Heavy oil and residual oil combined treating process

A combined processing and residual oil technology, applied in the petroleum industry, hydrotreating process, processing hydrocarbon oil, etc., can solve the problems of poor quality of solid petroleum coke, difficult to use and handle, reduce coke formation in the device, and improve the processing capacity. and liquid yield, improve service life, reduce the effect of severity

Active Publication Date: 2009-12-16
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 Properties of raw material oil

[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 points

29.0

C

85.31

Aromatic

33.1

H

9.89

colloid

24.5

S

3.36

Asphaltene

13.4

N

1.42

Distillation range, wt%

Metal content, μg / g

350℃～500℃

32.1

Fe

13.65

＞500℃

67.9

[0031] From the properties of the raw material, it can be seen that the raw material is low-quality crude oil with high sulfur, high metal, and high carbon residue. The raw material is first subjected t...

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Abstract

The invention discloses a method for combined processing of heavy and residual oil, which comprises the following content: the low-quality heavy and residual oil raw material is subjected to suspension bed hydrocracking under moderate conditions, and the yield of unconverted vacuum residual oil accounts for 20% by weight of the raw material. 45wt%, and then fractionate the suspended bed hydrocracking product into light fraction, heavy fraction (VGO) and unconverted vacuum residue, VGO undergoes catalytic cracking treatment, unconverted vacuum residue undergoes solvent deasphalting treatment, solvent The deasphalted oil obtained from the deasphalting process is used as the raw material for catalytic cracking. Compared with the prior art, the method of the invention effectively solves the problem that the suspended bed hydrocracking is not easy to operate stably, and at the same time can make full use of all the fractions in the raw material, and no unusable materials are generated. The method of the invention is suitable for processing various inferior heavy and residual oils.

Description

technical field [0001] The invention relates to a heavy and residual oil conversion method, in particular to a method for effectively converting and utilizing inferior heavy and residual oil raw materials containing high sulfur, nitrogen, carbon residue, colloid, asphaltene and heavy metals. Background technique [0002] There is an increasing shortage of crude oil resources around the world, the quality of crude oil is becoming heavier and worse, and 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 low-quality heavy and residual oil is the key to making full use of crude oil. In addition to the production of a small amount of asphalt, the utilization of low-quality heavy and residual oil needs to be lightened to produce light distillate products. At present, the main technical means of lightening heavy and residual oil in the prior art include decarburization ...

Claims

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Application Information

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Patent Type & Authority Patents(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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