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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 effect of increasing added value, good stability, and good pumping performance

Inactive Publication Date: 2006-07-19
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 the medium-sized fixed-bed hydrogenation test device, Mo-Ni / Al 2 O 3 The type catalyst is hydrogenation pre-refining (R1) catalyst (of which MoO 3 Accounted for 15.62% of the total weight of the catalyst, NiO accounted for 2.91% of the total weight of the catalyst), based on W-Mo-Ni / Al 2 O 3 The type catalyst is a hydrogenation upgrading (R2) catalyst (of which 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 accounted for 2.84% of the total weight of the catalyst), the filling ratio of the hydrogenation pre-refining catalyst and the hydro-upgrading catalyst is 2:3 (weight), two reactors are connected in series, and a single pass is adopted. The method of operation of the coal tar fraction wash oil, a mixture of anthracene oil and two anthracene oil (feedstock oil 1) for hydro-upgrading. The catalyst is pre-sulfided by a conventional pre-sulfurization process before use. After the catalys...

Embodiment 2

[0037] In the medium-sized fixed-bed hydrogenation test device, Mo-Ni / Al 2 O 3 Type catalyst is hydrogenation pre-refining (R1) catalyst (of which MoO 3 Accounted for 15.62% of the total weight of the catalyst, NiO accounted for 2.91% of the total weight of the catalyst), based on W-Mo-Ni / Al 2 O 3 The type catalyst is a hydrogenation upgrading (R2) catalyst (of which 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 accounted for 2.84% of the total weight of the catalyst), the hydrogenation pre-refining catalyst and the hydro-upgrading catalyst filling ratio is 3:7 (weight), two reactors are connected in series, and a single pass The method of operation is based on coal tar fractions (washing oil, mixed oil of one anthracene oil and two anthracene oil), blending part of the extracted oil of catalytic cracking heavy oil (the boiling range is 300 ℃ ~ 460 ℃ fraction) and ethylene tar ( The boiling rang...

Embodiment 3

[0045] In the medium-sized fixed-bed hydrogenation test device, W-Ni / Al 2 O 3 The type catalyst is a hydrogenation pre-refining (R1) catalyst (where WO 3 Accounted for 24.79% of the total weight of the catalyst, NiO accounted for 3.05% of the total weight of the catalyst), based on W-Mo-Ni / Al 2 O 3 The type catalyst is a hydrogenation upgrading (R2) catalyst (of which 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 accounted for 2.84% of the total weight of the catalyst), the filling ratio of the hydrogenation pre-refining catalyst and the hydro-upgrading catalyst is 1:4 (weight), two reactors are operated in series, using more than 420 The operating mode of the heavy fraction circulation at ℃ has carried out the hydro-upgrading of the feedstock oil 1. The catalyst is pre-sulfided by a conventional pre-sulfurization process before use. After the catalyst activity is stable, the process conditions ...

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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 liquid base oil, in particular to a method for extracting oil from coal tar fractions and / or catalytically cracked heavy oil (including refining oil and oil slurry) and steam cracking to produce ethylene tar through A method of hydro-upgrading to produce heat transfer fluid base oil. Background technique [0002] Heat transfer fluid (or heat transfer oil) is a heat transfer medium that absorbs heat at a high-temperature heat source, increases its temperature, and exchanges 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, coating industry, wood industry and other fields. With the rapid development of the domestic economy, the demand for heat transfer fluid is increasing day by day, and its ...

Claims

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Application Information

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Patent Type & Authority Applications(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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