Method for treating organic matters in large-capacity industrial waste gas

A technology for industrial waste gas and organic matter, applied in separation methods, chemical instruments and methods, and separation of dispersed particles, which can solve problems such as increasing the processing load of organic waste gas treatment systems, increasing system construction costs, and increasing the number of auxiliary equipment, etc., to reduce system waste. The failure rate, saving transformation investment, and realizing the effect of continuous adsorption

Active Publication Date: 2012-08-15
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0008] The above method shows some advantages compared with traditional treatment methods when dealing with organic gases in atmospheric volume, but in the desorption after adsorption and concentration, Both use the hot gas after burning the enriched gas as the In order to desorb the gas, although the heat energy generated by combustion is effectively used to a certain extent, the whole treatment system In general, the amount of gas to be processed is increased, compared with the use of external hot gas, the adsorption-desorption process is single The amount of gas treated by the bit-volume adsorbent is comparable to
Not only increases the number of auxiliary equipment, but also increases the processing load of the organic waste gas treatment system, which ultimately makes the system operation process complicated, high operating costs, and increases the system construction cost

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  • Method for treating organic matters in large-capacity industrial waste gas
  • Method for treating organic matters in large-capacity industrial waste gas

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Embodiment Construction

[0029] The invention will be described in detail below in conjunction with the drawings and examples, which do not limit the invention in any way. In this example, the purification treatment of oxidized industrial waste gas in the production of terephthalic acid (PTA) is taken as an example to illustrate. Its process is as follows figure 1 with figure 2 shown.

[0030] The main components of PTA oxidation waste gas are nitrogen, oxygen, carbon dioxide, carbon monoxide, methyl acetate, benzene, p-xylene, toluene, methyl bromide, acetic acid, and water. Usually, the operating pressure of the production system is about 10atm, and the temperature is about 110°C. . The concentrations of benzene, p-xylene, toluene and methyl bromide in the waste gas are respectively 20-100 mg / m 3 , are toxic carcinogens, easy to cause great harm to the human body, and need to be dealt with.

[0031] Such as figure 1 As shown, first, the waste gas 111 produced by oxidation is washed 11 by a ...

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Abstract

The invention relates to a method for treating organic matters in large-capacity industrial waste gas, mainly solving the problems of large capacity, difficult treatment and difficult energy recovery of the large-capacity industrial waste gas in the prior art. Industrial tail gas is treated by washing and does work by expanding; the gas after doing work enters an adsorption bed for carrying out adsorption treatment and desorption treatment, the gas subjected to desorption is carried out catalytic combustion under the existence of a catalyst, and the combusted industrial waste gas is treated by alkali washing to remove a halogen containing compound contained in the tail gas, therefore, the invention better solves the problems and can be used for treating waste gas generated by industrial production.

Description

technical field [0001] The invention relates to a method for treating organic matter in industrial waste gas, especially for treating organic matter with a concentration of 20-999 mg / m 3 industrial waste gas. Background technique [0002] The generation of organic pollutants, especially volatile organic compounds, is mainly due to emissions from petroleum processing, chemical product production, coal processing, and volatilization during the application of organic chemical products. Most of the volatile organic compounds are toxic, and some are carcinogenic. Under sunlight, organic compounds combine with nitrogen oxides in the atmosphere to form photochemical smog, which will endanger human health and biological growth. Halogenated hydrocarbons can also destroy The ozone layer in the atmosphere threatens the human living environment. For the treatment of organic waste gas, some mature technologies have been developed. The principle of treatment is generally to control and ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02B01D53/75B01D53/72
Inventor 刘建新刘波沈品德朱伟陈绍辉
Owner CHINA PETROLEUM & CHEM CORP
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