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A kind of triphenyl waste gas adsorption liquid and its application

A technology for adsorbing liquid and waste gas, applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve problems such as immature processes, and achieve the effects of improving the surrounding environment, increasing the absorption rate, and reducing relative volatility

Inactive Publication Date: 2017-05-17
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the main method for dealing with Freon is the combustion method. The shortcoming of this method is that its reaction mechanism needs to be further studied; the influence of temperature on the degree of decomposition during the reaction process, and whether secondary pollutants will be produced during the combustion process, etc. need to be further studied. In-depth research, the specific process is not yet mature

Method used

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  • A kind of triphenyl waste gas adsorption liquid and its application
  • A kind of triphenyl waste gas adsorption liquid and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The freon recovery solution in this embodiment adopts freon R22, freon R12, etc., which are commonly used in air conditioners and refrigerator refrigeration. Freon recovery solutions with different concentrations have different absorption effects on waste gas. The triphenyl waste gas adsorption liquid in this embodiment is Made as follows:

[0024] 1. The components and proportioning are: 18 parts by weight of emulsion, 1 part by weight of surfactant, 1 part by weight of sodium carboxymethylcellulose and 8000 parts by weight of water. The surfactant used in this embodiment is fatty acid glyceride;

[0025] 2. The production method is:

[0026] Step 1: Production of the emulsion: add Freon recovery solution and N-formylmorpholine in sequence in the reaction kettle according to the proportion, turn on the reaction kettle and stir, stir for 3 hours until completely dissolved, and form the FN-1 emulsion;

[0027] Step 2: Preparation of triphenyl waste gas adsorption liquid...

Embodiment 2

[0031] The difference between the triphenyl exhaust gas adsorption solution described in this implementation and Example 1 is that the Freon recovery solution in the emulsion: N-formylmorpholine=0.6:0.4, and the surfactant used is sucrose fatty acid ester. It is simulated in the laboratory, and its absorption effect is shown in Table 1.

Embodiment 3

[0033] The difference between the triphenyl waste gas adsorption liquid described in this implementation and Example 1 is that the Freon recovery liquid in the emulsion: N-formylmorpholine=0.7:0.3, the mixture of the surfactant fatty acid glyceride and sucrose fatty acid lipid used , the mass ratio of fatty acid glyceride to sucrose fatty acid lipid is 1:1. It is simulated in the laboratory, and its absorption effect is shown in Table 1.

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Abstract

The invention discloses an adsorption solution for a benzene-methylbenzene-xylene-including waste gas and application thereof. The adsorption solution comprises an emulsion, a surfactant, sodium carboxymethylcellulose and water. According to the adsorption solution for the benzene-methylbenzene-xylene-including waste gas, which is provided by the invention, the emulsion is used as a substance which mainly absorbs an arene waste gas; the adsorption solution for the benzene-methylbenzene-xylene-including waste gas has the characteristics of stable chemical property, no toxicity, no corrosiveness and the like; the secondary pollution cannot be brought while toxic and harmful substances are absorbed. Meanwhile, the absorptivity of the arene waste gas is greatly increased while a waste substance is reused by utilizing recycled freon; the relative volatility of arene can be greatly decreased after the arene is dissolved; the content of benzene, methylbenzene and xylene in the air is decreased to a relatively low extent; a factory and a surrounding environment of the factory are improved.

Description

technical field [0001] The invention relates to the field of triphenyl waste gas treatment, in particular to a triphenyl waste gas adsorption liquid and its application. Background technique [0002] Under the normal working conditions of the PX production plant, during the production and transportation process, the intermediate products or products of aromatic hydrocarbons are usually very volatile and may leak and produce toxic waste gas. Usually, a gas containing benzene, toluene and xylene is volatilized, referred to as triphenyl waste gas. [0003] Benzene is a product of coal tar distillation or petroleum cracking, a colorless, transparent liquid with an aromatic odor. Toluene and xylene are methyl derivatives of benzene. The EPA lists benzene, toluene, and xylene as priority pollutants, which are extremely toxic to various life forms. When the triphenyl exhaust gas in the factory diffuses to the surrounding residential areas, when inhaling high-concentration "triph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/14
Inventor 孟庆鹏朱棋黄蓉赵博涵罗钰程高杨永健王帅李宇亮
Owner CHANGAN UNIV
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