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
CN101173191AActive Publication Date: 2008-05-07CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2008-05-07

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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.
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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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