{"id":1736,"date":"2023-02-28T02:30:00","date_gmt":"2023-02-28T01:30:00","guid":{"rendered":"https:\/\/as-schneider.blog\/?p=1736"},"modified":"2023-01-24T10:18:21","modified_gmt":"2023-01-24T09:18:21","slug":"challenges-of-blending-hydrogen-into-natural-gas","status":"publish","type":"post","link":"https:\/\/as-schneider.blog\/2023\/02\/28\/challenges-of-blending-hydrogen-into-natural-gas\/","title":{"rendered":"Challenges of blending hydrogen into natural gas"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1736\" class=\"elementor elementor-1736\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ac437ec elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ac437ec\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-348fd88\" data-id=\"348fd88\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f6110a0 elementor-widget elementor-widget-heading\" data-id=\"f6110a0\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Challenges of blending hydrogen into natural gas<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4c1dfb0 elementor-widget elementor-widget-text-editor\" data-id=\"4c1dfb0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>We are about to enter a new industrial age. The age of blended gaseous fuels! Blended fuels generate when mixing hydrogen with natural gas in the existing grid. <\/strong><strong style=\"font-size: 1rem;\">Above everything, blending is an urgent trend seeking to speed up the current decarbonization plans to stop climate change. <\/strong><\/p><p><strong style=\"font-size: 1rem;\">There is a key issue about it, though. Hydrogen has different chemical properties than natural gas. Thus, in a blended scenario, the fuel is likely to operate outside the already standardized values. Such a notice calls for special considerations, as the natural gas regulatory framework loses its stamp as a valid reference. <\/strong><\/p><p><strong style=\"font-size: 1rem;\">There&#8217;s another major factor to add. The technical instructions on hydrogen with focus on valves don&#8217;t have approval yet. Systematically speaking, blending is a wide-open scenario. <\/strong><\/p><p><strong style=\"font-size: 1rem;\">To bring context to today&#8217;s status, we have gone on a detailed research and compiled relevant information from different external sources that comes in handy to prepare for the blending future now. You can read all about it right below.<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1c622c7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1c622c7\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b128e2d\" data-id=\"b128e2d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5d88f69 elementor-widget elementor-widget-heading\" data-id=\"5d88f69\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Legal limits for hydrogen<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc7d33b elementor-widget elementor-widget-text-editor\" data-id=\"dc7d33b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>At this stage, knowing the H2 legal limit for a potential application is first on the list. These are the main findings after overviewing H2 conditions for top activities:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-deb8d8d uael-header-sticky-no uael-border-yes elementor-widget elementor-widget-uael-table\" data-id=\"deb8d8d\" data-element_type=\"widget\" data-widget_type=\"uael-table.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div itemscope class=\"uael-table-wrapper\" itemtype=\"http:\/\/schema.org\/Table\">\n\t\t<table id=\"uael-table-id-deb8d8d\" class=\"uael-text-break uael-column-rules uael-table\" data-sort-table=\"no\" data-show-entry=\"no\" data-searchable=\"no\" data-responsive=\"no\">\n\t\t\t\t<thead>\n\t\t\t\t\t\t\t\t\t\t<tr class=\"uael-table-row\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<th data-sort=\"0\" class=\"sort-this elementor-repeater-item-56ab002 uael-table-col uael-table-head-cell-text\" scope=\"col\">\n\t\t\t\t\t\t\t<span class=\"sort-style\">\n\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Application area<\/span>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/th>\n\t\t\t\t\t\t\t\t\t\t\t\t<th data-sort=\"1\" class=\"sort-this elementor-repeater-item-fe5f6e6 uael-table-col uael-table-head-cell-text\" colspan=\"2\" scope=\"col\">\n\t\t\t\t\t\t\t<span class=\"sort-style\">\n\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Legal limits for hydrogen<\/span>\n\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t<\/th>\n\t\t\t\t\t\t\t\t<\/thead>\n\t\t\t\t<tbody>\n\t\t\t<!-- ROWS -->\n\t\t\t\t\t\t\t\t\t\t<tr data-entry=\"1\" class=\"uael-table-row\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-d5c65ee\" data-title=\"Application area\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Hydrogen transportation<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-04d869e\" data-title=\"Legal limits for hydrogen\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">For a biogas source (e.g. power-to-gas), hydrogen transport conditions can be in the form of a gaseous energy carrier via the natural gas grid. The German Technical and Scientific Association for Gas and Water (DVGW) specifies the parameters in worksheets G 260 and G 262. \n<br><\/br>Hydrogen from electrolysis and synthetic methane must comply with a legal limit of 1%-10% (vol) in the natural gas grid.  <\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr><tr data-entry=\"2\" class=\"uael-table-row\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-92962fe\" data-title=\"Application area\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Natural gas vehicles<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-6ca81ea\" data-title=\"Legal limits for hydrogen\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">DVGW regulations (worksheet G 262) allow injections into the public grid below 10% (vol). Further details you will find in the section \"20% hydrogen blending\".\n<br><\/br>DIN 51624 sets a limit value for hydrogen in the tanks of natural gas vehicles specified at 2% (vol).<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr><tr data-entry=\"3\" class=\"uael-table-row\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-279626d\" data-title=\"Application area\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Gas turbine<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-3e6b692\" data-title=\"Legal limits for hydrogen\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Manufacturers set a 1%-5% hydrogen limit (vol) to avoid machine issues caused by a low-pollution premix in burners \"sensitive\" to the component.<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/tr><tr data-entry=\"4\" class=\"uael-table-row\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-b89356d\" data-title=\"Application area\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">Underground Pore\nStorage Facilities\n<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<td class=\"uael-table-col uael-table-body-cell-text elementor-repeater-item-bd86eeb\" data-title=\"Legal limits for hydrogen\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"uael-table__text-inner\">A presence of 1% hydrogen blending is accepted in any gas storage facility. Beyond that, hydrogen's biogas content should not exceed 5% (vol) in underground pore storage areas. This limit avoids the growth of undesirable sulfate-reducing bacteria harmful to the site.<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/td>\n\t\t\t\t\t\t\t\t\t<\/tbody>\n\t<\/table>\n\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1166834 elementor-widget elementor-widget-text-editor\" data-id=\"1166834\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A careful and precise balance of the H2 injection quotas into the natural grid is at play to ensure these specifications stay in range and not affect clients or downstream operations.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-331b8c0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"331b8c0\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[],&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b8059da\" data-id=\"b8059da\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5121254 elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"5121254\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<i aria-hidden=\"true\" class=\"fas fa-info-circle\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-38e096c elementor-widget elementor-widget-heading\" data-id=\"38e096c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">20% hydrogen blending<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b36ff5 elementor-widget elementor-widget-text-editor\" data-id=\"0b36ff5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The perspectives for blending hydrogen into the natural gas grid aim for escalated growth. This notion pairs well with the plans to produce more hydrogen content gradually.\u00a0<\/p><p>The current base in the regulations allows 10% (vol) H2 presence in the network as already mentioned above at the point &#8220;Legal limits for hydrogen&#8221;. Future targets seek to move up to 20% (vol) and an eventual 50% (vol). The ultimate goal is also to have 100% (vol) of H2 in grid sections where is possible. Of course, many actors must work together and align to make it happen. That means mostly the producers, operators, consumers, and government. They are the central figures with the power to push the plans forward.\u00a0<\/p><p>In the meantime, let&#8217;s go over an exciting project seeking to meet the blending of 20% hydrogen in natural gas pipelines.<\/p><p>We are talking about the innovative research project by Avacon Netz and DVGW. A pilot to model hydrogen injection into the gas distribution network to assess the effect on household appliances. Early lab tests are encouraging! They showed that the appliances operated just fine at levels up to 30% hydrogen admixture. The later approval process is subject to tests with a gas containing 23% hydrogen.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e96543c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e96543c\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e74bd3e\" data-id=\"e74bd3e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f9544be elementor-widget elementor-widget-heading\" data-id=\"f9544be\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">H2  tolerance of different components in the natural gas infrastructure<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e49882 elementor-widget elementor-widget-text-editor\" data-id=\"0e49882\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Learning about H2&#8217;s tolerance to different components in the natural gas infrastructure is just as poignant as knowing about the legal limits of H2 blending in the existing natural gas grid. To tackle the topic, it was important to look for identifiable patterns in H2&#8217;s response to several installations, such as:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b7c3a80 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"b7c3a80\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">natural gas tanks, <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">pipelines,<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">gas turbines, <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">compressors,<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">underground storage facilities,<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">ultrasonic, turbine, and bellows gas meters,<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">gas pressure regulators, <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">valves, and <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">properties such as transport capacity and permeation.<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-992a40b elementor-widget elementor-widget-text-editor\" data-id=\"992a40b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>During research, a 2013 study led by M\u00fcller-Syring et al. for the DVGW came up. Their work centered on the &#8220;development of modular concepts for the generation, storage, and injection of hydrogen and methane into the natural gas grid.&#8221;\u00a0<\/p><p>Through this study, it became possible to summarize the relevant data to assess H2 tolerance vs. different components in the natural gas infrastructure. The figure below captures the core findings by depicting essential elements. Feel free to look at it to explore the compatibility evaluation. The basis covers existing data and H2 concentration ranges of 0 to 70% (vol).<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a477253 elementor-widget elementor-widget-image\" data-id=\"a477253\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"685\" height=\"373\" src=\"https:\/\/as-schneider.blog\/wp-content\/uploads\/sites\/16\/2023\/01\/overview-matrix-H2-tolerance-of-selected-elements-in-natural-gas-network-asschneider.png\" class=\"attachment-large size-large wp-image-1738\" alt=\"Overview matrix shows H2 tolerance of selected elements in the natural gas network.\" srcset=\"https:\/\/as-schneider.blog\/wp-content\/uploads\/sites\/16\/2023\/01\/overview-matrix-H2-tolerance-of-selected-elements-in-natural-gas-network-asschneider.png 685w, https:\/\/as-schneider.blog\/wp-content\/uploads\/sites\/16\/2023\/01\/overview-matrix-H2-tolerance-of-selected-elements-in-natural-gas-network-asschneider-300x163.png 300w\" sizes=\"(max-width: 685px) 100vw, 685px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d747b51 elementor-widget elementor-widget-text-editor\" data-id=\"d747b51\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Overview matrix: H2 tolerance of selected elements in the natural gas network. (<a href=\"https:\/\/www.bundestag.de\/resource\/blob\/646488\/a89bbd41acf3b90f8a5fbfbcb8616df4\/WD-8-066-19-pdf-data.pdf\">source<\/a>)<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f93592a elementor-widget elementor-widget-text-editor\" data-id=\"f93592a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The authors of the 2013 study suggest that the suitability of individual elements of the supply chain for higher hydrogen concentrations seems to be quite possible.<\/p><p>In contrast, other researchers believe that crucial components and infrastructure elements are not hydrogen-tolerant to the extent expected.<\/p><p>A case-by-case examination should be conducted to prove which theory is on the right track.\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9b99e6f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9b99e6f\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cf51454\" data-id=\"cf51454\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-48ffe2e elementor-widget elementor-widget-heading\" data-id=\"48ffe2e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Modernization of calibration regulations<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-286647f elementor-widget elementor-widget-text-editor\" data-id=\"286647f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Hydrogen blending in natural gas pipelines poses a crucial challenge. Even more so for network and gas metering point operators. For them, this is a new stage. A stage where estimating the energy content of the mixed gas at the exit points calls for high metering accuracy and great operational expertise. On that note alone, an adjustment to the philosophy to run and start-up the infrastructure is due.<\/p><p>But, what other change could stand out in sight of operating a &#8216;hydrogen blended with natural gas&#8217; network?<\/p><p>The modernization of technical and calibration regulations, for sure! This update is an urgent action to moderate the aspects related to quality and monitoring while blending hydrogen. Here are three examples that bring attention to its importance:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-bcbe8fd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bcbe8fd\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-8be764e\" data-id=\"8be764e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-34280dc elementor-widget elementor-widget-heading\" data-id=\"34280dc\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1.\tHeating value<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-ab7cb9f\" data-id=\"ab7cb9f\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-eb5999b elementor-widget elementor-widget-text-editor\" data-id=\"eb5999b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Hydrogen has a calorific value of \u2248 4 kWh\/Nm\u00b3. Natural gas is \u2248 10 kWh\/Nm\u00b3.