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Adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbon in coal tar as well as preparation method and application thereof

An adsorption resin and adsorption separation technology are applied to the adsorption resin for adsorption and separation of polycyclic aromatic hydrocarbons in coal tar and the field of preparation thereof, and can solve the problems that the separation of polycyclic aromatic hydrocarbons and alkanes cannot be realized, the separation energy consumption is large, and the hydrogen consumption is high. , to achieve the effect of low cost, simple preparation method and high degree of branching

Active Publication Date: 2019-05-28
SHAANXI YANCHANG PETROLEUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Separation of polycyclic aromatic hydrocarbons and alkanes cannot be achieved by solvent extraction
Chinese patent 201611266928.X discloses a method and device for producing single-ring aromatics by hydrogenation of full-fraction medium-low temperature coal tar. The whole fraction of medium-low temperature coal tar is used as raw material to undergo fractionation, the light phase is cracked and refined, and the heavy phase is carried out twice. A method and device for producing single-ring aromatics by hydrogenating cracked full-fraction medium-low temperature coal tar after cracking to realize hydrogenation of whole-fraction coal tar to produce single-ring aromatics such as benzene, toluene, xylene, etc. The hydrogen consumption is high, The formation height is high, and the subsequent separation consumes a lot of energy

Method used

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  • Adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbon in coal tar as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbons in coal tar, the raw material is composed of component A and component B, and the weight of component B is 0.5% of the weight of component A;

[0028] The component A, based on 100% by weight, is composed of the following raw materials: 3% hydrophobic monomer octadecyl perfluoroacrylate, 45% styrene, 25% N-methylpyrrolidone, 27% hydroxyethyl methacrylate %;

[0029] The component B is the initiator azobisisobutyronitrile.

[0030] The preparation method of described adsorption resin comprises the following steps:

[0031] (1) Mix component A and component B, put them into the autoclave, feed propane for 30 minutes to remove the air in the autoclave, and then seal the autoclave;

[0032] (2) Increase the pressure of the reactor to 3.2MPa for the first time, then raise the temperature to 98°C, then increase the pressure of the reactor to 4.2MPa for the second time, and then react for 3 hou...

Embodiment 2

[0036] An adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbons in coal tar, the raw material is composed of component A and component B, and the weight of component B is 0.5% of the weight of component A;

[0037] The component A, based on 100% by weight, is composed of the following raw materials: hydrophobic monomer behenyl perfluoroacrylate 5%, styrene 50%, N-methylpyrrolidone 30%, hydroxyethyl methacrylate 15%;

[0038] The component B is the initiator azobisisobutyronitrile.

[0039] The preparation method of described adsorption resin comprises the following steps:

[0040] (1) Mix component A and component B, put them into the autoclave, feed propane for 30 minutes to remove the air in the autoclave, and then seal the autoclave;

[0041] (2) Increase the pressure of the reactor to 3.2MPa for the first time, then raise the temperature to 108°C, then increase the pressure of the reactor to 4.5MPa for the second time, and then react for 3 hours ...

Embodiment 3

[0045] An adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbons in coal tar. The raw material is composed of component A and component B, and the weight of component B is 0.6% of the weight of component A;

[0046] The component A, based on 100% by weight, is composed of the following raw materials: 8% hydrophobic monomer behenyl perfluoroacrylate, 42% styrene, 25% N-methylpyrrolidone, hydroxyethyl methacrylate 25%;

[0047] The component B is the initiator azobisisobutyronitrile.

[0048] The preparation method of described adsorption resin comprises the following steps:

[0049] (1) Mix component A and component B, put them into the autoclave, feed propane for 30 minutes to remove the air in the autoclave, and then seal the autoclave;

[0050] (2) Increase the pressure of the reactor to 3.5MPa for the first time, then raise the temperature to 115°C, then increase the pressure of the reactor to 5.0MPa for the second time, and then react for 3 hours to...

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Abstract

The invention provides adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbon in coal tar. The adsorption resin is prepared from a component A and a component B, wherein the weight of the component B is 0.5 to 0.7 percent of the weight of the component A; the component A is prepared from the following raw materials according to the weight percent of 100 percent: 3 to 30 percent of a hydrophobic monomer, 30 to 50 percent of styrene, 15 to 30 percent of N-methylpyrrolidone and 10 to 28 percent of hydroxyethyl methacrylate; the component B is an initiator; the hydrophobic monomer is a fluorine-containing acrylate compound; the fluorine-containing acrylate compound is a fluorine-containing alkyl acrylate compound; the number of carbon atoms of alkyl is 18 to 30. Meanwhile, the invention further discloses a preparation method and application of the adsorption resin. The adsorption resin can realize an oriented adsorption effect on alkane and olefin in the coal tar andaromatic hydrocarbon in an aromatic hydrocarbon component, and still has relatively good structure stability and adsorption property at the temperature higher than 180 DEG C.

Description

technical field [0001] The invention belongs to the field of deep processing of coal tar, and in particular relates to an adsorption resin for adsorbing and separating polycyclic aromatic hydrocarbons in coal tar, its preparation method and application. Background technique [0002] Coal tar is a black or dark brown viscous liquid with pungent odor produced during coal pyrolysis, and it is also an important raw material as one of crude oil substitutes. Depending on the pyrolysis temperature and method, the following tars can be obtained: low-temperature (450-650°C) dry stream tar, low-temperature and medium-temperature (600-800°C) generator tar, medium-temperature (900-1000°C) vertical furnace tar, High-temperature (1000°C) coking tar; medium-low temperature coal tar is brown-black, with a small proportion, in which alkanes, olefins and aromatic hydrocarbons account for about 50%, and the content of phenols can reach about 30% (mainly higher phenols). The rest are composed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22B01J20/30B01J20/28C10G25/08
Inventor 杨东元王军峰扈广法孙育滨张玉娟
Owner SHAANXI YANCHANG PETROLEUM GRP
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