Method for preparing base oil of heat transfer oil

A technology of heat transfer fluid and production method, applied in heat exchange materials, chemical instruments and methods, petroleum industry, etc., can solve problems such as poor quality, and achieve the effects of increasing added value, good thermal stability, and good fluidity

Inactive Publication Date: 2008-02-27
SINOPEC LUOYANG PETROCHEM ENG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] The present invention aims at the problem of poor quality of heat transfer fluid base oils at present, and provides a method of producing heat transfer fluid base oils by utilizing coal tar distillate oil, extracted oil from catalytic cracking heavy oil and / or ethylene tar produced by steam cracking. The method, the heat transfer fluid base oil produced by this method has high density, low viscosity, low freezing point, good fluidity, low toxicity, no peculiar smell, no pollution to the environment, and little corrosion to equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] On a medium-sized fixed-bed hydrogenation test device, Mo-Ni / Al 2 o 3 The type catalyst is hydrogenation pre-refining (R1) catalyst (wherein MoO 3 Accounting for 15.62% of the total weight of the catalyst, NiO accounts for 2.91% of the total weight of the catalyst), with W-Mo-Ni / Al 2 o 3 The type catalyst is a hydrogenation upgrading (R2) catalyst (wherein WO 3 Accounting for 21.27% of the total weight of the catalyst, MoO 3 Accounting for 5.91% of the total weight of the catalyst, NiO accounts for 2.84% of the total weight of the catalyst), the filling ratio of the hydrogenation pre-refining catalyst and the hydrogenation upgrading catalyst is 2:3 (weight), two reactors are connected in series, and adopt a single pass through The operating mode of the coal tar fraction wash oil, an anthracene oil and dianthracene oil mixed oil (stock oil 1) carried out hydro-upgrading. The catalyst is pre-sulfurized by conventional pre-sulfurization process before use, and after t...

Embodiment 2

[0040] On a medium-sized fixed-bed hydrogenation test device, Mo-Ni / Al 2 o 3 The type catalyst is hydrogenation pre-refining (R1) catalyst (wherein MoO 3 Accounting for 15.62% of the total weight of the catalyst, NiO accounts for 2.91% of the total weight of the catalyst), with W-Mo-Ni / Al 2 o 3 The type catalyst is a hydrogenation upgrading (R2) catalyst (wherein WO 3 Accounting for 21.27% of the total weight of the catalyst, MoO 3 Accounting for 5.91% of the total weight of the catalyst, NiO accounts for 2.84% of the total weight of the catalyst), the filling ratio of the hydrogenation pre-refining catalyst and the hydrogenation upgrading catalyst is 3:7 (weight), two reactors are connected in series, and adopt a single pass through The operation mode is mainly based on coal tar fraction (wash oil, mixed oil of mono-anthracene oil and di-anthracene oil), blended with part of the extracted oil of catalytic cracking heavy oil (distillation with a boiling range of 300°C to 4...

Embodiment 3

[0050] On the medium-sized fixed-bed hydrogenation test device, W-Ni / Al 2 o 3 Type catalyst is hydrogenation pre-refining (R1) catalyst (WO 3 Accounting for 24.79% of the total weight of the catalyst, NiO accounts for 3.05% of the total weight of the catalyst), with W-Mo-Ni / Al 2 o 3 The type catalyst is a hydrogenation upgrading (R2) catalyst (wherein WO 3 Accounting for 21.27% of the total weight of the catalyst, MoO 3 Accounting for 5.91% of the total weight of the catalyst, NiO accounts for 2.84% of the total weight of the catalyst), the loading ratio of the hydrogenation pre-refining catalyst and the hydrogenation upgrading catalyst is 1:4 (weight), two reactors are operated in series, and more than 420 The operating mode of the heavy fraction circulation at ℃ carried out hydro-upgrading on the raw material oil 1. The catalyst is pre-sulfurized by conventional pre-sulfurization process before use, and after the activity of the catalyst is stable, the process condition...

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Abstract

The disclosed production method for heat-transfer base oil comprises: contacting the raw oil and H2 with hydrogenation prerefining catalyst firstly to strip impurity of sulfur and nitrogen and then contact with hydrogenation modifying catalyst; fractionating the hydrogenated oil to obtain the 45~285Degdistillate oil, 285~305Deg distillate oil, 305~325Deg distillate oil, and 325~360Deg distillate oil as the heat-transfer base oil of L-QB and L-QC series. The product has large density, low viscosity and solidifying point, little toxicity, and no pollution to environment.

Description

technical field [0001] The invention belongs to the field of petrochemical industry and relates to a production method of heat transfer fluid base oil, in particular to a method for producing ethylene tar by utilizing coal tar fractions and / or catalytically cracked heavy oil (including recycled oil and oil slurry) and steam cracking A method for producing heat-transfer fluid base oils by hydrogenation modification. Background technique [0002] Heat transfer fluid (or heat transfer oil) is a heat transfer medium that absorbs heat from a high-temperature heat source to increase its temperature and exchange heat with a low-temperature fluid, thereby transferring heat. [0003] Heat transfer fluid is widely used in petroleum processing, chemical industry, food industry, textile industry, pharmaceutical industry, paint industry, wood industry and other fields. With the rapid development of domestic economy, the demand for heat transfer fluid is increasing day by day, and more re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/02C09K5/00
Inventor 黄新龙秦如意胡艳芳霍宏敏王洪彬赵晓青张亚西赵智刚
Owner SINOPEC LUOYANG PETROCHEM ENG CORP
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