<\/p><p>Hydrogen blended with natural gas creates a mix whose properties divert from those approved in technical regulations.<\/p><p>A change must happen to introduce compliance targets that suit this new mix. Otherwise, wrongful penalizations may occur.\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-346b9ca elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"346b9ca\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-bd83915\" data-id=\"bd83915\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cce30e8 elementor-widget elementor-widget-heading\" data-id=\"cce30e8\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2.\tMetrology<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-93bd17c\" data-id=\"93bd17c\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-545a121 elementor-widget elementor-widget-text-editor\" data-id=\"545a121\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Measurement equipment and accessories are central to all operations. Hydrogen blending in natural gas pipelines is not an exception.<\/p><p>In July 2020, the Federal Network Agency (BNetzA) stated its support for the adequacy of metrology systems to meet the terms of hydrogen blending. They emphasized that &#8220;the measuring equipment, in particular the process gas chromatographs, &#8230;would [have to be] completely replaced, as they are currently not capable of or approved for hydrogen measurement.&#8221;<\/p><p>Besides, doing the replacements is mandatory for correct billing under calibration law.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-847eed5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"847eed5\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-e447123\" data-id=\"e447123\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5ccd147 elementor-widget elementor-widget-heading\" data-id=\"5ccd147\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Billing<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-top-column elementor-element elementor-element-1c8a994\" data-id=\"1c8a994\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cb0ee31 elementor-widget elementor-widget-text-editor\" data-id=\"cb0ee31\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Determined energy contents represent the basis for billing in the value chain. All users included.<\/p><p>Since the hydrogen content at each exit point fluctuates depending on the load flows, today&#8217;s legal metrology regulations don&#8217;t enable decentralized supply to end customers.<\/p><p>Billing methods must adapt to the new modality.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1b5fceb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1b5fceb\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-965c0b3\" data-id=\"965c0b3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e0a2a49 elementor-widget elementor-widget-text-editor\" data-id=\"e0a2a49\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\tAs seen above, hydrogen blending in natural gas grid infrastructure implies significant changes to the technical regulations. Going over them promptly matters. It&#8217;s the path to start on the right foot.\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-01021d6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"01021d6\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f5688b3\" data-id=\"f5688b3\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d214ba4 elementor-widget elementor-widget-heading\" data-id=\"d214ba4\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Hydrogen injection and storage<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-548c2ee elementor-widget elementor-widget-text-editor\" data-id=\"548c2ee\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>The injection of H2 into the natural gas grid infrastructure has limits. The reason behind it? The differences in chemical composition and fuel properties between H2 and natural gas in the grids. Their mixture could risk connected gas applications \u2014 and the network itself \u2014 if the final H2 % (vol) is loose. Hence, setting boundaries to prevent harmful impacts applies.\u00a0<\/p><p>On storage, H2 is only suitable for underground cavern facilities.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-85b0eb0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"85b0eb0\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-16b3149\" data-id=\"16b3149\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-858e9c2 elementor-widget elementor-widget-heading\" data-id=\"858e9c2\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Temperature influences<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ba78185 elementor-widget elementor-widget-text-editor\" data-id=\"ba78185\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Seasonal dependencies affect the hydrogen blending process. This phenomenon happens in the high-temperature months of summer.<\/p><p>In the summer, the low energy consumption and throughput often come with a reduced flow rate. If this low flow rate is to feed hydrogen only, the mixture with (existing) natural gas won&#8217;t be good. Hydrogen bubbles will form. Then, high hydrogen concentrations in the natural gas network appear.<\/p><p>As turns out, watching over the temperature makes a difference in blending efficiency.