Ionic-like liquid and preparation method and application thereof in preparation of alkylated oil

A technology for ionic liquids and alkylated oils, applied in catalytic reactions, chemical instruments and methods, organic chemistry, etc., can solve the problem that the octane number of alkylated oils needs to be further improved, the requirements for synthetic raw materials are high, and the synthetic methods are complicated etc. to achieve the effect of strong water resistance, low cost and simple synthesis method

Active Publication Date: 2016-05-04
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the proportion of C8 components and trimethylpentane (TMP) in the alkylation oil prepared by the composite ionic liquid catalysis has increased, the synthesis of ionic liquid has higher requirements for synthetic raw materials, and the synthesis method is more complicated. , and the price is relatively expensive; in addition, the selectivity of the alkylation reaction catalyzed by the ionic liquid is limited, and the octane number of the alkylated oil needs to be further improved

Method used

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  • Ionic-like liquid and preparation method and application thereof in preparation of alkylated oil
  • Ionic-like liquid and preparation method and application thereof in preparation of alkylated oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation of a class of ionic liquids

Embodiment 1-1

[0038] Slowly add 0.065 mol (3.84 g) of acetamide to 0.1 mol (13.34 g) of AlCl 3 , using n-heptane as a solvent, under nitrogen protection, stirring at room temperature for 30 minutes, then heating to 80° C., and continuing to stir for 2 hours to complete the reaction to obtain a reaction mixture. Subsequently, the reaction mixture is cooled, and after cooling, it is divided into two phases, wherein the upper strata is n-heptane, and the lower floor is the reactant. After separating the upper strata n-heptane, 0.015 moles (1.48 grams) of CuCl are added to the reactant under nitrogen protection and The temperature was raised to 120° C., and stirring was continued for 2 hours to completely react CuCl to obtain an ionic liquid.

Embodiment 1-2

[0040] In dry air, without n-heptane as a solvent, 0.015 moles (2.02 g) of CuCl 2 and 0.1 mol (13.34 g) of AlCl 3 Mix evenly to obtain a metal mixture; subsequently, slowly add 0.065 moles (3.84 grams) of acetamide into the above metal mixture, stir and mix at room temperature and then raise the temperature to 120°C for reaction, the reaction process exotherms and forms a tan liquid. The reaction temperature was controlled at 120° C., and the stirring was continued for 4 hours to complete the reaction to obtain an ionic liquid.

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Abstract

The invention provides an ionic-like liquid and a preparation method and an application thereof in preparation of alkylated oil. An amide compound undergoes a reaction with a first metal compound and more than one second metal compound to obtain the ionic-like liquid. With the ionic-like liquid as a catalyst, isoparaffin and olefin are subjected to an alkylation reaction, the ionic-like liquid is separated, and thus the alkylated oil is prepared. The ionic-like liquid has the advantages of easily obtained synthetic raw materials, simple synthetic method and cheap price, the alkylation reaction with the ionic-like liquid as the catalyst has high selectivity, and the proportion of C8 components and trimethyl pentane and the octane number of the alkylated oil are both greatly improved.

Description

technical field [0001] The invention relates to a quasi-ionic liquid, in particular to a quasi-ionic liquid and its preparation method and application in the preparation of alkylated oil. Background technique [0002] As people pay more and more attention to environmental protection, the quality of gasoline is developing and improving in the direction of lead-free, low olefin and aromatic content, low vapor pressure, low sensitivity, and high octane number. In this case, adding alkylate to gasoline is an effective way to maintain high octane number, low sensitivity and low vapor pressure of gasoline. [0003] At present, the catalysts used in the industrial alkylation process are mainly liquid strong acids such as concentrated sulfuric acid and hydrofluoric acid. However, hydrofluoric acid is highly toxic and volatile to form aerosols. Once leaked, it will cause serious harm to the production environment and the surrounding ecological environment. Concentrated sulfuric acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/02C07C2/58C07C9/16
CPCB01J31/0279B01J31/0282B01J31/0285B01J2231/32C07C2/58C07C9/16
Inventor 张睿胡鹏程刘植昌孟祥海徐春明刘海燕
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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