{"id":56493,"date":"2025-05-20T04:51:37","date_gmt":"2025-05-20T02:51:37","guid":{"rendered":"https:\/\/www.expo21xx.com\/news\/?p=56493"},"modified":"2025-05-20T04:51:39","modified_gmt":"2025-05-20T02:51:39","slug":"innovative-concept-increases-biomethane-yield-using-green-hydrogen","status":"publish","type":"post","link":"https:\/\/www.expo21xx.com\/news\/innovative-concept-increases-biomethane-yield-using-green-hydrogen\/","title":{"rendered":"Innovative Concept Increases Biomethane Yield Using Green Hydrogen"},"content":{"rendered":"\n

At the B\u00fctzberg Biogas and Composting Plant (BKW), operated by\u00a0MVR M\u00fcllverwertung Rugenberger Damm GmbH\u00a0\u2013 a company of the\u00a0Stadtreinigung Hamburg\u00a0(SRH) \u2013 self-generated green hydrogen (H\u2082) is being used to increase the yield of biomethane.\u00a0<\/p>\n\n\n

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Overview of the BKW\u00a0
Photo by AWITE<\/figcaption><\/figure><\/div>\n\n\n

The BKW processes the contents of 150,000 organic waste bins from the Hanseatic city each year in three dry fermentation lines, producing around one million cubic metres of biomethane and 17,000 tonnes of compost. In order to enhance the biomethane yield, the biogas plant has been combined with Power-to-Gas (PtG) technology. For this purpose, green hydrogen is injected into 14 of the total 21 garage fermenters. The hydrogen is generated using a 1,0 MW electrolyser. The electricity required for this process is sourced from renewable energy via a Power Purchase Agreement (PPA).<\/p>\n\n\n\n

The additional hydrogen is converted into methane during the biogas process through microbial methanation, reacting with the CO\u2082 present. This enables an increase in biomethane yield of up to 20%. This combination of dry fermentation and PtG technology is unique in Germany. Further comprehensive information on the project can be found here:Project Overview 6.2 \u2013 Northern Germany Real Laboratory.<\/p>\n\n\n\n

Three\u00a0AwiFLEX XL\u00a0gas analysis systems are used to monitor the process. Two identical systems each monitor seven garage fermenters and the main gas collection line of the digestion system. To ensure reliable monitoring during the start-up and shut-down of the individual fermenters, continuous measurement of CH\u2084, CO\u2082, O\u2082, and H\u2082 is carried out. Depending on utilisation, the measurement can be switched to each individual fermenter. H\u2082S is also measured intermittently.<\/p>\n\n\n

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Photo by AWITE<\/figcaption><\/figure><\/div>\n\n\n

The third gas analysis system continuously monitors gas quality before and after the biogas upgrading process. It is equipped with an automatic range-switching feature for hydrogen. Depending on the amount of H\u2082 dosed into the process, it switches between an electrochemical sensor (0\u201350,000 ppm) and a thermal conductivity sensor (0\u2013100%).<\/p>\n\n\n\n

Hydrogen is highly reactive, volatile (14 times lighter than air), and the smallest chemical element, with a high diffusion rate. These properties are taken into account in the gas analysis system design through the use of PTFE (Teflon) tubing, detonation flame arrestors, and internal hydrogen monitoring.<\/p>\n\n\n\n

All gas analysis<\/a> systems feature automatic calibration, gas coolers, remote access, and redundant gas sampling pumps to ensure maximum measurement accuracy and reliability.<\/p>\n\n\n\n

PtG technology offers numerous advantages, including improved CO\u2082 efficiency in the biogas<\/a> process, chemical storage of renewable electricity, utilisation of power surpluses, and integration into the existing gas and electricity infrastructure \u2013 to name just a few.<\/p>\n\n\n\n

We are proud to contribute to this innovative concept from MVR and would like to thank them, as well as the SRH Group, for the exciting project and the excellent collaboration. We look forward to seeing how the BKW continues to evolve.<\/p>\n\n\n\n

For more information visit: awite.de<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

At the B\u00fctzberg Biogas and Composting Plant (BKW), operated by\u00a0MVR M\u00fcllverwertung Rugenberger Damm GmbH\u00a0\u2013 a company of the\u00a0Stadtreinigung Hamburg\u00a0(SRH) \u2013 self-generated green hydrogen (H\u2082) is being used to increase the yield of […]<\/p>\n","protected":false},"author":3,"featured_media":56496,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[18,611,2646,2647,2648],"class_list":["post-56493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-renewable-energy","tag-biogas","tag-biomethane","tag-gas-analysis","tag-gas-sampling-pumps","tag-landfill-gas"],"yoast_head":"\nInnovative Concept Increases Biomethane Yield Using Green Hydrogen - EXPO21XX.com NEWS<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.expo21xx.com\/news\/innovative-concept-increases-biomethane-yield-using-green-hydrogen\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fabian Becker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.expo21xx.com\/news\/innovative-concept-increases-biomethane-yield-using-green-hydrogen\/\",\"url\":\"https:\/\/www.expo21xx.com\/news\/innovative-concept-increases-biomethane-yield-using-green-hydrogen\/\",\"name\":\"Innovative Concept Increases Biomethane Yield Using Green Hydrogen - 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