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Hydrotreating method for heavy hydrocarbon raw material by adopting up-flow reactor

A reactor and hydrotreating technology, applied in the treatment of hydrocarbon oil, chemical instruments and methods, and petroleum industry, etc., can solve the problems of catalyst back-mixing, complicated loading and unloading of different types, etc. The effect of high hydrogenation activity

Pending Publication Date: 2020-05-05
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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  • Hydrotreating method for heavy hydrocarbon raw material by adopting up-flow reactor
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  • Hydrotreating method for heavy hydrocarbon raw material by adopting up-flow reactor

Examples

Experimental program
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Effect test

Embodiment 1

[0059] Taking by weighing silicon oxide content is the water glass 1071g of 28wt% and adds in the beaker, start stirring device, slowly add mass concentration in the beaker and be the nitric acid solution 370g of 65%, the pH value of water glass solution in the beaker after stirring and dissolving is 2.0, then Add 93.14g of nickel nitrate hexahydrate, dissolve and then add 585g of aluminum sol (the properties are as follows: the Al / Cl ratio is 1.40, the alumina content is 28wt%) and γ-Al 2 o 3 163.8g (the properties are as follows: the pore volume is 1.098mL / g, the specific surface area is 302m 2 / g), stir well and then add curing agent 93.6g hexamethylenetetramine, add deionized water after the hexamethylenetetramine is completely dissolved, so that the material in the beaker is a paste with certain fluidity, and The solids content based on silica and alumina was 33%.

[0060] The above paste mass is pressed into two identical hemispheres with spherical cavities. Wherein, ...

Embodiment 2

[0064] The preparation process is as in Example 1, except that the curing agent hexamethylenetetramine is changed to add 97.2g urea, the amount of nickel nitrate hexahydrate is changed to add 62.5g, and the prepared catalyst carrier B and catalyst B C The properties are shown in Table 1.

[0065] Wherein, the outer diameter of the catalyst carrier B obtained is about 5.5mm, the through-hole diameter of the first passage, the second passage and the third passage is about 1.5mm, and the length of the first passage, the second passage and the third passage is 5.5mm ; The lengths of the fourth channel, the fifth channel, the sixth channel and the seventh channel forming the square channel are all 4.2 mm, and the channel diameter is about 0.8 mm.

Embodiment 3

[0067] The preparation process is as in Example 1, except that the mold is replaced, the diameter of the cavity and the cylinder is increased, and the prepared catalyst carrier C and catalyst C C The properties are shown in Table 1.

[0068] Wherein, the outer diameter of gained catalyst carrier C is about 7.5mm, and the through hole diameter of the first passage, the second passage and the third passage is about 2.6mm, and the length of the first passage, the second passage and the third passage is 7.5mm , the lengths of the fourth channel, the fifth channel, the sixth channel and the seventh channel forming the square channel are all 6 mm, and the channel diameter is about 1.3 mm.

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Abstract

The invention discloses a method for processing a heavy hydrocarbon raw material by adopting up-flow reactors. The method comprises the following steps: at least one up-flow reactor is adopted, at least two catalyst bed layers are arranged in each up-flow reactor, and in each catalyst bed layer, a same hydrotreating catalyst is adopted; a carrier of the hydrotreating catalyst is spherical; the diameter of the carrier is 5.0 to 10.0 mm; wherein the carrier at least comprises seven channels penetrating through the carrier; the first channel, the second channel and the third channel penetrate through the sphere center of the catalyst carrier and are communicated with one another, every two channels are perpendicular to each other, the fourth channel, the fifth channel, the sixth channel and the seventh channel are connected end to end and communicated, and the total volume of the channels accounts for 20%-60% of the volume of the spherical carrier. The catalyst prepared by loading activemetal components on the catalyst carrier is high in void ratio, good in permeability and low in bed pressure, is particularly suitable for an up-flow residual oil hydrotreatment process, and has the characteristics of high hydrogenation activity, long service life and the like.

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): C10G45/04B01J8/02B01J23/755B01J35/04B01J35/10
CPCC10G45/04B01J8/0278B01J8/0292B01J8/0242B01J23/755C10G2300/205C10G2300/202C10G2300/70C10G2300/1077C10G2300/107C10G2300/1037B01J35/56B01J35/613B01J35/615B01J35/635B01J35/647
Inventor 刘铁斌朱慧红王永林蒋立敬袁胜华
Owner CHINA PETROLEUM & CHEM CORP
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