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1ace326 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1ace326\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-6aaaabc\" data-id=\"6aaaabc\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d590354 elementor-widget elementor-widget-heading\" data-id=\"d590354\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Gas flow rate continuity in the network<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b02c861 elementor-widget elementor-widget-text-editor\" data-id=\"b02c861\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Natural gas flow in the grid is yet another aspect to watch when blending hydrogen. The significance lies in the impact it can have on the compliance of legal limits.\u00a0<\/p><p>Since hydrogen&#8217;s concentration in the natural gas network is about 10% and, for some applications, it can&#8217;t be above 2%, monitoring gas flow rate is essential to decide when and where to feed H2 into the grid.\u00a0<\/p><p>About that, experience avails that:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c58aab0 elementor-icon-list--layout-traditional elementor-list-item-link-full_width elementor-widget elementor-widget-icon-list\" data-id=\"c58aab0\" data-element_type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">a location with a continuous high gas flow in the network is helpful for electrolyzers<\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-check\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">on the other hand, even small hydrogen amounts in low natural gas flow rates can lead to local exceedance of the permissible limits. <\/span>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bd1eb1a elementor-widget elementor-widget-text-editor\" data-id=\"bd1eb1a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>This insight is key for operators. So, they can pick the best location in the grid for H2 injection.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-abcfae3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"abcfae3\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e460d17\" data-id=\"e460d17\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2da4c2c elementor-widget elementor-widget-heading\" data-id=\"2da4c2c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Storage proximity<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab1b68c elementor-widget elementor-widget-text-editor\" data-id=\"ab1b68c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Always check the spatial proximity with gas storage facilities in advance. Especially when there is a large water electrolyzer with downstream methanation. This is a vital step that can enhance the process.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e383019 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e383019\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4a441cd\" data-id=\"4a441cd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-20a9551 elementor-widget elementor-widget-heading\" data-id=\"20a9551\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Final thoughts<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1289d6f elementor-widget elementor-widget-text-editor\" data-id=\"1289d6f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Creating a new model for hydrogen transport and distribution while blended with natural gas is an exciting prospect to look forward to in the years ahead. With that, the help of many actors is central to write joint and decentralized frameworks to regulate the rising industry.<\/p><p>A recent win for the cause is the recently confirmed support of the natural gas sector, which feels inspiring and encouraging at this time. A leading example of coming together for a shared aim:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fe834fa elementor-widget elementor-widget-text-editor\" data-id=\"fe834fa\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><em><strong>&#8220;The making of a sustainable hydrogen economy that can benefit from the well-kept natural gas infrastructure. All in favor of spreading the path of transformation and innovation!&#8221;<\/strong><\/em><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b9f707 elementor-widget elementor-widget-text-editor\" data-id=\"2b9f707\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Still, there&#8217;s much work left to do to accomplish goals and targets. So, at this moment, I want to focus on just a couple of spheres:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b23e236 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b23e236\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c9b7631\" data-id=\"c9b7631\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-914f57d elementor-widget elementor-widget-heading\" data-id=\"914f57d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Operational-technical <\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1be8088 elementor-widget elementor-widget-text-editor\" data-id=\"1be8088\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Operators must gain an extensive view of this new landscape. After all, their hands are the ones to be in charge of calibrating and manipulating equipment to blend hydrogen into the natural gas grids at ratio. Beyond that, they need to be on top of operational procedures subject to drastic change. Not a surprising fact when aware of the fast swifts in the hydrogen chain according to the type of process: electrolysis, storage, methanation, injection, and end-user conditions.