Method of plasma decomposing hydrogen sulfide

A technology of plasma and hydrogen sulfide, applied in the field of plasma chemistry, can solve the problems of low conversion rate of hydrogen sulfide and high energy consumption of decomposition
CN110127623BActive Publication Date: 2021-09-14CHINA 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
2021-09-14

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Abstract

The invention relates to the field of plasma chemistry, and discloses a method for decomposing hydrogen sulfide by plasma, comprising: introducing raw material gas containing hydrogen sulfide into a plasma system containing a plasma reactor for sulfurization under dielectric barrier discharge conditions Hydrogen decomposition reaction, the dielectric barrier discharge conditions include: a discharge voltage of 5-30kV, a discharge frequency of 200-30000Hz; and the conditions of the hydrogen sulfide decomposition reaction include: a reaction temperature of 0-800°C, a reaction pressure of -0.06 MPa to 0.6MPa, the residence time of the reactant in the plasma reactor is 1×10 ‑5 ~120s. The method for decomposing hydrogen sulfide by plasma provided by the present invention can obtain a higher conversion rate of hydrogen sulfide under dielectric barrier discharge conditions by adopting specific discharge conditions and hydrogen sulfide decomposition reaction conditions.
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Description

technical field

[0001] The invention relates to the field of plasma chemistry, in particular to a method for decomposing hydrogen sulfide by plasma. 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 poisoning and deactivation of catalysts in chemical production; in addition, hydrogen sulfide can also harm human health and cause environmental pollution. Therefore, the harmless treatment of a large amount of hydrogen sulfide gas generated in industrial fields such as petroleum, natural gas, coal and mineral processing needs to be solved in terms of process requirements, equipment maintenance and environmental protection requirements.

[0003] At present, the Claus process is commonly used in industry to treat hydrogen sulfide, and the method is to partially oxidize hydrogen sulfide to obtain sulfur and water. Although this method solves t...

Claims

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