Method for treatment of heavy hydrocarbon raw material by up-flow reactor

A reactor, hydrogenation reactor technology, applied in chemical instruments and methods, chemical/physical processes, refining to remove heteroatoms, etc. High hydrogenation activity and high reaction efficiency

Active Publication Date: 2019-06-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the present invention applies the single type of catalyst to the upflow reactor, which overcomes the problems of many types of catalysts in the current upflow reactor, cumbersome loading and unloading, and back-mixing of different types of catalysts.

Method used

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  • Method for treatment of heavy hydrocarbon raw material by up-flow reactor
  • Method for treatment of heavy hydrocarbon raw material by up-flow reactor
  • Method for treatment of heavy hydrocarbon raw material by up-flow reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Weigh 1000g of water glass with a silicon oxide content of 30wt% and add it to the beaker, start the stirring device, slowly add 376g of nitric acid solution with a mass concentration of 62% into the beaker, stir and dissolve the pH value of the water glass solution in the beaker is 2.0, and then Add 62.5g of nickel nitrate, dissolve and then add 468g of pseudo-boehmite to the above solution (properties are as follows: pore volume is 0.985mL / g, specific surface area is 313m 2 / g, dry basis is 72wt%), after stirring evenly, add curing agent urea 83g, after the urea is completely dissolved, add deionized water, so that the material in the beaker is a paste with a certain fluidity, and is made of silica and oxide The solids content of aluminum was 33%.

[0049] The above paste is pressed into two identical hemispheres with spherical cavities. Among them, a guide mold is placed in a hemisphere, and the guide mold is made of wood. The structure of the guide mold is to make...

Embodiment 2

[0053] The preparation process is the same as in Example 1, except that the diameter of the spherical cavity of the mold and the diameter of the three cylinders in the guide mold are increased, and the prepared catalyst carrier B and catalyst B C See Table 1 for properties. The outer diameter of the obtained catalyst carrier B was about 7.6 mm, and the diameter of the through holes was about 3.8 mm.

Embodiment 3

[0055] The preparation process is as in Example 1, except that nickel nitrate is not added, and the solid content in terms of silica and alumina is 35%, the prepared catalyst carrier C and catalyst C CSee Table 1 for properties. The outer diameter of the obtained catalyst carrier C was about 5.3 mm, and the diameter of the through holes was about 2.0 mm.

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Abstract

The invention discloses a method for treatment of a heavy hydrocarbon raw material by an up-flow reactor. The method includes adopting at least one up-flow hydrogenation reactor, which internally hasat least two catalyst beds, each of which uses a same hydrogenation treatment catalyst. The hydrogenation treatment catalyst comprises a carrier and active components, wherein the carrier is a spherewith three through channels, the outer diameter of the sphere is 5.0-8.0mm, the three channels are all through-holes that pass through the center of the sphere and are perpendicular to each other in pairs, and the diameter of the through-holes is 30%-60% of the outer diameter of the sphere. The method provided by the invention adopts the specific catalyst, which has good hydrogenation performanceand demetalization and metal accommodation capacity, at the same time has certain desulfurization and carbon residue and asphaltene conversion capability, and has long service life. Moreover, the method overcomes the problems of large catalyst variety, tedious loading and unloading, backmixing of different catalysts and the like in current up-flow reactors.

Description

technical field [0001] The present invention relates to hydrocarbon feedstock hydrotreating technology, in particular to a method for processing heavy hydrocarbon feedstocks using an up-flow reactor. 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 should not only crack them into low-boiling products, such as naphtha, middle distillate oil and vacuum gas oil, etc., but also increase their hydrogen-carbon ratio, which requires decarbonization or hydrogenation method to achieve. Among them, the decarburization process includes coking, solvent deasphalting, heavy oil catalytic cracking, etc.; the hydrogenation process includes hydrocracking, hydrorefining, 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08B01J23/883B01J27/19B01J35/10
Inventor 刘铁斌翁延博
Owner CHINA PETROLEUM & CHEM CORP
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