Method For Creating Methane-Enriched Gas
Patent No. EP3967761 (titled "Method For Creating Methane-Enriched Gas") was filed by Hitachi Zosen Inova Schmack on Sep 9, 2020. The application was issued on Mar 15, 2023.
Patent Summary
A method for producing a methane-enriched gas through biological methanation, where the carbon dioxide content in the product gas is controlled to maintain a stable level between 0.1-5% by volume, rather than regulating the hydrogen-to-carbon dioxide ratio. This approach enables precise control of the product gas quality, particularly the hydrogen content, while maintaining a stable pH environment in the bioreactor. The method involves measuring the actual carbon dioxide content in the product gas, comparing it to a setpoint value, and adjusting the feed gas composition accordingly to maintain the desired carbon dioxide level.
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EP3967761
- Application Number
- EP20195201A
- Filing Date
- Sep 9, 2020
- Status
- Revoked
- Feb 21, 2025
- Publication Date
- Mar 15, 2023
- External Links
- Slate, Register , Google Patents