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A method for hydrogenation of high-viscosity polyalphaolefin synthetic oil

A technology of α-olefin and synthetic oil, which is applied in the field of processing poly-α-olefin synthetic oil, can solve the problems of partial flow hydrogenation, incompleteness, etc., and achieve the effects of reducing axial back-mixing, improving aspect ratio, and excellent quality

Active Publication Date: 2022-04-12
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for hydrogenation of high-viscosity polyalphaolefin synthetic oil, so as to solve the problem of partial flow of materials in the fixed bed layer or incomplete hydrogenation in the prior art

Method used

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  • A method for hydrogenation of high-viscosity polyalphaolefin synthetic oil
  • A method for hydrogenation of high-viscosity polyalphaolefin synthetic oil
  • A method for hydrogenation of high-viscosity polyalphaolefin synthetic oil

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Effect test

Embodiment 1

[0033] After the circulating oil and PAO60 raw material oil are mixed according to the weight ratio of 24:76, the 100°C kinematic viscosity of the mixed material is 28mm 2 / s, the heated mixed material enters the first hydrogenation reaction zone, and reacts with the hydrogenation protection agent and the hydrofinishing catalyst A successively in the presence of hydrogen, and the loading weight ratio of the hydrogenation protection agent and the hydrofinishing catalyst A The ratio is 2:8, the reaction effluent directly enters the second hydrogenation reaction zone to contact with the hydrofinishing catalyst A for reaction, and the reaction effluent is subjected to gas-liquid separation, and the obtained liquid phase stream is subjected to fractional distillation to obtain light materials and Heavy material, the light material is circulated to the raw material tank as circulating oil, and the heavy material is a refined polyalphaolefin synthetic oil product. The reaction condit...

Embodiment 2

[0035] After the circulating oil and PAO60 raw material oil are mixed according to the weight ratio of 24:76, the 100°C kinematic viscosity of the mixed material is 28mm 2 / s, the heated mixed material enters the first hydrogenation reaction zone, and reacts with the hydrogenation protection agent and the hydrofinishing catalyst A successively in the presence of hydrogen, and the loading weight ratio of the hydrogenation protection agent and the hydrofinishing catalyst A The ratio is 3:7, the reaction effluent directly enters the second hydrogenation reaction zone to contact with the hydrogenation catalyst B for reaction, and the reaction effluent is subjected to gas-liquid separation, and the obtained liquid phase stream is subjected to fractional distillation to obtain light materials and Heavy material, the light material is circulated to the raw material tank as circulating oil, and the heavy material is a refined polyalphaolefin synthetic oil product. The reaction conditio...

Embodiment 3

[0037] After the circulating oil and PAO60 raw material oil are mixed according to the weight ratio of 48:52, the kinematic viscosity of the mixed material at 100°C is 12mm 2 / s, the heated mixed material enters the first hydrogenation reaction zone, and reacts with the hydrogenation protection agent and the hydrofinishing catalyst A successively in the presence of hydrogen, and the loading weight ratio of the hydrogenation protection agent and the hydrofinishing catalyst A The ratio is 2:8, the reaction effluent directly enters the second hydrogenation reaction zone to contact with the hydrofinishing catalyst A for reaction, and the reaction effluent is subjected to gas-liquid separation, and the obtained liquid phase stream is subjected to fractional distillation to obtain light materials and Heavy material, the light material is circulated to the raw material tank as circulating oil, and the heavy material is a refined polyalphaolefin synthetic oil product. The reaction con...

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Abstract

A method for hydrogenation of high-viscosity polyalphaolefin synthetic oil. The raw material of high-viscosity polyalphaolefin synthetic oil is mixed with circulating oil and then enters the first hydrogenation reaction zone and the second hydrogenation reaction zone for reaction. The reaction effluent is passed through After gas-liquid separation, the obtained liquid stream is subjected to fractionation to obtain light materials and heavy materials. The light materials are recycled to the raw material tank as circulating oil, and the heavy materials are refined polyalphaolefin synthetic oil products. The treatment method provided by the present invention improves the feeding status of the fixed-bed hydrogenation reactor, and solves the problem of partial flow of materials in the fixed-bed bed layer or incomplete hydrogenation in the fixed-bed hydrogenation reactor existing in the prior art , and obtained high-quality refined polyalphaolefin synthetic oil products.

Description

technical field [0001] The invention relates to the treatment of polyalphaolefin synthetic oil, more specifically, a method for hydrogenation of high-viscosity polyalphaolefin synthetic oil. Background technique [0002] Polyalphaolefin synthetic oil (PAO) is a long-chain alkane with regular structure obtained by polymerizing linear alpha olefins under the action of a catalyst and hydrotreating the polymerized products. The viscosity-temperature properties, low-temperature fluidity, oxidation stability, and evaporation of polyalphaolefin synthetic oils are superior to those of mineral base oils. They have become ideal base oils and are widely used in the preparation of high-grade and special lubricating oils. PAO synthetic oil can be used to prepare different kinds of diesel engine oil, gasoline engine oil, refrigerating machine oil, heat transfer oil, compressor oil, automatic transmission fluid and grease, etc., especially for lubricating oil under high temperature and ext...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/70C10G2300/10
Inventor 王鲁强郭庆洲高杰李洪辉李洪宝
Owner CHINA PETROLEUM & CHEM CORP
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