Method for producing lubricating oil basic oil

A technology for lubricating base oil and distillate oil, which is applied in the directions of lubricating compositions, base materials, petroleum industry, etc., can solve the problems of high investment and operating costs, complex technological processes, affecting economic benefits, etc., and achieves good reaction effects and satisfying Index requirements, the effect of extending the operating cycle

Active Publication Date: 2008-05-07
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

There are deficiencies such as complex technological process, high investment and operating costs, and impact on economic benefits
CN1289643A adopts hydrotreatment-hydrofining-isomerization dewaxing-hydrogenation supplementary refining to produce lubricating oil base oil, each reaction section adopts the same reaction pressure, the pressure level is higher, and there are the same shortcomings as above

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  • Method for producing lubricating oil basic oil

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Embodiment Construction

[0014] The method for producing food-grade white oil of the present invention adopts a low-pressure hydroisomerization-adsorption treatment process, including the following steps: After the raw material oil and hydrogen are mixed, they first enter the hydroisomerization reactor, and in the presence of hydrogen and a hydroisomerization catalyst Under the isomerization reaction, the reaction product enters the gas-liquid separator, and the liquid phase enters the fractionation tower to cut out the lubricating oil fraction. The lubricating oil fraction is subjected to adsorption treatment, and the effluent of the adsorption treatment is the lubricating oil base oil product.

[0015] Since the unstable components in the oil produced by hydroisomerization are precipitated under light conditions and affect the performance of the product, the product of the hydroisomerization reaction needs to undergo an adsorption process to remove the unstable components to improve the color of the ...

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Abstract

The invention discloses a method for producing lube base oil, which is characterized in that low-pressure hydroisomerization and adsorption treatment are adopted and organically combined, and the lube base oil meeting the standard of HVIW is obtained; the raw material firstly enters a low-pressure hydroisomerizing reactor, and the pour point is lowered; after gas-liquid separation of the heterogeneous product, adsorption treatment is done to the separated lube fraction for color enhancement and stability improvement. The invention has the advantages that adaptability of the raw oil is strong; operating condition is mild; investment and operating cost is low; and the prepared lube base oil meeting the standard of HVIW can be applied to blinding with various brands of high-grade lube.

Description

technical field [0001] The invention relates to a method for producing lubricating oil base oil, in particular to a method for producing lubricating oil base oil by adopting hydroisomerization-adsorption treatment. Background technique [0002] The low-temperature fluidity of lubricating oil is an important physical property for storage and use. The main reason for the poor fluidity of medium and heavy distillates is that the content of paraffins in oil products is too high. Lowering the freezing point of heavy distillate oil while retaining other isomeric hydrocarbons with excellent properties in lubricating oil has a higher yield of lubricating oil base oil, and is an effective method for producing low pour point and high viscosity index. [0003] CN1676585A discloses a production method of lubricating oil base oil. Under the operating pressure of 11.0-20.0MPa, hydrotreated oil is used as raw material, and a two-stage process of hydrotreating-hydrodewaxing-hydrofining is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/06C10G73/02C10M101/02
Inventor 方向晨姚春雷刘平全辉林振发
Owner CHINA PETROLEUM & CHEM CORP
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