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Cartap workshop exhaust gas treatment method

A workshop exhaust gas and treatment method technology, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of thorough absorption and purification of non-volatile organic matter, and achieve the goal of simplifying the exhaust gas treatment process, reducing labor operations, and reducing pollution Effect

Inactive Publication Date: 2018-03-16
ANHUI HUAXING CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited to the operation and operation characteristics of some sections of the site, the volatile organic compounds cannot be completely absorbed and purified, and further treatment is required

Method used

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  • Cartap workshop exhaust gas treatment method
  • Cartap workshop exhaust gas treatment method
  • Cartap workshop exhaust gas treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for treating waste gas in a cartap workshop:

[0037] Technical problem to be solved by the present invention adopts following technical scheme to realize:

[0038] (1) Tail gas containing dichloroethane is first washed with 2-stage alkali, then washed with water, demisted, pre-treated, and then treated with 3 boxes of 6-core 2-stage activated carbon fiber treatment devices; finally, the exhaust gas is combined into photocatalysis Oxidation device;

[0039] (2) The comprehensive tail gas is first treated with an alkali washing tower, then a water absorption tower, and then 3 boxes of 2-stage activated carbon particle adsorption equipment for treatment;

[0040] (3) Allyl chloride is first condensed with cold brine, and then the equipment is comprehensively treated; finally, the exhaust gas enters the photocatalytic oxidation device;

[0041] (4) Dimethylamine and allylamine tail gas are first treated with original acid absorption equipment, then water washing...

Embodiment 2

[0060] A method for treating waste gas in a cartap workshop:

[0061] Technical problem to be solved by the present invention adopts following technical scheme to realize:

[0062] (1) Tail gas containing dichloroethane is first washed with 2-stage alkali, then washed with water, demisted, pre-treated, and then treated with 3 boxes of 6-core 2-stage activated carbon fiber treatment devices; finally, the exhaust gas is combined into photocatalysis Oxidation device;

[0063] (2) The comprehensive tail gas is first treated with an alkali washing tower, then a water absorption tower, and then 3 boxes of 2-stage activated carbon particle adsorption equipment for treatment;

[0064] (3) Allyl chloride is first condensed with cold brine, and then the equipment is comprehensively treated; finally, the exhaust gas enters the photocatalytic oxidation device;

[0065] (4) Dimethylamine and allylamine tail gas are first treated with original acid absorption equipment, then water washing...

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Abstract

The invention discloses a cartap workshop exhaust gas treatment method, and relates to the technical field of exhaust gas treatment. Dichloroethane-containing tail gas is treated with a three-box andsix-core active carbon fiber adsorption treatment device; comprehensive tail gas is treated through alkali washing, a water absorption tower and a three-box two-stage active carbon particle adsorptiontreatment device; the tail gas undergoes flash evaporation drying through a two-stage absorption tower and a two-box active carbon particle adsorption device; dimethylamine undergoes acid recovery, and then enters water washing and alkali washing tower treatment together with hydrochloric acid; and above obtained device products are mixed, then enter a photocatalytic oxidation device, and undergotreatment. The method improves the exhaust gas treatment from a clean production technology, so exhaust gas pollutants are reduced from the source; unitization and pertinent optimization of the exhaust gas treatment devices simplify the exhaust gas treatment process, reduce labor and reduce the economic investment; and exhaust gas generated during cartap production can be discharged into air after being treated, so the pollution is reduced.

Description

Technical field: [0001] The invention relates to the technical field of waste gas treatment, in particular to a method for treating waste gas in a cartap workshop. Background technique: [0002] The waste gas from the operating posts in each section of the monosultap and cartap workshop contains dichloroethane, methanol, hydrochloric acid, allyl chloride, dimethylamine, and the total amount of mixed gas waste gas is 55,000m 3 / h. [0003] Contains dichloroethane, methanol, hydrochloric acid, the total air volume of the mixed gas is 6196m 3 / h (including the amount of dichloroethane in the vacuum pool), the estimated maximum amount of the insecticide workshop is about 340kg / day, the estimated maximum amount of the cartap workshop is about 1240kg / day, and the estimated maximum amount of the total amount is 1580kg / day. According to engineering experience, it is estimated that the maximum recovery amount of dichloroethane contained in the tail gas is 600kg / day, and the recover...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/68B01D47/06B01D47/12B01D53/75B01D53/18B01D53/14B01D50/00B01D53/26B01D53/04B01D53/00B01D53/86
CPCB01D47/06B01D47/12B01D50/00B01D53/007B01D53/04B01D53/1406B01D53/1487B01D53/18B01D53/261B01D53/68B01D53/75B01D53/78B01D53/86B01D2253/102B01D2258/02B01D2259/804
Inventor 李霞金奎王玉贵汪志稳李平赵龙凯
Owner ANHUI HUAXING CHEM IND CO LTD
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