Heavy oil and residual oil combined treating process

A combined processing and residual oil technology, which is applied in the petroleum industry, hydroprocessing process, and hydrocarbon oil treatment, can solve the problems of poor quality of solid petroleum coke, difficult to use and handle, reduce coke generation in equipment, etc., and improve the processing capacity and liquid yield, increased service life, and reduced severity

Active Publication Date: 2007-12-19
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this process increases the conversion rate of light oil, it does not fundamentally solve the problem of reducing the coke production of the unit and reducing the dry gas output
[0005] In addition, when the suspension bed hydrocracking and coking process are combined, due to the high impurity content in the inferior raw material, and the suspension bed catalyst cannot be separated and enter the coking raw material, the solid petroleum coke obtained in the coking process is of poor quality and difficult to use and handle

Method used

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  • Heavy oil and residual oil combined treating process

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Experimental program
Comparison scheme
Effect test

Embodiment

[0028] The raw material oil used in the test is Tahe slag, and its raw material properties are shown in Table 1.

[0029] Table 1 Raw Oil Properties

[0030] project

nature

project

nature

Density (20℃), kg / m 3

1001

Ni

239.96

Viscosity(100℃)mm 2 .s -1

576.7

V

227.4

Carbon residue, wt%

18.3

Four components, wt%

Elemental composition, wt%

Saturation

29.0

C

85.31

Aroma

33.1

H

9.89

colloid

24.5

S

3.36

asphaltenes

13.4

N

1.42

Distillation range, wt%

Metal content, μg / g

350℃～500℃

32.1

Fe

13.65

＞500℃

67.9

[0031] It can be seen from the properties of the raw material that the raw material is low-quality crude oil with high sulfur, high metal, and high carbon residue. The raw mater...

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Abstract

The heavy oil and residual oil combined treating process includes the following steps: hydrocracking heavy oil and residual oil material in a suspended bed in mild condition; fractionating the hydrocracked resultant into light fraction, heavy fraction and un-converted vacuum residue, which accounts for 20-45 wt% of the material; catalytically cracking the heavy fraction; and solvent deasphalting the un-converted vacuum residue to obtain deasphalted oil serving as the catalytically cracking material. The process of the present invention has stable hydrocracking operation in suspended bed, can utilize all the fractions in the material, and is suitable for treating various kinds of heavy oil and residual oil.

Description

technical field [0001] The invention relates to a method for converting heavy and residual oil, in particular to a method for effectively converting and utilizing low-quality heavy and residual oil raw materials containing high sulfur, nitrogen, residual carbon, colloid, asphaltene and heavy metals. Background technique [0002] Crude oil resources are increasingly scarce in the world, and the quality of crude oil is becoming heavier and worse, while the demand for petroleum products is increasing, which requires the full and effective use of limited crude oil resources. Among them, the effective utilization of inferior heavy and residual oil is the key to fully utilize crude oil. For the utilization of inferior heavy and residual oil, except for a small amount of asphalt, most of them need to be lightened to produce light distillate products. At present, the main technical means for lightening heavy and residual oil in the prior art include decarburization and hydrogenatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/04
Inventor 贾永忠贾丽李鹤鸣杨涛刘建锟葛海龙
Owner CHINA PETROLEUM & CHEM CORP
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