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Volatile organic compound treatment device and method

A technology for volatile organic compounds and treatment devices, which is applied in separation methods, chemical instruments and methods, and separation of dispersed particles. It can solve the problems of substandard waste gas, insufficient, secondary pollution, etc., and reduce treatment costs and production costs. , the effect of high degree of automation

Pending Publication Date: 2019-05-31
HUBEI TAISHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to condensation recovery and adsorption recovery technology, the condensation absorption efficiency is low, and the waste gas from the absorption tower still has the problem of substandard, while the incineration technology is easy to cause waste of resources and insufficient combustion can easily cause secondary pollution

Method used

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  • Volatile organic compound treatment device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A volatile organic compound treatment device, including an adsorption tank 1, an induced draft fan 2, a cyclone separator 3, a packed absorption tower 4, a primary condenser 5, a packed tower spray absorption pump 6, a primary preheater 7, and a secondary Condenser 8, rectification tower extraction pump 9, tail gas primary condenser 10, tail gas secondary condenser 11, rectification tower 12, tail gas receiving tank 13, secondary preheater 14, adsorption tank 1 via induced draft fan 2 Connect with the cyclone separator 3, the cyclone separator 3 is connected with the packing absorption tower 4, the filler in the packing absorption tower is high-efficiency activated carbon or high-efficiency molecular sieve; the bottom of the packing absorption tower 4 is sprayed with the absorption pump 6 and the primary The preheater 7 is connected; the primary preheater 7 is connected with the exhaust gas primary condenser 10, and the exhaust gas primary condenser 10 is connected with ...

Embodiment 2

[0041] Taking methanol used for extraction in the production of glycine as an example, add water to the packed absorption tower, control the liquid level of the absorption tower to 0.6m, turn on the spray absorption pump of the packed tower, cool down part of the water in the primary condenser to 10°C for self-circulation, and part of the water The water (enriched liquid) is heated up to 50°C through the first-stage preheater, the first-stage tail gas condenser, and the second-stage preheater to the rectification tower in turn, and the flow rate of the rectification tower is controlled to be 2m 3 / h. Turn on the induced draft fan to pump methanol gas. After the gas is processed by the packed absorption tower and the cyclone separator, it goes to the adsorption tower equipped with activated carbon to absorb and then the high tower is emptied; First use steam to heat up to 100°C for analysis, and then use air to cool down to 26°C for standby. The entire analysis process takes 6 ...

Embodiment 3

[0043] Taking methanol used for extraction in the production of glycine as an example, add water to the packed absorption tower, control the liquid level of the absorption tower to 0.8m, turn on the spray absorption pump of the packed tower, cool down part of the water to the primary condenser to 7°C for self-circulation, and part of the water The water (enriched liquid) is heated up to 55°C through the first-stage preheater, the first-stage tail gas condenser, and the second-stage preheater to the rectification tower in turn, and the flow rate of the rectification tower is controlled to be 3m 3 / h. Turn on the induced draft fan to pump methanol gas. After the gas is processed by the packed absorption tower and the cyclone separator, it goes to the adsorption tower equipped with activated carbon to absorb and then the high tower is emptied; First use steam to heat up to 100°C for analysis, and then use air to cool down to 24°C for standby. The entire analysis process takes 8 h...

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Abstract

The invention relates to a volatile organic compound treatment device and method. An adsorption tank is connected with a cyclone separator through an induced draft fan, and the cyclone separator is connected with a packing absorbing column; the bottom of the packing absorbing column is connected with a first-level pre-heater through a packing column spray absorbing pump; the first-level pre-heateris connected with a tail gas first-level condenser, and the tail gas first-level condenser is connected with a second-level pre-heater; the second-level pre-heater is connected with a rectifying column, and the bottom of the rectifying column is connected to a discharge tank. The method comprises the specific steps that VOCs are conveyed into the packing absorbing column by the induced draft fanto be sprayed and absorbed by using an absorption liquid, not completely absorbed VOCs are absorbed by the absorbing column filled with an adsorption packing and then subjected to high-column emptying, the absorbed absorption liquid is analyzed by the rectifying column and then returns to the absorbing column, and the rectified VOCs components are used for production. The method has the advantagesthat recycling of the VOCs can be achieved, and the clean discharge of the tail gas VOCs is achieved; the equipment investment is small, energy conservation and environment protection are achieved, and the method is suitable for a recovery process of the volatile organic compounds.

Description

technical field [0001] The invention relates to a volatile organic compound treatment device, in particular to a volatile organic compound recovery and treatment device. Background technique [0002] Because most volatile organic compounds (VOCs) are important precursors that cause urban haze, atmospheric ozone layer pollution and photochemical smog, and are toxic, irritating, teratogenic and carcinogenic. Therefore, the country has issued relevant laws and regulations to limit the emission of VOCs. At present, the VOCs treatment technologies mainly include condensation recovery, adsorption recovery and incineration. Due to the condensation recovery and adsorption recovery technology, the condensation absorption efficiency is low, and the waste gas from the absorption tower still has the problem of substandard, while the incineration technology is easy to cause waste of resources and insufficient combustion can easily cause secondary pollution. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D53/02B01D53/14B01D53/18
CPCY02A50/20
Inventor 覃华龙彭春雪郝晓斌刘三六马万志余义明喻飞张凯
Owner HUBEI TAISHENG CHEM
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