Treatment method for inferior heavy oil and residual oil

A treatment method and technology for residual oil, which are applied in the treatment of hydrocarbon oil, hydrotreating process, petroleum industry, etc., can solve the problems of difficulty in becoming asphalt products, increased pressure drop in the bed, and can only be used as a product, so as to reduce production operations. The effect of cost, coke suppression, and extension of the start-up period
CN1766059AActive Publication Date: 2006-05-03CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2006-05-03

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Abstract

The invention discloses a process for treating inferior heavy oil and residual oil comprising the following steps: loading heavy oil and petroleum residue into a solvent extraction apparatus, charging the obtained deasphalted oil into a fixed bed for hydrotreatment, entering the obtained tail oil into a catalytic cracking device, loading part or total slurry oil and de-oiled asphalt into a floating bed hydrogenation unit, separating the outcome yield to obtain lightweight fraction and untransformed tail oil, which is circulated to the solvent extraction device.
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Description

technical field

[0001] The invention relates to a method for producing light distillate oil from inferior heavy and residual oil, especially a method for producing light distillate oil by organically combining solvent deasphalting, fixed bed hydrotreating, catalytic cracking and suspension bed hydrocracking processes . Background technique

[0002] The combination of fixed bed hydrogenation and RFCC is currently a widely used method for lightening heavy and residual oil. Fixed-bed residual oil hydrotreating can remove most of the residual carbon and S, N and other heteroatoms in the residual oil. The product quality is good, and it can directly enter the FCC unit to produce light oil in large quantities, and the economic benefits are extremely considerable. However, the traditional fixed-bed hydrogenation technology for residual oil is difficult to apply to the processing of low-quality residual oil raw materials with high metal and residual carbon content because the catal...

Claims

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