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Hydrogenation method for producing poly-alpha olefin synthetic oil product

A synthetic oil and α-olefin technology, which is applied in the field of hydrogenation to produce high-quality poly-α-olefin synthetic oil products, can solve problems such as partial flow hydrogenation and incomplete hydrogenation, reduce axial back-mixing, increase aspect ratio, and provide excellent quality Effect

Active Publication Date: 2020-04-28
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 hydrogenation method for the production of polyalphaolefin synthetic oil products, to solve the existing problems in the prior art when processing high-viscosity polyalphaolefin synthetic oil raw materials. full question

Method used

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  • Hydrogenation method for producing poly-alpha olefin synthetic oil product
  • Hydrogenation method for producing poly-alpha olefin synthetic oil product
  • Hydrogenation method for producing poly-alpha olefin synthetic oil product

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Effect test

Embodiment 1

[0034] After the circulating oil and PAO60 feedstock oil are mixed according to the weight ratio of 36:64, the kinematic viscosity of the mixed material at 100°C is 18mm 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

[0036] After the circulating oil and PAO60 feedstock oil are mixed according to the weight ratio of 36:64, the kinematic viscosity of the mixed material at 100°C is 18mm 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 hydrofining catalyst A for reaction, the reaction effluent is separated from gas and liquid, 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 conditions are as s...

Embodiment 3

[0038] After the circulating oil and PAO60 feedstock oil are mixed according to the weight ratio of 36:64, the kinematic viscosity of the mixed material at 100°C is 18mm 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 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 conditi...

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Abstract

The invention discloses a hydrogenation method for producing a poly-alpha olefin synthetic oil product. The method comprises the following steps that a high-viscosity poly-alpha olefin synthetic oil raw material and circulating oil are mixed, and sequentially enter a first hydrogenation reaction zone and a second hydrogenation reaction zone and are subjected to reactions; and the reaction effluentis subjected to gas-liquid separation, and the obtained liquid phase material flow is fractionated to obtain a light material and a heavy material, wherein the light material as circulating oil is circulated to a raw material tank, and the obtained heavy material is the refined poly-alpha olefin synthetic oil product. By adopting the treatment method provided by the invention, the feeding condition of the fixed bed hydrogenation reactor is improved, the problem of bias flow or incomplete hydrogenation of the material in a fixed bed layer in a fixed bed hydrogenation reactor in the prior art is solved, and a refined poly-alpha olefin synthetic oil product with excellent quality is obtained.

Description

technical field [0001] The invention relates to the treatment of polyalphaolefin synthetic oil, more specifically, a hydrogenation method for producing high-quality polyalphaolefin synthetic oil products. 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 tempe...

Claims

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Application Information

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