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Method for degrading VOCs (Volatile Organic Compounds) tail gas of butanol and octanol device by utilizing separated bio-trickling filter

A bio-trickling filter tower and separation technology are applied in the field of degrading VOCs tail gas of a butanol-octanol device by using a separate bio-trickling filter tower, which can solve the problems of producing secondary pollutants and increasing the cost of enterprises, avoiding excessive consumption, The effect of reducing production and spraying time

Pending Publication Date: 2022-07-22
TIANJIN BOHUA YONGLI CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increase business costs and produce secondary pollutants

Method used

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  • Method for degrading VOCs (Volatile Organic Compounds) tail gas of butanol and octanol device by utilizing separated bio-trickling filter
  • Method for degrading VOCs (Volatile Organic Compounds) tail gas of butanol and octanol device by utilizing separated bio-trickling filter
  • Method for degrading VOCs (Volatile Organic Compounds) tail gas of butanol and octanol device by utilizing separated bio-trickling filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The tail gas of the isobutyraldehyde storage tank TK08512A / B of Bohua Yongli's butyryl 1# unit was used as the source of VOCs in the method of degrading the VOCs tail gas of the butyryl-octanol unit by using a separate biological trickling filter tower. The specific process of the method in the present embodiment is as follows:

[0051] The activated sludge is filtered to obtain a clear liquid containing bacteria, and the clear liquid containing bacteria is used for inoculation and cultivation of the seed liquid. The seed solution was inoculated into a container with fresh nutrient solution at a ratio of 10%, and the container was placed in a water bath shaker for culture and acclimation; the seed solution was supplemented into the container in the water bath shaker at a ratio of 10% every 3 days. Isobutyraldehyde served as the sole source of carbon and energy during domestication.

[0052] Described fresh nutrient solution composition is: 9.25g / L K 2 HPO 4 , 2.88g / L...

Embodiment 2

[0058] The tail gas of the n-butanol storage tank TK08506A of Bohua Yongli's butanol-octanol 1# plant was used as the source of VOCs in the method of degrading the VOCs tail gas of the butanol-octanol plant using a separate biological trickling filter tower. The specific operation process of the method in the present embodiment is as follows:

[0059] The activated sludge is filtered to obtain a clear liquid containing bacteria, and the clear liquid containing bacteria is used for inoculation and cultivation of the seed liquid. The seed solution was inoculated into a container with fresh nutrient solution at a ratio of 20%, and the container was placed in a water-bath shaker for culturing; the seed solution was supplemented at a ratio of 20% to the container in the water-bath shaker every 3 days. n-Butanol was used as the sole carbon and energy source during domestication.

[0060] Described fresh nutrient solution composition is: 9.25g / L K 2 HPO 4 , 2.88g / L KH 2 PO 4 , 0...

Embodiment 3

[0066] The unqualified octanol storage tank TK08509A / B tail gas of Bohua Yongli's butanol-octanol 1# device is used as the source of VOCs in the method of the present invention for degrading the VOCs tail gas of the butanol-octanol device by using a separate biological trickling filter tower. The specific operation process of the method in the present embodiment is as follows:

[0067] The activated sludge is filtered to obtain a clear liquid containing bacteria, and the clear liquid containing bacteria is used for inoculation and cultivation of the seed liquid. The seed liquid was inoculated into a container with fresh nutrient solution at a ratio of 25%, and the container was placed in a water bath shaker for cultivation and acclimation; the seed liquid was supplemented with a ratio of 25% to the container in the water bath shaker every 3 days. Octanol was used as the sole carbon and energy source during domestication.

[0068] Described fresh nutrient solution composition ...

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Abstract

The invention discloses a method for degrading VOCs (Volatile Organic Compounds) tail gas of a butanol and octanol device by utilizing a separated bio-trickling filter. The method comprises the following steps: domesticating microorganisms, inoculating domesticated special microorganism bacterial liquid to construct a bio-trickling filter membrane system, and stably and efficiently removing VOCs under proper operation conditions. The VOCs tail gas of the butanol and octanol device is treated by utilizing microorganisms and the separated bio-trickling filter, and the method has the advantages of being more environment-friendly, low in energy consumption, sustainable and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of industrial waste gas treatment, and more particularly, to a method for degrading VOCs tail gas of a butanol-octanol device by utilizing a separation-type biological trickling filter tower. Background technique [0002] Tianjin Bohua Yongli Chemical Co., Ltd. has two sets of butanol-octanol production units, using Davy's low-pressure oxo synthesis technology. Purchased propylene and self-produced syngas (CO+H 2 ) as raw material, through propylene and synthesis gas purification, oxo synthesis, butyraldehyde condensation, butyraldehyde and octenal hydrogenation, butanol rectification, water stripping and other procedures to obtain products n-butanol, octanol, isobutyraldehyde, etc. . The current annual production capacity is 500,000 tons. Process off-gases are generated in several places throughout the process flow. Especially in the accident pool and tank farm, the main components are Volatile Organic ...

Claims

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Application Information

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IPC IPC(8): B01D53/84B01D53/44
CPCB01D53/84B01D53/44B01D53/346B01D2251/95B01D2257/708Y02A50/20
Inventor 谢智勇齐崴朱彤尤生萍张波殷庆典李治水顾涛苗淳苏荣欣李满枝
Owner TIANJIN BOHUA YONGLI CHEM IND
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