Reaction type VOCs absorbent

An absorbent and reactive technology, which is applied in the field of reactive VOCs absorbents, can solve the problems of reducing VOCs to zero, difficult absorption liquid treatment, and low absorption rate, and achieves good absorption rate, good solubility, and simple preparation. Effect

Inactive Publication Date: 2017-04-19
千藤(南京)环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, high-boiling-point organic solvents cannot reduce VOCs to zero because they are volatile. If they encounter high temperatures, the absorption rate will be lower and may cause secondary pollution.
Water composite absorbents generally include water-mineral oil, water-surfactant-auxiliary and other absorbents, which are low in cost and have a good absorption effect on benzene-based organic waste gases, but poor on other VOCs, and the absorption liquid Subsequent processing is difficult

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A reactive VOCs exhaust gas absorbent, comprising the following components in terms of mass percentage: Tween 20 0.2%, castor oil sodium sulfonate 0.1%, sodium carbonate 0.5%, 2-imidazolidinone 0.5%, and the rest is water . Purification effect: The absorption rate of benzene is 89%, the absorption rate of p-xylene is as high as 92%, the absorption rate of toluene is as high as 95%, and the absorption rate of total VOCs is as high as 85%.

Embodiment 2

[0030] A reactive VOCs exhaust gas absorbent, comprising the following components in terms of mass percentage: Tween 80 0.3%, sodium citrate 0.5%, potassium carbonate 0.5%, cysteine ​​hydrochloride 0.5%, and the rest is water . Purification effect: The absorption rate of benzene is 90%, the absorption rate of p-xylene is as high as 93%, the absorption rate of toluene is as high as 96%, and the absorption rate of total VOCs is as high as 89%.

Embodiment 3

[0032] A reactive VOCs exhaust gas absorbent, comprising the following components in terms of mass percentage: 0.2% of alkyl glycoside, 0.5% of sodium metasilicate, 0.5% of sodium chloride, 1% of acetylhydrazide, and the rest is water. Purification effect: The absorption rate of benzene is 89%, the absorption rate of p-xylene is as high as 90%, the absorption rate of toluene is as high as 93%, and the absorption rate of total VOCs is as high as 87%.

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PUM

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Abstract

The invention discloses a reaction type VOCs absorbent. The reaction type VOCs absorbent comprises the following components by mass percent: 92% to 97% of water, 0.2% to 1% of a surfactant, 0.5% to 1% of inorganic salt and 0.2% to 1% of an organic matter decomposing agent, wherein the surfactant is at least one in castor oil sodium sulfonate, sodium sulpho methyl stearate, Tween 20, Tween 80, alkyl glycoside, sodium citrate and sodium dodecyl benzene sulfonate; inorganic salt is at least one in sodium carbonate, potassium carbonate, sodium metasilicate, sodium chloride, potassium chloride and ammonium chloride; and the organic matter decomposing agent is at least one in cysteine hydrochloride, arginine, lysine, histidine, 2-imidazolidone, acethydrazide and adipic dihydrazide. The reaction type VOCs absorbent has the advantages that multiple components in VOCs can be treated at the same time, the removing efficiency for volatile organic matters is high, the organic matter decomposing agent in the components of the absorbent can degrade organic exhaust gas into CO2 and water or other micromolecules, the raw materials are wide in source, the cost is low, and follow-up treatment is simple.

Description

technical field [0001] The invention belongs to the technical field of air pollution control, in particular to a reactive VOCs absorbent. Background technique [0002] The problem of air pollution is one of the most concerned hot spots in today's society. Volatile organic waste gases (VOCs) are an important source of air pollution, including benzene series, organic chlorides, Freon series, organic ketones, amines, alcohols, ethers, esters, acids and petroleum hydrocarbon compounds. They come from a wide range of sources, mainly from fuel combustion, industrial waste gas from transportation, vehicle exhaust and photochemical pollution; at the same time, some come from interior decoration processes, such as paints, coatings and adhesives. Since most VOCs have "three causes" (carcinogenic, teratogenic, mutagenic) effects and genotoxicity, they directly endanger the health of humans and other organisms. Therefore, the country has strict control requirements for VOCs emissions....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/79B01D53/44
CPCB01D53/44B01D53/79B01D2257/708Y02A50/20
Inventor 范士亮邹婧李猛吴振富刘凤彩
Owner 千藤(南京)环保科技有限公司
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