Application of plasma modified catalyst in removal of hydrogen sulfide, hydrogen phosphide and arsenic hydride

A technology of plasma and catalyst, which is applied in the field of ion modified catalysts, can solve the problems of simultaneous removal, small adsorption capacity, and low adsorption efficiency, and achieve excellent catalytic activity, high adsorption efficiency, and long-lasting effects
CN112657558AInactive Publication Date: 2021-04-16KUNMING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Publication Date
2021-04-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an application of a plasma modified catalyst in removal of hydrogen sulfide, hydrogen phosphide and arsenic hydride, which comprises the following steps: introducing a gas containing hydrogen sulfide, hydrogen phosphide and arsenic hydride into a reactor filled with the plasma modified catalyst, and removing hydrogen sulfide, hydrogen phosphide and arsenic hydride at 60-90 DEG C; the MOFs generate more unsaturated metal active sites and a large number of active free radicals through low-temperature plasma discharge, and the prepared plasma modified catalyst is applied to removal of hydrogen sulfide, hydrogen phosphide and arsenic hydride, has a good removal effect at a low temperature, can be widely applied to simultaneous removal of H2S, PH3 and AsH3 in various gas sources. The method is suitable for industrial application and market promotion.
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Description

technical field

[0001] The present invention relates to a new application of a plasma modified catalyst, that is, it removes hydrogen sulfide (H 2 S), phosphine (PH 3 ), arsine (AsH 3 ) and belongs to the field of catalyst preparation and application. Background technique

[0002] h 2 S and PH 3 Widely present in the atmospheric environment, it will cause serious pollution and harm to the environment and human body when it is discharged into the atmospheric environment during industrial production and use. h 2 S is easy to cause catalyst poisoning and deactivation, and has a corrosive effect on industrial production equipment. In addition, H emitted to the atmosphere without treatment 2 S can form sulfur dioxide, promote photochemical reactions, and eventually transform into sulfate aerosols, causing serious environmental problems. There will also be AsH in the flue gas emitted by industrial production 3 the presence of AsH 3 It is a colorless, garlic-smelling, hig...

Claims

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