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Residue oil hydrotreating method and system

A technology for hydrogenation and hydrogenation treatment of residual oil, which is applied in the field of hydrogenation, can solve the problems of waste and protection of reactor space, etc., and achieve the effects of increasing raw material processing capacity, simple switching, and slow deactivation

Active Publication Date: 2020-01-14
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, two protective reactors with different sizes are used in rotation, but when one reactor is used, the other reactor is idle, and there is also the problem of wasting the space of the protective reactor.

Method used

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  • Residue oil hydrotreating method and system
  • Residue oil hydrotreating method and system
  • Residue oil hydrotreating method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Such as figure 1 As shown, the residue mixed raw material A and hydrogen enter the first hydrogenation protection reactor 1A, and the wax oil raw material and hydrogen enter the second hydrogenation protection reactor 1B. The operating conditions of the fixed bed residue hydrogenation unit include: total volume space velocity 0.18h -1 (For residual oil mixed raw material), the feed amount of residual oil mixed raw material A is 75.6g / h, the hydrogen-oil volume ratio at the inlet of the first hydrogenation protection reactor 1A is 600:1, and the total volume space velocity is 0.12h -1 (to the wax oil raw material), the wax oil raw material feed rate is 50g / h, the second hydrogenation protection reactor 1B inlet hydrogen oil volume ratio 200:1, the first hydrogenation protection reactor 1A and the second hydrogenation protection reaction The hydrogen partial pressure at the inlet of device 1B is 15.0MPa.

[0088] During the whole operation cycle, the properties of the p...

Embodiment 2

[0091] Such as figure 1 As shown, the residue mixed raw material A and hydrogen enter the first hydrogenation protection reactor 1A, and the wax oil raw material and hydrogen enter the second hydrogenation protection reactor 1B. The operating conditions of the fixed bed residue hydrogenation unit include: total volume space velocity 0.22h -1 (For residual oil mixed raw material), the feed amount of residual oil mixed raw material A is 92.4g / h, the hydrogen-oil volume ratio at the inlet of the first hydrogenation protection reactor 1A is 650:1, and the total volume space velocity is 0.12h -1 (to the wax oil raw material), the wax oil raw material feed rate is 50g / h, the second hydrogenation protection reactor 1B inlet hydrogen oil volume ratio 150:1, the first hydrogenation protection reactor 1A and the second hydrogenation protection reaction The hydrogen partial pressure at the inlet of device 1B is 15.0MPa.

[0092] During the whole operation period, by adjusting the react...

Embodiment 3

[0099] Such as figure 1 As shown, the residue mixed raw material B and hydrogen enter the first hydrogenation protection reactor 1A, and the wax oil raw material and hydrogen enter the second hydrogenation protection reactor 1B. The operating conditions of the fixed bed residue hydrogenation unit include: total volume space velocity 0.20h -1 (for residual oil mixed raw material), the feed amount of residual oil mixed raw material A is 84g / h, the hydrogen-oil volume ratio at the inlet of the first hydrogenation protection reactor 1A is 600:1, and the total volume space velocity is 0.12h -1 (to the wax oil raw material), the wax oil raw material feed rate is 50g / h, the second hydrogenation protection reactor 1B inlet hydrogen oil volume ratio 200:1, the first hydrogenation protection reactor 1A and the second hydrogenation protection reaction The hydrogen partial pressure at the inlet of device 1B is 15.0MPa. When the device starts to operate, the pressure drop of the first hy...

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Abstract

The invention relates to a residual oil hydrotreating method and system. The method comprises the following steps: (1) introducing raw materials containing residual oil and hydrogen into a first hydrogenation protection reactor to carry out a first hydrogenation protection reaction to obtain a first reaction product; introducing wax oil raw materials and hydrogen into a second hydrogenation protection reactor to carry out a second hydrogenation protection reaction to obtain a second reaction product; introducing the obtained first reaction product and the second reaction product into a subsequent hydrotreating reactor; (2) when the hydrogenation protection catalyst in the first hydrogenation protection reactor needs to be replaced, cutting out the first hydrogenation protection reactor, and introducing the raw material containing residual oil and hydrogen into the second hydrogenation protection reactor; (3) after replacing the hydrogenation protection catalyst in the first hydrogenation protection reactor, introducing the wax oil raw material and hydrogen into the first hydrogenation protection reactor. The method and system provided by the invention fully utilize the space of thehydrogenation protection reactor to improve the raw material treatment capacity.

Description

technical field [0001] The invention relates to the technical field of hydrogenation, in particular to a residual oil hydrogenation treatment method and system. Background technique [0002] As crude oil becomes heavier and the variety of crude oil increases, the requirements for lighter oil products are getting higher and higher. "Heavy oil products" means high asphaltene content hydrocarbons obtained from topped crude oil, petroleum residuum, oil sands, bitumen, shale oil, liquefied coal, or recycled oil. The hydrogenation process of heavy oil is a deep processing technology of heavy oil. This process is to carry out hydrodesulfurization, hydrodenitrogenation, hydrodemetallization and residual carbon conversion on heavy oil such as residual oil in the presence of hydrogen and catalysts. And hydrocracking reaction, the obtained residual oil after hydrogenation can be used as the feedstock of high-quality catalytic cracking to produce light oil products, so as to achieve th...

Claims

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Application Information

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IPC IPC(8): C10G69/02
CPCC10G69/02
Inventor 邵志才邓中活戴立顺聂红刘涛施瑢聂鑫鹏任亮杨清河胡大为孙淑玲贾燕子赵宁
Owner CHINA PETROLEUM & CHEM CORP
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