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a8a7967 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a8a7967\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-588b4ac\" data-id=\"588b4ac\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3134018 elementor-widget elementor-widget-heading\" data-id=\"3134018\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Political and economic<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c7d06e elementor-widget elementor-widget-text-editor\" data-id=\"1c7d06e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>A few years back, when hydrogen first entered the picture, the idea was to build an entire infrastructure around it. As time passed, the approach of blending hydrogen into the natural gas network really took off as the most affordable solution. Yet, there is a lack of certainty on how far the blending can go. And if an extra effort to build or reclassify dedicated H2 systems is necessary anymore. This latter scenario is more consuming, as it demands more resources to execute. Moving on from this uncertainty phase is crucial. The way to do this is through clear strategies and frameworks. Better yet, they have to be championed by government policies that provide clear insights and guidelines for the future of hydrogen.<\/p><p>Those are my final thoughts on this evolving matter.<\/p><p>Until a next time.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7e2bed5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7e2bed5\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-b90a4ad\" data-id=\"b90a4ad\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fc1e5c7 elementor-widget elementor-widget-heading\" data-id=\"fc1e5c7\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">External sources<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8752b58 elementor-widget elementor-widget-text-editor\" data-id=\"8752b58\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul><li><a href=\"https:\/\/www.bundestag.de\/resource\/blob\/646488\/a89bbd41acf3b90f8a5fbfbcb8616df4\/WD-8-066-19-pdf-data.pdf\">Grenzwerte f\u00fcr Wasserstoff (H2) in der Erdgasinfrastruktur <\/a><\/li><li><a href=\"https:\/\/h2.vku.de\/fileadmin\/user_upload\/Kampagnenseiten\/Wasserstoff\/210412_Zukunft-H2.pdf\">Zukunft Wasserstoff<\/a><\/li><li><a href=\"https:\/\/www.dena.de\/fileadmin\/dena\/Dokumente\/Pdf\/9103_Fachbroschuere_Integration_erneuerbaren_Stroms_in_das_Erdgasnetz_Power_to_Gas.pdf\">Integration erneuerbaren Stroms in das Erdgasnetz. <\/a><\/li><li><a href=\"https:\/\/www.tga-fachplaner.de\/energietechnik\/h2-ready-wasserstoff-im-erdgas-wie-viel-klimaschutz-bringt-h2-ready\">Wasserstoff im Erdgas: Wie viel Klimaschutz bringt H2-ready?<\/a><\/li><li><a href=\"https:\/\/gas.info\/energie-gas\/wasserstoff\">Wasserstoff<\/a><\/li><li><a href=\"https:\/\/www.process.vogel.de\/herausforderung-wasserstoff-was-pipelinebetreiber-wissen-muessen-a-983666\/\">Herausforderung Wasserstoff &#8211; Was Pipeline-Betreiber wissen m\u00fcssen<\/a><\/li><li><a href=\"https:\/\/www.dvgw.de\/medien\/dvgw\/gas\/infrastruktur\/ptg_werkstofffragen_1409.pdf\">Neues Gas in alten Leitungen \u2013 Werkstofffragen<\/a><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1420e37 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1420e37\" data-element_type=\"section\" data-settings=\"{&quot;jet_parallax_layout_list&quot;:[]}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-60fa8fa\" data-id=\"60fa8fa\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-83ab9d3 elementor-widget elementor-widget-text-editor\" data-id=\"83ab9d3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Image Source: \u00a9 <a href=\"https:\/\/stock.adobe.com\/de\/images\/a-hydrogen-pipeline-illustrating-the-transformation-of-the-energy-sector-towards-to-ecology-carbon-neutral-secure-and-independent-energy-sources-to-replace-natural-gas-3d-rendering\/498531479\">malp<\/a> (Adobe Stock) &amp; AS-Schneider<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>We are about to enter a new industrial age. The age of blended gaseous fuels! Blended fuels generate when mixing hydrogen with natural gas in the existing grid. Above everything, blending is an urgent trend seeking to speed up the current decarbonization plans to stop climate change. To bring context to today&#8217;s status, we have gone on a detailed research and compiled relevant information from different external sources that comes in handy to prepare for the blending future now.<\/p>\n","protected":false},"author":29,"featured_media":1739,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1293],"tags":[1458,1452,1461,1453,1198,1199,1451,1197],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.3 (Yoast SEO v22.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Challenges of blending hydrogen into natural gas<\/title>\n<meta name=\"description\" content=\"Blending hydrogen with natural gas requires compliance with regulations and H2 limits. We have summarized the relevant information for you.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/as-schneider.blog\/2023\/02\/28\/challenges-of-blending-hydrogen-into-natural-gas\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Challenges of blending hydrogen into natural gas\" \/>\n<meta property=\"og:description\" content=\"Blending hydrogen with natural gas requires compliance with regulations and H2 limits. 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