Low-temperature plasma system for decomposing hydrogen sulfide and method for decomposing hydrogen sulfide

A low-temperature plasma and plasma technology, applied in the field of plasma chemistry, can solve the problems of low hydrogen sulfide conversion rate and unstable conversion rate, and achieve long-term operation, continuous and stable progress, and high conversion rate. Effect
CN110127627BActive Publication Date: 2020-09-01CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2020-09-01

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Abstract

The invention relates to the field of plasma chemistry, and discloses a low temperature plasma system for decomposing hydrogen sulfide, and a method for decomposing hydrogen sulfide. The system comprises a gas supply-gas distribution unit, a plasma reaction unit and a product separation unit, wherein the gas supply-gas distribution unit, the plasma reaction unit and the product separation unit aresequentially connected through pipelines, the plasma reaction unit comprises a low temperature plasma reactor and a plasma power source, the reactor comprises an inner cylinder, an outer cylinder, acenter electrode arranged in the inner cylinder, a barrier medium and a grounding electrode, the barrier medium is arranged around the side wall of the inner cylinder or wraps the outer surface of thecenter electrode or forms the side wall of the inner cylinder, and a ratio (L1:L2) of the thickness L1 of a discharge gas gap to the length L2 of a discharge region is 1:(0.5-6000). According to thepresent invention, with the apparatus and the method, the hydrogen sulfide conversion rate can be increased.
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Description

technical field

[0001] The invention relates to the field of plasma chemistry, in particular to a low-temperature plasma system for decomposing hydrogen sulfide and a method for decomposing hydrogen sulfide. Background technique

[0002] Hydrogen sulfide (H 2 S) is a highly toxic and foul-smelling acid gas, which not only causes corrosion of metals and other materials, but also easily leads to catalyst poisoning and deactivation in chemical production; in addition, hydrogen sulfide can also endanger human health and cause environmental pollution. Therefore, the harmless treatment of a large amount of hydrogen sulfide gas produced in industrial fields such as oil, natural gas, coal and mineral processing needs to be solved urgently, no matter in terms of process requirements, equipment maintenance or environmental protection requirements.

[0003] At present, the Claus method is commonly used in industry to treat hydrogen sulfide, and the method is to partially oxidize hydro...

Claims

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