Methanation is the process that allows for the conversion of hydrogen produced from a surplus of renewable electrical energy into methane, by reacting it with the right amount of CO2. In biological methanation, this conversion occurs at low temperatures thanks to the action of microorganisms. RSE has set up a pilot plant for biological methanation employing trickle bed reactor technology. The experimentation was started with one of these reactors at atmospheric pressure, and the second one under pressure to evaluate how this parameter affects the production and purity of methane.<\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1305,1360,1300,1392,1307],"targets":[1304,1317],"rapporti_tipologie":[762],"class_list":["post-204844","rapporti","type-rapporti","status-publish","hentry","tag-energy-efficiency-en","tag-hydrogen","tag-industrial-sector","tag-power-to-gas-en","tag-renewable-energy-en","targets-industrial-world","targets-research","rapporti_tipologie-report-en"],"acf":{"dont_show_hompage":true,"projects":{"ID":188414,"post_author":"93","post_date":"2024-06-13 15:10:34","post_date_gmt":"2024-06-13 13:10:34","post_content":"","post_title":"Hydrogen technologies","post_excerpt":"The \u2018Hydrogen Technologies\u2019 project is a vast and ambitious research program that deals, at different levels, with multiple technologies concerning the entire hydrogen value chain, from production, to transport and storage, to end uses. \nThe research activities proposed by RSE, ENEA and CNR are very innovative in nature and focus on relatively medium to low levels of technological maturity.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"hydrogen-technologies","to_ping":"","pinged":"","post_modified":"2024-07-03 10:58:19","post_modified_gmt":"2024-07-03 08:58:19","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/hydrogen-technologies\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
“Power to Gas” can represent one of the crucial solutions for storing excess renewable energy by converting electricity into hydrogen and combining it with CO2 through the Sabatier reaction. RSE has focused its research on ex-situ biomethanation, particularly using trickle bed reactors (TBR). In RSE’s “Biological Methanation” Laboratory in Milan, initiated during the previous research phase (PTR 2019-2021), the first reactor (R1) was successfully inoculated, and atmospheric pressure experimentation produced methane within 70 hours of inoculation.<\/p>\n
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Over the three-year research period (PTR 22-24), RSE initiated experimentation on the second reactor (R2), focusing on analyzing the effects of operating pressure on methane production and purity. At higher pressures, increased solubility facilitates the absorption of these gases, accelerating the biological methanation reactions.<\/p>\n
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During the transition to high pressure, the strategy employed allowed microorganisms to adapt gradually to the new operating conditions, incrementally increasing both pressure and feed rates. Monitoring hydrogen concentrations and pH management were crucial to ensuring high methane purity in the outgoing gas. The Methane Production Rate (MPR) estimation revealed a value of 4.6 m3 CH4\/m3 of useful volume per day, indicating high system efficiency.<\/p>\n
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Despite the transient conditions related to CO2 solubility and pressure changes, the system demonstrated a robust ability to handle the required conditions for methane production through the biological pathway. The results provide a solid foundation for further operational optimizations and insights.<\/p>\n
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The document is available on the site in Italian<\/strong><\/p>\n","link_estreno":false,"scarica_file":false,"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2023-06-30","autori":"C. Valli, M. Mastroleo, M. L. V. Nordio, M. Mastroleo, A. Rossetti (RSE S.p.A.), M. Changizi, F. Malpei (Politecnico di Milano)","rapporto":"","rif_rse":"23007602"},"satellite_post_url":""},"yoast_head":"\n