Treating process for multiple exhaust gases

A technology for treating process and industrial waste gas, which is applied in gas treatment, separation methods, nitrogen oxides/oxygen-containing acids, etc., can solve the problems of potential environmental impact, immature core technology, and increased energy cost Secondary pollution, low operating cost and low investment

Pending Publication Date: 2018-09-07
SHANGHAI JINGTIAN EP TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] 1) The cost of energy consumption has increased significantly
[0006] 2) The core technology is not yet mature
[0007] 3) Lar

Method used

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  • Treating process for multiple exhaust gases

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Experimental program
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Embodiment Construction

[0014] A variety of waste gases 1 are introduced into the absorption reactor 3 in the waste gas treatment device 2 , the ammonia reagent 4 is introduced, and the reacted liquid substances are collected in the rich liquid pool 5 .

[0015] The metal oxide 6 is introduced into the rich solution pool 5 and mixed with a stirrer 7 . The mixed slurry is sent to the solid-liquid separation device 8 .

[0016] The separated ammonia-containing liquid is sent to the first absorption reactor 3 together with the amino reagent 4 through the pump 9 and the pipeline 10; the separated carbon-containing compound 11 solid is dried, packaged and sold.

[0017] The purified waste gas 12 enters an oxidation reactor 13 and passes through a strong oxidant 14 . The exhaust gas enters the second absorption reactor 15 again, and passes through the alkaline liquid 16, and the neutralization reactant flows into the solid-liquid separation device 17. The nitrogen-containing compound solid 18 is dried, p...

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Abstract

The invention provides a treating process for a plurality of exhaust gases. The process comprises the following steps: with an amino reagent as a carbon scavenger, subjecting a termination substance to a displacement reaction in virtue of a metal oxide, wherein separated ammonia-containing liquid is recycled, and a removed compound solid is used as an industrial raw material; and then oxidizing exhaust gases with a strong oxidant and then carrying out absorption with alkaline substances so as to form nitrites. Thus, the treating process achieves the purposes of decarbonization, desulfurization, denitrification, dechlorination, defluorination, mercury removal, dioxin removal and deodorization the exhaust gases in one shot.

Description

technical field [0001] The invention relates to the technical field of environmental protection technology for the treatment of waste gas discharged from industrial boilers, kilns and chemical industries. Background technique [0002] Sulfur dioxide (chemical formula: SO 2 ) is one of the main air pollutants. Since coal and petroleum typically contain sulfur compounds, sulfur dioxide is formed when burned. When sulfur dioxide dissolves in water, it forms sulfurous acid (the main component of acid rain). It will cause great harm to human health, reduce the production of agriculture and animal husbandry, and cause serious corrosion and aging of industrial buildings. [0003] The greenhouse effect has attracted widespread attention from the international community. Fossil fuel combustion is the largest source of air pollution, and it is also the source of CO 2 major source of greenhouse gases. According to the International Energy Agency (IEA), if decisive action is not ta...

Claims

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Application Information

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IPC IPC(8): B01D53/62B01D53/50B01D53/68B01D53/56B01D53/75B01D53/78B01D53/76C01B21/50
CPCB01D53/502B01D53/56B01D53/62B01D53/68B01D53/75C01B21/50B01D2251/604B01D2251/404B01D2251/2062B01D2251/108B01D2258/0283B01D2259/122B01D2259/124B01D2257/504B01D2257/2045B01D2257/2047B01D2258/02
Inventor 李湘忠
Owner SHANGHAI JINGTIAN EP TECH CO LTD
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