Method and equipment for treating VOCs by utilizing flue gas

A flue gas treatment and gas technology, applied in the field of using flue gas to treat VOCs gas, can solve the problems of long construction period, large equipment volume, large energy consumption, etc., and achieve the effect of simple method and low cost

Pending Publication Date: 2020-07-03
启明星宇节能科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

High investment, high energy consumption, large equipment volume, and long construction period
[0004] It can be seen that the above t

Method used

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  • Method and equipment for treating VOCs by utilizing flue gas

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Embodiment

[0063] refer to figure 1 As shown, the top inlet of pre-reaction tank 10 is provided with cupola flue gas pipeline 101 and incinerator flue gas pipeline 102 side by side, and the diameter of incinerator flue gas pipeline 102 is 2 times of cupola flue gas pipeline 101 diameters, two times Two pipes extend into the pre-reaction tank 10 at the same time, so that the cupola flue gas and the incineration solidification furnace flue gas enter the pre-reaction tank 10 with a volume ratio of 1:2 and fully mix, and chemical reactions occur, and sulfur dioxide is respectively mixed with formaldehyde, Phenol and methane total hydrocarbons react to generate respectively hydroxymethanesulfonic acid, carbolic acid (acid) and sodium sulfite and carbon dioxide, nitrogen, nitric oxide, nitrogen dioxide and methane total hydrocarbons to generate nitrogen and water respectively, and the cross-sectional area of ​​the pre-reaction tank 10 It is twice the sum of the cross-sectional areas of the cup...

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Abstract

The invention provides a method and equipment for treating VOCs (volatile organic compounds) by utilizing flue gas. The method comprises the following steps: mixing cupola furnace flue gas and incinerator flue gas according to a volume ratio of 1: (1.8-3), carrying out reactions, adding a desulfurizing agent, preferably inorganic alkali, and keeping on reactions. According to the method for treating VOCs, SO2, NOX and other components in the cupola furnace flue gas react with HCHO, C6H5-OH, CH4 and other components in the incinerator flue gas; the components are all converted into harmless products; VOCs gas and toxic gas containing nitrogen and sulfur are scientifically treated at the same time, the method is low in operation cost, easy and convenient to operate and good in treatment effect, and products with high additional values can be generated and recycled.

Description

technical field [0001] The invention relates to the field of flue gas treatment in the thermal insulation material industry, in particular to a method and equipment for treating VOCs gas with flue gas. Background technique [0002] The flue gas emission in the thermal insulation material industry is mainly composed of two parts: one is the flue gas from the cupola melting ore, and the other is the flue gas from the incinerator of the thermal insulation material curing production line and the cotton collection production line. The chemical composition of the flue gas in these two parts is different. Yes, the components of cupola flue gas from melting ore are mainly soot particles, sulfur dioxide, and nitrogen oxides. The main chemical components of the incinerator flue gas in the thermal insulation material curing production line and the cotton collection production line are formaldehyde, phenol, and methane total hydrocarbons (VOCs). [0003] In the prior art, cupola flue g...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/76B01D53/60B01D53/72B01D53/50B01D53/56
CPCB01D53/50B01D53/502B01D53/56B01D53/60B01D53/72B01D53/75B01D53/76B01D2251/304B01D2251/306B01D2251/402B01D2251/604B01D2257/7025B01D2257/706B01D2258/0283B01D2258/0291Y02C20/20Y02A50/20
Inventor 张久明
Owner 启明星宇节能科技股份有限公司
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