Process for recovering hydrogen sulfide form anaerobic fermentation methane

An anaerobic fermentation, hydrogen sulfide technology, applied in hydrogen sulfide, gas fuel, petroleum industry and other directions, can solve problems such as high cost, operator injury, combustion equipment corrosion, etc., to improve environmental protection processes, reduce manufacturing costs, and reduce pressure Effect
CN101306801AInactive Publication Date: 2008-11-19RIZHAO JINHE BOYUAN BIOCHEM
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
RIZHAO JINHE BOYUAN BIOCHEM
Publication Date
2008-11-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a hydrogen sulfide recovery process, particularly to a novel method for recovering hydrogen sulfide from anaerobic fermented biogas. The method comprises the step of countercurrent absorption of hydrogen sulfide-containing biogas with a sodium-containing alkaline solution as an eluent. The inventive method can effectively elute hydrogen sulfide gas from biogas to clean the biogas, and can produce sodium hydrosulfide with high added value.
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Description

technical field

[0001] The invention relates to a tail gas recovery process, in particular to a method for recovering hydrogen sulfide from anaerobic fermentation biogas which produces hydrogen sulfide. Background technique

[0002] In many industries, such as the fermentation industry and the sewage treatment industry, anaerobic fermentation is relatively common. Anaerobic fermentation refers to the fermentation of materials by fermentation bacteria in an environment with no oxygen or only trace oxygen. Traditional anaerobic fermentation The process is to pass the sewage containing organic matter into a closed or semi-closed container, and make the sewage contact with the anaerobic bacteria in the anaerobic reactor through mechanical stirring, pump circulation or biogas-driven circulation, so that the anaerobic bacteria will COD Degradation produces biogas.

[0003] In the existing anaerobic fermentation, a large amount of combustible gas will be produced due to the chemic...

Claims

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