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An upflow residual oil hydrogenation reaction system and residual oil hydrogenation treatment method

A reaction system and hydrotreating technology, applied in the treatment of hydrocarbon oil, petroleum industry, refining to remove heteroatoms, etc., can solve the problems of difficult temperature control, unstable temperature, high hydrogenation activity, and achieve stable temperature and reduced Severe fluctuations, the effect of increasing the reaction temperature

Active Publication Date: 2021-12-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method overcomes the shortcomings of unstable catalyst bed temperature and difficult temperature control in the current upflow reactor, and has good hydrogenation performance and metal removal capacity, and has certain desulfurization and carbon residue and asphaltene conversion capabilities. Make the upflow process obtain the advantages of high hydrogenation activity and long service life

Method used

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  • An upflow residual oil hydrogenation reaction system and residual oil hydrogenation treatment method
  • An upflow residual oil hydrogenation reaction system and residual oil hydrogenation treatment method
  • An upflow residual oil hydrogenation reaction system and residual oil hydrogenation treatment method

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Experimental program
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Effect test

Embodiment 1

[0045] In the present embodiment, the hydrogenation reaction of the residue is hydrotreated with a top flow hydrogenation reactor. The upper flow reactor sets two catalyst beds having a volume ratio of 1: 1, and each catalyst bed is filled with a 420 ml catalyst, and the total amount of mounting catalyst is 840 mL. The first catalyst bed is made of a hydrotreating catalyst FZC-11ua, and the second catalyst bed is employed by hydrogenating treatment catalyst FZC-10U, wherein the catalyst properties are shown in Table 1.

[0046] The feed used is a typical Middle Eastern residue, and hydrogenous reaction is carried out in a hydrogenation reactor in the upper flow residue, which is mainly removed from impurities such as metal to obtain an upper flow hydrogen production oil. The main process conditions are shown in Table 2. The nature of the hydrogen generated by the upper flow reactor is shown in Table 3.

[0047] A material dispenser and a cold hydrogen tube are provided between eac...

Embodiment 2

[0053] In the present embodiment, the hydrogenation reaction of the residue is hydrotreated with a top flow hydrogenation reactor. The upper flow reactor is provided with three catalyst beds that fill 250 ml catalyst along the first catalyst bed along the stream direction. The second catalyst bed is filled with 300 ml catalyst, and the third catalyst bed is filled with 350 ml catalyst filling catalyst. The total amount is 900ml. The first bed of the upper flow reactor employs a hydrogenation treatment catalyst FZC-11UB, and the second bed is used to hydrotion treatment catalyst FZC-11ua, the third bed is used to hydrotion treatment catalyst FZC-10U.

[0054] The feed used is a typical Middle Eastern residue, and hydrogenous reaction is carried out in a hydrogenation reactor in the upper flow residue, which is mainly removed from impurities such as metal to obtain an upper flow hydrogen production oil. The main process conditions are shown in Table 4. The nature of the hydrogen gen...

Embodiment 1 and comparative example 1

[0062] Table 2 Example 1 and Comparative Example 1 Main Process Conditions

[0063] project Example 1 Comparative Example 1 Upgrade catalyst number First bed: FZC11U / second bed layer: FZC10U First bed: FZC10U / second bed layer: FZC11ua Reaction pressure, MPA 17.0 17.0 Volume vacancy, h -1

0.38 0.38 Hydrogen oil volume ratio 300 300 First bed temperature, ° C 370 373 Second bed temperature, ° C 378 380

[0064] Table 3 Embodiment 1 and Comparative Example 1 The main properties of the hydrogenated oil used

[0065] project Feeding 1 Example 1 Comparative Example 1 S, wt% 4.17 2.36 2.40 N, μg / g 3332 2353 2421 CCR, WT% 11.63 8.77 8.91 Density (20 ° C), Kg / M 3

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Abstract

The invention discloses an upflow type residue oil hydrogenation reaction system and a residue oil hydrogenation treatment method. The system includes: at least one upflow hydrogenation reactor, each upflow hydrogenation reactor is provided with at least two catalyst beds, and along the direction of liquid phase reactant flow, the activity of the hydrogenation treatment catalyst is from high to low. In addition, the invention also discloses a residue oil hydrogenation treatment method, in which residue oil feed and hydrogen pass through the upflow residue oil hydrogenation reactor system disclosed by the invention to obtain a hydrogenation treatment product. The method of the present invention overcomes the shortcomings of unstable catalyst bed temperature and difficult temperature control in current upflow reactors, and simultaneously has good hydrogenation performance and metal removal capacity, and has certain desulfurization and residual carbon and asphaltene conversion capabilities. , so that the upflow process has the advantages of high hydrogenation activity and long service life.

Description

Technical field [0001] The present invention relates to a hydrotreating the hydrocarbon feed and, particularly, is directed to a hydrogenation reactor system flow Residue and residue hydrotreating process employed. Background technique [0002] With the increasingly heavier crude oil, deteriorated, more and more heavy oil, residual oil requires processing. Heavy oil, residual oil cracking processing only want their product as a low boiling point, such as naphtha, middle distillates and a vacuum gas oil, but also to improve their ratio of hydrogen to carbon, or which need decarburization the method of hydrogenation is achieved. Wherein the decarburization process comprises coking, solvent deasphalting, cracking heavy oil and the like; hydrogenation processes include hydrocracking, hydrotreating, and other processing. Resid hydroconversion process both hydrogenation, to improve the yield of liquid product, but also the removal of heteroatoms therein, product quality, has obvious ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/08
CPCC10G45/08C10G2300/107C10G2300/1077C10G2300/202C10G2300/70
Inventor 刘铁斌朱慧红袁胜华韩坤鹏金建辉
Owner CHINA PETROLEUM & CHEM CORP
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