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Adsorption resin for adsorption and separation of polycyclic aromatic hydrocarbons in coal tar, preparation method and application thereof

An adsorption resin and adsorption separation technology, which is applied in the field of adsorption resin for adsorption and separation of polycyclic aromatic hydrocarbons in coal tar and its preparation, can solve the problems of inability to separate polycyclic aromatic hydrocarbons and alkanes, high energy consumption for separation, and high hydrogen consumption , to achieve the effect of low cost, simple preparation method and high degree of branching

Active Publication Date: 2021-09-14
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 adsorption and separation of polycyclic aromatic hydrocarbons in coal tar, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An adsorption separation coal tar Adsorption of polycyclic aromatic hydrocarbons, a feed component A and component B, 0.5% by weight of component B times the weight of component A;

[0028] The components A, according to 100% by weight basis from the following raw material composition: hydrophobic monomer perfluoro 3% stearyl acrylate, styrene 45%, N- methylpyrrolidone 25%, hydroxyethyl methacrylate 27 %;

[0029] The component B is azobisisobutyronitrile initiator.

[0030] The method of preparation of the adsorbent resin, comprising the steps of:

[0031] (1) The component A and component B are mixed, put into an autoclave, the autoclave 30min propane into air removal, and then sealed autoclave;

[0032] (2) The reactor pressure is first raised to 3.2MPa, then warmed to 98 ℃, and the reaction pressure was raised to the second 4.2MPa, and then the reaction 3h, to give a white powder;

[0033] (3) Step (2) obtained after the solid was triturated, extrusion pelletization of ...

Embodiment 2

[0036] An adsorption separation coal tar Adsorption of polycyclic aromatic hydrocarbons, a feed component A and component B, 0.5% by weight of component B times the weight of component A;

[0037] The components A, according to 100% by weight basis from the following raw material composition: hydrophobic monomer perfluoro lauryl acrylate 5% acrylic acid, styrene 50%, N- methylpyrrolidone 30%, hydroxyethyl methacrylate 15%;

[0038] The component B is azobisisobutyronitrile initiator.

[0039] The method of preparation of the adsorbent resin, comprising the steps of:

[0040] (1) The component A and component B are mixed, put into an autoclave, the autoclave 30min propane into air removal, and then sealed autoclave;

[0041] (2) The reactor pressure is first raised to 3.2MPa, and then heated to 108 ℃, and the reaction pressure was raised to the second 4.5MPa, and then the reaction 3h, to give a white powder;

[0042] (3) Step (2) obtained after the solid was triturated, extrusion p...

Embodiment 3

[0045] An adsorption separation coal tar Adsorption of polycyclic aromatic hydrocarbons, a feed component A and component B, 0.6 times the weight of component B by weight of component A;

[0046] The components A, according to 100% by weight basis from the following raw material composition: hydrophobic monomer perfluoro acrylate, stearyl acrylate 8%, styrene 42%, N- methylpyrrolidone 25%, hydroxyethyl methacrylate 25%;

[0047] The component B is azobisisobutyronitrile initiator.

[0048] The method of preparation of the adsorbent resin, comprising the steps of:

[0049] (1) The component A and component B are mixed, put into an autoclave, the autoclave 30min propane into air removal, and then sealed autoclave;

[0050] (2) The reactor pressure is first raised to 3.5MPa, and then heated to 115 ℃, and the reaction pressure was raised to the second 5.0MPa, and then the reaction 3h, to give a white powder;

[0051] (3) Step (2) obtained after the solid was triturated, extrusion pelle...

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Abstract

The invention provides 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%-0.7% of the weight of component A; the component A, based on 100% by weight, consists of the following raw materials: 3-30% hydrophobic monomer, 30-50% styrene, 15-30% N-methylpyrrolidone, 10-28% 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, and the number of carbon atoms of the alkyl group is 18‑30. At the same time, the invention also discloses the preparation method and application of the adsorption resin. The adsorption resin can realize the directional adsorption of alkanes, olefins and aromatics in the coal tar, and still has good structural stability and adsorption characteristics when the temperature is higher than 180°C.

Description

Technical field [0001] The present invention belongs to the field of deep processing of coal tar, coal tar particularly relates Adsorption of polycyclic aromatic hydrocarbons and their preparation method and application adsorption-separation. Background technique [0002] Coal tar is a liquid having a pungent odor, black or dark brown viscous pyrolysis generated during coal, crude oil is one of the alternative product as an important raw material. The pyrolysis temperature and different methods can be obtained following tar: low temperature (450-650 deg.] C) mainstream tar, low and medium temperature (600-800 deg.] C) furnace tar, intermediate temperature (900-1000 ℃) vertical furnace tar, high temperature (1000 deg.] C) coke tar; as brown and black coal tar low temperature, a small specific gravity, its composition paraffins, olefins and about 50% aromatic hydrocarbons, phenolic content of up to 30% (mainly advanced phenol), remainder mainly consisting of nitrogen-containing bas...

Claims

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Application Information

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Patent Type & Authority Patents(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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