Organic waste gas adsorbent and preparation method thereof

An organic waste gas and adsorbent technology, applied in separation methods, chemical instruments and methods, gas treatment and other directions, can solve the problems of difficult promotion and use, high cost of matrix molecular sieves, and unfavorable recovery of organic waste gas, etc. low effect

Active Publication Date: 2022-06-07
PINGXIANG HUAXING ENVIRONMENTAL PROTECTION ENG TECH CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Modifying the adsorbent is currently the main way to improve the adsorption capacity of the adsorbent. For example, the Chinese patent application CN2014100758635 discloses an organic waste gas adsorption purifier, which uses Y-type zeolite as a carrier and supports copper oxide and oxyferric chloride. Modification of the zeolite carrier, and the use of copper oxide and oxyferric chloride for catalysis is not conducive to the recovery of organic waste gas; Chinese patent application CN2013103737458 discloses a mesoporous molecular sieve adsorbent modified by organic resin, with mesoporous Molecular sieve is the skeleton material, polymeric organic resin polymerized monomer is the modified material, and the polymerized monomer is introduced into the inner and outer surfaces of mesoporous molecular sieve to achieve modification. The cost of the matrix molecular sieve is high, it is difficult to promote and use, and the crystallization preparation process is relatively complicated.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Organic waste gas adsorbent and preparation method thereof
  • Organic waste gas adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The invention provides an organic waste gas adsorbent, which comprises a carrier active semi-coke and a load of divinylbenzene, wherein the mass of the active semi-coke accounts for 90% of the total mass of the adsorbent, and the mass of divinylbenzene accounts for 90% of the total mass of the adsorbent. The percentage is 10%.

[0018] The method for preparing the organic waste gas adsorbent comprises the following steps:

[0019] S1. The raw material semi-coke and water are mixed in a mass ratio of 1:4, put into a high-pressure reactor for heating and activation for 2.5 hours, the pressure during heating is 6.5 MPa, and the temperature is 300 ° C. The method of heating and activation by steam can open the interior of the semi-coke. The pores are blocked, and the water vapor reacts with the carbon in the semi-coke to further expand the pores. In addition, the above-mentioned activation parameters, i.e. activation time, pressure and temperature, cooperate with each other...

Embodiment 2

[0024] The invention provides an organic waste gas adsorbent, which comprises a carrier active semi-coke and a load of divinylbenzene, wherein the mass of the active semi-coke accounts for 95% of the total mass of the adsorbent, and the mass of divinylbenzene accounts for 95% of the total mass of the adsorbent. The percentage is 5%.

[0025] The method for preparing the organic waste gas adsorbent comprises the following steps:

[0026] S1. The raw material semi-coke and water are mixed in a mass ratio of 1:4, put into a high-pressure reaction kettle for heating and activation for 3 hours, the pressure during heating is 7MPa, and the temperature is 280 °C. The pores, and the water vapor reacts with the carbon in the semi-coke to further expand the pores. In addition, the above-mentioned activation parameters, i.e. activation time, pressure, and temperature, cooperate with each other to control the collapse of 3-4% of the pore walls in the semi-coke pores to connect part of the...

Embodiment 3

[0031] The invention provides an organic waste gas adsorbent, which comprises a carrier active semi-coke and a load of divinylbenzene, wherein the mass of the active semi-coke accounts for 88% of the total mass of the adsorbent, and the mass of divinylbenzene accounts for 88% of the total mass of the adsorbent. The percentage is 12%.

[0032] The method for preparing the organic waste gas adsorbent comprises the following steps:

[0033] S1. The raw material semi-coke and water are mixed in a mass ratio of 1:4, put into a high-pressure reactor for heating and activation for 2.5 hours, the pressure during heating is 6.5 MPa, and the temperature is 300 ° C. The method of heating and activation by steam can open the interior of the semi-coke. The pores are blocked, and the water vapor reacts with the carbon in the semi-coke to further expand the pores. In addition, the above-mentioned activation parameters, i.e. activation time, pressure, and temperature, cooperate with each othe...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an organic waste gas adsorbent, which comprises active semi-coke as a carrier and divinylbenzene as a load, wherein the mass of active semi-coke accounts for 88-95% of the total mass of the adsorbent, and the mass of divinylbenzene accounts for 88% to 95% of the total mass of the adsorbent. The percentage of the total mass is 5-12%. The organic waste gas adsorbent loaded with divinylbenzene is obtained by impregnating the coupling agent and divinylbenzene with active semi-coke. The present invention uses activated semi-coke as a carrier, which has sufficient channels and low cost. Divinylbenzene is loaded by layer-by-layer assembly, and divinylbenzene is loaded on the inner and outer surfaces of the active semi-coke channels. Divinylbenzene not only serves as the supply part The strength support of the active semi-coke carrier. In addition, divinylbenzene can not only be used as an adsorption center after being carried on the active semi-coke, but also can act like a solvent to dissolve organic waste gas in the divinylbenzene layer.

Description

technical field [0001] The present invention relates to an organic waste gas adsorbent, in particular to an active coke adsorbent, and to a preparation method thereof. Background technique [0002] The development of petrochemical, steel and other industries has further promoted the development of the coking industry. With the increasing awareness of environmental protection and the stricter legal system, the waste gas treatment of the coking industry is becoming more and more important. Coking waste gas is mainly divided into organic waste gas (VOCs) and inorganic waste gas. Among them, organic waste gas treatment methods include non-destructive methods, destructive methods and biological treatment methods. At present, petrochemical enterprises use adsorption-desorption methods in non-destructive methods. The most important factor in the adsorption-desorption method is the adsorbent. The commonly used adsorbents mainly include molecular sieve, activated carbon (granular) an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30B01D53/02
CPCB01J20/22B01J20/20B01D53/02B01D2257/708Y02A50/20
Inventor 李绍明李波余仁生李斌
Owner PINGXIANG HUAXING ENVIRONMENTAL PROTECTION ENG TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products