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A kind of upflow residual oil hydrotreating method

A technology of hydroprocessing and treatment method, which is applied in the treatment of hydrocarbon oil, petroleum industry, refining to remove heteroatoms, etc. It can solve the problems affecting the stable operation of catalyst performance, unstable catalyst bed, long service life, etc., and achieve long-term Stable catalytic performance, beneficial to conversion ability, stable upper temperature effect

Active Publication Date: 2022-01-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method not only has good hydrogenation performance and metal removal ability, but also has certain desulfurization and carbon residue and asphaltene conversion ability, high hydrogenation activity, long service life, and also overcomes the current catalyst types in upflow reactors. Many, cumbersome loading and unloading, different types of catalysts lead to instability of the catalyst bed, which affects the performance of the catalyst and the stable operation of the device, etc.

Method used

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  • A kind of upflow residual oil hydrotreating method
  • A kind of upflow residual oil hydrotreating method
  • A kind of upflow residual oil hydrotreating method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In this example, an upflow hydrogenation reactor is used to carry out the residual oil hydrotreating reaction. The upflow reactor is provided with three catalyst beds with a volume ratio of 1:1:1. Each catalyst bed is filled with 300 mL of catalyst, and the total amount of catalyst loaded is 900 mL. The hydrotreating catalyst FZC-11UA was used in the three catalyst beds, and the properties of the catalyst are shown in Table 1.

[0037] The feed used is a typical Middle East residual oil, and the hydrofining reaction is carried out in the upflow residual oil hydrogenation reactor, and the upflow hydrogenation oil is obtained after mainly removing impurities such as metals. The main process conditions are shown in Table 2. The properties of the hydrogenated oil obtained in the upflow reactor are shown in Table 3.

[0038] A material distributor and a hydrogen cooling pipe are arranged between the catalyst beds of the upflow hydrogenation reactor. And set thermocouples ...

Embodiment 2

[0050] In this example, an upflow hydrogenation reactor is used to carry out the residual oil hydrotreating reaction. The upflow reactor is equipped with three catalyst beds. Along the flow direction, the first catalyst bed is filled with 260 mL of catalyst, the second catalyst bed is filled with 300 mL of catalyst, and the third catalyst bed is filled with 340 mL of catalyst. The total amount is 900 mL. The three catalyst beds all use hydrotreating catalyst FZC-11UA.

[0051] The feed used is a typical Middle East residual oil, and the hydrofining reaction is carried out in the upflow residual oil hydrogenation reactor, and the upflow hydrogenation oil is obtained after mainly removing impurities such as metals. The main process conditions are shown in Table 2. The properties of the hydrogenated oil obtained in the upflow reactor are shown in Table 4.

[0052] A material distributor and a hydrogen cooling pipe are arranged between the catalyst beds of the upflow hydrogenat...

Embodiment 3

[0054] In this example, an upflow hydrogenation reactor is used to carry out the residual oil hydrotreating reaction. The upflow reactor is equipped with three catalyst beds. Along the flow direction, the first catalyst bed is filled with 300 mL of catalyst, the second catalyst bed is filled with 300 mL of catalyst, and the third catalyst bed is filled with 300 mL of catalyst. The total amount is 900 mL. The three catalyst beds all use hydrotreating catalyst FZC-11UB.

[0055] The feed used is a typical Middle East residual oil, and the hydrofining reaction is carried out in the upflow residual oil hydrogenation reactor, and the upflow hydrogenation oil is obtained after mainly removing impurities such as metals. The main process conditions are shown in Table 2. The properties of the hydrogenated oil obtained in the upflow reactor are shown in Table 4.

[0056] A material distributor and a hydrogen cooling pipe are arranged between the catalyst beds of the upflow hydrogenat...

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Abstract

The invention discloses an upflow type residual oil hydrogenation treatment method. The method comprises: the residual oil feed and hydrogen enter the hydrogenation reactor from the lower part, contact with the hydrogenation catalyst to carry out the hydrogenation reaction, and the product is discharged from the upper part of the hydrogenation reactor, and the hydrogenation reactor is an upflow type A hydrogen reactor, and at least one upflow hydrogenation reactor is used, and each upflow hydrogenation reactor is provided with at least two catalyst beds, and each catalyst bed is filled with the same hydrogenation catalyst. The method of the invention not only has good hydrogenation performance and metal removal capacity, but also has a certain desulfurization and carbon residue and asphaltene conversion capacity, high hydrogenation activity, long service life, and also overcomes the catalyst in the current upflow reactor. There are many types, cumbersome loading and unloading, different active types of catalysts lead to instability of the catalyst bed, which affects the performance of the catalyst and the stable operation of the device.

Description

technical field [0001] The invention relates to a hydrocarbon feed hydrogenation treatment technology, in particular to an upflow residual oil hydrogenation treatment method. Background technique [0002] As crude oil becomes heavier and worse, more and more heavy oil and residual oil need to be processed. The processing of heavy oil and residual oil not only needs to be cracked into products with low boiling points, such as naphtha, middle distillate oil and vacuum gas oil, but also to increase their hydrogen-carbon ratio, which requires decarbonization or Hydrogenation method to achieve. Among them, the decarbonization process includes coking, solvent deasphalting, heavy oil catalytic cracking, etc.; the hydrogenation process includes hydrocracking, hydrofining, hydrotreating, etc. The hydrogenation process can not only hydrogenate and convert residual oil, improve the yield of liquid products, but also remove heteroatoms in it, and the product quality is good, which has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/08
CPCC10G45/08C10G2300/1077C10G2300/107C10G2300/202C10G2300/205C10G2300/70
Inventor 刘铁斌韩坤鹏袁胜华金建辉
Owner CHINA PETROLEUM & CHEM CORP
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