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An acidic polymerized ionic liquid, and a preparing method and applications thereof

A technique for polymerizing ionic liquids and acids, which is applied in chemical instruments and methods, production of liquid hydrocarbon mixtures, organic compound/hydride/coordination complex catalysts, etc. It can solve problems such as potential safety hazards, and achieve moderate catalytic reaction temperature, Easy regeneration and large specific surface area

Active Publication Date: 2017-07-04
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] As a result of the use of these ionic liquid catalysts, waste acid and waste liquid are still produced, and potential safety hazards still exist.

Method used

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  • An acidic polymerized ionic liquid, and a preparing method and applications thereof
  • An acidic polymerized ionic liquid, and a preparing method and applications thereof
  • An acidic polymerized ionic liquid, and a preparing method and applications thereof

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preparation example Construction

[0029] The embodiment of the present invention also provides a method for preparing an acidic polymeric ionic liquid, comprising the following steps:

[0030] Add the monomer, cross-linking agent, initiator and the first organic solvent into the reactor, stir and mix for 2-5 hours, react at 100-200°C for 24-48 hours, cool and dry to obtain the polymerized ionic liquid carrier, wherein , the polymerized ionic liquid monomer is an aromatic heterocyclic olefin, the addition amount of the initiator is 0.3% to 5% of the molar weight of the polymerized ionic liquid monomer, and the added amount of the crosslinking agent is 0.2% of the molar weight of the polymerized ionic liquid monomer. ~5 times, the addition amount of solvent is 5~25 times of the molar weight of polymerized ionic liquid monomer;

[0031] The polymeric ionic liquid carrier and the quaternary amination reagent are dissolved in a second organic solvent at a molar ratio of 1:0.5 to 1:1.5, and the amount of the second ...

Embodiment 1

[0038] Polymerized ionic liquid carrier was synthesized with ethyl acetate as solvent, ammonium persulfate as initiator, divinylbenzene as crosslinking agent and vinylimidazole as monomer. Synthetic process: Add divinylbenzene and 1-vinylimidazole to ethyl acetate at a molar ratio of 1:1, stir and mix in a constant temperature water bath for 2 hours. Then the above mixture was heat-treated with high-pressure solvent in an oven at 100°C for 24 hours, and dried in a vacuum oven at 80°C for 48 hours to obtain the polymerized ionic liquid.

[0039] Add the prepared polymeric ionic liquid to methyl iodide at a molar ratio of 1:1 into absolute ethanol, and stir at room temperature and pressure for 24 hours under dark conditions. After the reaction, filter, wash with ethyl acetate, and dry in a vacuum oven at 80° C. for 48 hours to obtain a quaternized polymeric ionic liquid.

[0040] Add quaternized polymerized ionic liquid, anhydrous aluminum chloride, and copper chloride in a mol...

Embodiment 2

[0042] Polymerized ionic liquid carriers were synthesized with ethyl acetate as solvent, ammonium persulfate as initiator, divinylbenzene as crosslinking agent and vinylpyridine as monomer. Synthetic process: Add divinylbenzene and 1-vinylimidazole to ethyl acetate at a molar ratio of 1:1, stir and mix in a constant temperature water bath for 2 hours. Then the above mixture was heat-treated with high-pressure solvent in an oven at 100°C for 24 hours, and dried in a vacuum oven at 80°C for 48 hours to obtain the polymerized ionic liquid.

[0043] Add the prepared polymeric ionic liquid to methyl iodide at a molar ratio of 1:1 into absolute ethanol, and stir at room temperature and pressure for 24 hours under dark conditions. After the reaction, filter, wash with ethyl acetate, and dry in a vacuum oven at 80° C. for 48 hours to obtain a quaternized polymeric ionic liquid.

[0044] Add quaternized polymerized ionic liquid, anhydrous aluminum chloride, and copper chloride in a mo...

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Abstract

The invention relates to the technical field of alkylation catalyzed by acidic polymerized ionic liquids, and particularly relates to a method of preparing alkylate oil by utilizing a Lewis acid based acidic polymerized ionic liquid catalyst. A polymerized ionic liquid acidified by adopting a Lewis acid is adopted as the catalyst of the method, and a continuous catalytic liquid-phase butane / butylenes alkylation reaction is performed at 20-200 DEG C by adopting a fixed bed reactor. The catalyst is easy to prepare, durable in activity, convenient to regenerate and free of generation of waste acids, thus achieving green alkylation.

Description

technical field [0001] The invention relates to a method for preparing alkylated oil with an acidic polymeric ionic liquid catalyst, in particular to a method for producing alkylation by catalyzing the alkylation reaction of butane and butene with an acidic polymeric ionic liquid. Background technique [0002] Environmental pollution from motor vehicle exhaust is an important cause of smog. According to research, motor vehicle emissions account for 22% to 34% of PM 2.5 in Beijing, Shanghai and the Pearl River Delta. Accelerating the quality upgrade of oil products is one of the important means to reduce exhaust emissions and control air pollution and smog. [0003] Alkylate oil is recognized by the refining industry as the gasoline blending component with the highest comprehensive performance due to its low sulfur, low vapor pressure, no aromatics, and high octane number. With the implementation of the new National V gasoline standard in 2017, the proportion of alkylated oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/44C08F212/36C08F226/06B01J31/06C10G50/00
CPCB01J31/06C08F8/44C08F212/36C08F226/06C10G50/00
Inventor 赵国英王傲运张锁江张海涛
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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