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

A reactor and hydrotreating technology, used in chemical instruments and methods, refined hydrocarbon oil, petroleum industry, etc., can solve the problems of complicated loading and unloading of different types, catalyst back-mixing, etc., and achieve good reaction channels, high hydrogenation activity, Long-lasting effects

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

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Take by weighing 400 g of water glass with a silicon oxide content of 30 wt % and add it to the beaker, start the stirring device, slowly add 150 g of nitric acid solution with a mass concentration of 62% in the beaker, then add 42.9 g of nickel nitrate, stir and dissolve the water glass solution in the beaker The pH value is 2.0, then add 385.3g pseudo-boehmite (the properties are as follows: pore volume 1.05mL / g, specific surface area is 306m 2 / g, dry basis is 70wt%), after stirring evenly, add 35g of curing agent urea, after the urea is completely dissolved, add deionized water, so that the material in the beaker is a paste with certain fluidity, and silicon dioxide and oxide The solids content is 33% based on aluminum.

[0050] The above paste mass is pressed into two identical hemispheres with spherical cavities. Wherein, a guide mold is placed in a hemisphere, and the guide mold is made of wood. The structure of the guided mode is that there is a cylinder in th...

Embodiment 2

[0055] The preparation process is as in Example 1, except that the solid content of silica and alumina is 35%, and the mold is replaced, the diameter of the cavity and cylinder is increased, and the prepared catalyst carrier B and catalyst B C, whose properties are shown in Table 1. Wherein, the outer diameter of the obtained catalyst carrier B is about 9.5 mm, the diameter of the middle through hole is about 3.0 mm, and the diameter of the side through hole is about 1.6 mm.

Embodiment 3

[0057] The preparation process is as in Example 1, except that nickel nitrate is not added, the prepared catalyst carrier C and catalyst C C , whose properties are shown in Table 1. Wherein, the outer diameter of the obtained catalyst carrier C is about 7.0 mm, the diameter of the middle through hole is about 1.9 mm, and the diameter of the side through hole is about 1.3 mm.

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Abstract

The invention discloses a method for treatment of a heavy hydrocarbon raw material with an up-flow reactor. The method includes adopting at least one up-flow hydrogenation reactor, in which at least two catalyst beds are disposed, and each catalyst bed adopts a same hydrotreating catalyst; the carrier of the hydrotreating catalyst is a sphere with three-dimensional through channels, the carrier has seven through-holes including middle through-holes and side through-holes, wherein the outer diameter of the sphere is 6.0-10.0mm, the diameter of middle through-holes is 25%-40% of the outer diameter of the sphere, and the diameter of the side through-holes is 10%-20% of the outer diameter of the sphere. The method provided by the invention adopts the specific catalyst, which has good hydrogenation performance and 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 provided by the invention 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 invention relates to a technology for processing hydrocarbon raw materials, in particular to a method for processing heavy hydrocarbon raw materials using an upflow 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 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 ...

Claims

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Application Information

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IPC IPC(8): C10G45/14C10G45/08B01J27/19B01J35/08
Inventor 耿新国刘铁斌
Owner CHINA PETROLEUM & CHEM CORP
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