Pollution gas treatment system and treatment method

A technology for polluting gas and treatment systems, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., to achieve stable operation, high selectivity, and easy operation
CN105435599AInactive Publication Date: 2016-03-30UNIV OF SCI & TECH BEIJING +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH BEIJING
Publication Date
2016-03-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a pollution gas treatment system and treatment method based on a chemical looping combustion principle; the pollution gas treatment system includes a first chemical looping combustion reactor, a second chemical looping combustion reactor, gas pipelines and three-way valves; the chemical looping combustion reactors are filled with oxygen carriers; the gas pipelines include a pollution gas pipeline, an air pipeline, a reduction reaction product gas pipeline and an oxidation reaction product gas pipeline; pollution gas contains hydrogen sulfide and other sulfur compounds or ammonia, trimethylamine and other amines. The treatment method includes the following steps: the pollution gas and the oxidation-state oxygen carrier undergo a reduction reaction, oxygen and the reduction-state oxygen carrier or metal sulfides undergo an oxidizing regeneration reaction, when the gas concentration in the two chemical looping combustion reactors reaches a set value, the three-way valves are switched, and treatment goes into a next cycle. The oxygen carriers with suitable oxidation ability are selected, in the process of pollution gas treatment, NOx is not generated, SO2 can be captured, the treatment conditions are easy to control, and the device and the method are more suitable for practical application.
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Description

technical field

[0001] The invention relates to a gas treatment system, in particular to a treatment system and method for polluted gas based on the principle of chemical loop combustion. Background technique

[0002] In people's daily production and life, many polluting gases will be produced, such as waste gas from industrial production, waste gas from spraying workshops, and odor from landfills. There are many types of harmful components in these waste gases, mainly including H 2 S, sulfur compounds such as methyl mercaptan, NH 3 And amines such as trimethylamine and butylenediamine, various volatile organic compounds (VOCs) gases such as "triphenyl" and formaldehyde, etc. These polluting gases will bother the lives of nearby residents, and also cause adverse effects on the environment such as photochemical smog, acid rain, and greenhouse effect. Therefore, the research and development of efficient polluting gas treatment systems has always been a research hotspot. [0...

Claims

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