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Residue oil hydrotreatment catalyst grading method and residue oil hydrotreatment method

A technology for residual oil hydrogenation and catalyst, which is applied in the fields of hydrogenation treatment process, hydrocarbon oil treatment, petroleum industry, etc. It can solve the problem that the removal rate of carbon residue is not obvious, and achieve the reduction of catalyst carbon deposition, uniform distribution, The effect of strong carbon deposition ability

Active Publication Date: 2016-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a new residual oil in order to overcome the defect that the existing residual oil hydrotreating catalyst grading method is used in the process of residue oil hydrotreating to improve the carbon residue removal rate. Hydrotreating catalyst grading method and residual oil hydrotreating method

Method used

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  • Residue oil hydrotreatment catalyst grading method and residue oil hydrotreatment method
  • Residue oil hydrotreatment catalyst grading method and residue oil hydrotreatment method

Examples

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Effect test

Embodiment 1

[0050] This example is used to illustrate the catalyst grading method for residual oil hydrotreating and the method for residual oil hydrotreating provided by the present invention.

[0051] The reactor is filled with G1, M1, S1 and CCR1 sequentially from front to back, and the filling volume ratio is 5:35:30:30. The residual oil and hydrogen were mixed and then injected into the reactor for hydrotreating. The conditions of hydrotreating are shown in Table 3, and the removal rate of impurities is shown in Table 4.

Embodiment 2

[0055] This example is used to illustrate the catalyst grading method for residual oil hydrotreating and the method for residual oil hydrotreating provided by the present invention.

[0056] According to the method of Example 1, the residual oil hydrotreating is carried out, the difference is that the reactor is filled with G1, M1, S2, CCR2 and CCR1 in sequence from front to back, and the filling volume ratio is 5:35:30:15:15, Its impurity removal rate is shown in Table 4.

Embodiment 3

[0060] This example is used to illustrate the catalyst grading method for residual oil hydrotreating and the method for residual oil hydrotreating provided by the present invention.

[0061] In this example, the raw material oil and test conditions are the same as in Example 1. The reactor is filled with G1, M1, S2 and CCR1 in sequence from front to back, and the filling volume ratio is 5:35:30:30. The removal rate of impurities is shown in the table 4.

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Abstract

The invention relates to a residue oil hydrotreatment catalyst grading method and a residue oil hydrotreatment method. The residue oil hydrotreatment catalyst grading method includes filling a residue oil hydrotreatment device with a hydrogenation protection catalyst, a hydrodemetallization catalyst, a hydrodesulfurization catalyst and a catalyst for residual carbon removal by hydrogenation in order along a material flow direction. Specifically, the total acid amount of each catalyst along the material flow direction increases gradually, the proportion of Lewis acid in total acid decreases gradually, and the proportion of Bronsted acid in the total acid increases gradually. The residue oil hydrotreatment method comprises injecting residual oil into the residue oil hydrotreatment device to perform hydrotreatment, wherein the residue oil hydrotreatment device is filled with the catalyst according to the grading method. In a residue oil hydrotreatment process, the residue oil hydrotreatment catalyst grading method provided by the invention can significantly improve the residual carbon removal rate.

Description

technical field [0001] The invention relates to a catalyst gradation method for residual oil hydrogenation treatment and a residual oil hydrogenation treatment method. Background technique [0002] The main purpose of the fixed-bed residual oil hydrotreating process is to remove a large number of impurities contained in the residual oil raw material, such as sulfur, nitrogen, metals and asphaltenes, and to provide raw materials for the catalytic cracking unit. The main reactions in this process include hydrodemetallization, hydrodesulfurization, hydrodenitrogenation, saturation of aromatics, and hydrocracking of hydrocarbons. The early fixed-bed residual oil hydroprocessing technology was mainly desulfurization, but in recent years, with the progress of fixed-bed residual oil hydroprocessing technology and catalytic cracking technology, the focus of fixed-bed residual oil hydroprocessing technology has changed from desulfurization For carbon removal and long-term operation....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G65/02
Inventor 邓中活戴立顺牛传峰刘涛邵志才董凯施瑢杨清河
Owner CHINA PETROLEUM & CHEM CORP
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