Biogas generation system

The sealed container system with heating and depressurization efficiently generates biogas by evaporating ammonia and water, reducing digestate and energy use, while maintaining methane fermentation efficiency and managing by-products.

JP7880641B2Active Publication Date: 2026-06-26SHIMOSE MICROBES LAB CORP
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Patent Information

Application Number
JP2024517867
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-04-30
Filing Date
2023-02-27
Publication Date
2026-06-26
Estimated Expiration
2043-02-27

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Abstract

Provided is a biogas generation system in which a digestive liquid can be inhibited from occurring, that is capable of removing ammonia inside organic matter irrespective of the freshness of the organic matter and efficiently performing methane fermentation, and that further has energy-saving properties and excellent environmental friendliness.　The present invention comprises: a tightly sealed container 2 that contains organic matter; a stirring device 3 that stirs the organic matter contained in the tightly sealed container 2; a gas-fired boiler 4 that heats the inside of the tightly sealed container 2 to a predetermined temperature; a vacuum pump 5 that reduces the pressure inside the tightly sealed container 2; and a reservoir tank 6 that retains a biogas generated by subjecting the organic matter to methane fermentation in the tightly sealed container 2. A portion of the biogas retained in the reservoir tank 6 is supplied as a fuel to the gas-fired boiler 4.
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Citation Information

Patent Citations

  • Method and system for treating garbage containing plastic material

    JP2001058176A

  • Method of high concentration methane fermentation

    JP2002224645A

  • Treatment method and apparatus for organic waste

    JP2004122004A

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    JP2007054731A