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Method for preparing synthetic hydrocarbon containing aromatic hydrocarbon from internal olefin

A technology for the synthesis of internal olefins and hydrocarbons, applied in the field of synthetic hydrocarbons, can solve the problems of large equipment investment and high energy consumption, and achieve the effects of small investment, easy industrialization, and cost reduction

Inactive Publication Date: 2013-09-11
赵阳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the industrial hydrogenation process adopts high-pressure hydrogenation process, which has high energy consumption and large investment in industrial equipment.

Method used

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  • Method for preparing synthetic hydrocarbon containing aromatic hydrocarbon from internal olefin
  • Method for preparing synthetic hydrocarbon containing aromatic hydrocarbon from internal olefin
  • Method for preparing synthetic hydrocarbon containing aromatic hydrocarbon from internal olefin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Preparation of co-catalyst:

[0029] Under the condition of 30-50°C, mix 10 parts of conductive polyaniline and 75 parts of N-methylpyrrolidone, then add 12 parts of ammonia water and stir for 2 hours to obtain a cocatalyst.

[0030] 2. Preparation of synthetic hydrocarbons containing aromatics:

[0031] Using 35 parts of tetrapropylene (carbon twelve) and 10 parts of dodecylbenzene as raw materials, carry out alkylation reaction under the action of aluminum trichloride catalyst (1.5 parts) and cocatalyst (0.6 parts), alkylation The reaction is carried out under a nitrogen atmosphere, and the nitrogen pressure is 2 to 2.5kg / cm 2 , the reaction temperature is 25-30°C, and the reaction time is 6 hours. After the alkylation reaction, wash and neutralize with water, and after the pH value becomes neutral, distill and dehydrate under reduced pressure at 80°C, then refine and filter to obtain synthetic hydrocarbons containing aromatics.

[0032] 3. Properties of aromati...

Embodiment 2

[0034] 1, the preparation of promoter: with embodiment 1.

[0035] 2. Preparation of synthetic hydrocarbons containing aromatics:

[0036] Using 35 parts of internal olefin carbon twelve and 10 parts of dodecylbenzene as raw materials, carry out the alkylation reaction under the action of aluminum trichloride catalyst (1.5 parts) and cocatalyst (0.6 part), and the alkylation reaction is carried out under nitrogen Carry out under atmosphere, nitrogen pressure 2~2.5kg / cm 2 , the reaction temperature is 25-30°C, and the reaction time is 6 hours. After the alkylation reaction, wash and neutralize with water, and after the pH value becomes neutral, distill and dehydrate under reduced pressure at 80°C, then refine and filter to obtain synthetic hydrocarbons containing aromatics.

[0037] 3. Properties of aromatic hydrocarbon-containing synthetic hydrocarbons in this embodiment: pour point: -40 degrees, flash point: 252 degrees, kinematic viscosity: 100 degrees 23, viscosity index:...

Embodiment 3

[0039] 1. Preparation of co-catalyst:

[0040] Under the condition of 30-50°C, 11 parts of conductive polyaniline and 70 parts of N-methylpyrrolidone were mixed, and then 14 parts of ammonia water was added and stirred for 3.5 hours to obtain a cocatalyst.

[0041] 2. Preparation of synthetic hydrocarbons containing aromatics:

[0042] Using 50 parts of tetrapropylene (carbon twelve) and 5 parts of dodecylbenzene as raw materials, carry out alkylation reaction under the action of aluminum trichloride catalyst (1.6 parts) and cocatalyst (0.7 parts), alkylation The reaction is carried out under a nitrogen atmosphere, and the nitrogen pressure is 2 to 2.5kg / cm 2 , the reaction temperature is 25-30° C., and the reaction time is 5 hours. After the alkylation reaction, wash and neutralize with water, and after the pH value becomes neutral, distill and dehydrate under reduced pressure at 80°C, then refine and filter to obtain synthetic hydrocarbons containing aromatics. Such as ...

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Abstract

The invention discloses a method for preparing synthetic hydrocarbon containing aromatic hydrocarbon from internal olefin, and belongs to the technical field of synthetic hydrocarbon preparation. The method is as follows: the synthetic hydrocarbon containing the aromatic hydrocarbon is obtained by carrying out an alkylation reaction under the action of an aluminium trichloride catalyst and a cocatalyst by taking alkylbenzene and the internal olefin as raw materials; the number of carbon atoms contained in the alkyl of the alkylbenzene is 1-260, and the internal olefin contains 8-14 carbon atoms; and the prepared synthetic hydrocarbon containing the aromatic hydrocarbon achieves the aromatic hydrocarbon of 5%-10% by weight, the pour point of -28 to -42 DEG C, the flash point of 250-300 degrees, the kinematic viscosity of 22-110 and the viscosity index of 130-180. The method disclosed by the invention has the advantages of wide raw material source and low price; and the prepared synthetic hydrocarbon not only has all the property of PAO synthetic hydrocarbon oil, but also has the characteristics of alkylbenzene synthetic oil, does not need high temperature and high pressure in a production process and is energy-saving and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of synthetic hydrocarbon preparation, and in particular relates to a method for preparing aromatic-containing synthetic hydrocarbons from internal olefins. Background technique [0002] Synthetic hydrocarbons, also known as synthetic hydrocarbon oils, are hydrocarbon lubricating oils prepared by chemical methods, including polyalphaolefins (PAO), polybutene, alkyl aromatics, and synthetic naphthenes. Among them, polyalphaolefin (PAO) is the synthetic lubricating oil base oil that consumes the most in the world and is considered to have the most potential for development. The synthesis of polyalphaolefin (PAO) basically consists of two steps. First, the alpha-olefin monomer is polymerized in the presence of a catalyst to form an unsaturated polymer containing double bonds, which must then be hydrogenated to The double bond is saturated to improve the performance of the product. After hydrogenation, it has th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G50/02
Inventor 赵阳
Owner 赵阳
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