A kind of heavy oil hydrogenation demetallization catalyst and its preparation method and application

A heavy oil hydrogenation and catalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of low surface acidity of catalysts, lack of large pores in catalysts, etc. problem, to improve the removal performance, reduce the probability of clogging, and reduce the effect of deposition

Active Publication Date: 2015-07-29
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst prepared by this method has lower surface acidity and less carbon deposition on the catalyst, but the catalyst lacks large pores to meet the needs of macromolecular diffusion.

Method used

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  • A kind of heavy oil hydrogenation demetallization catalyst and its preparation method and application

Examples

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Effect test

Embodiment 1

[0037] This embodiment provides a method for preparing an alumina carrier, the specific process is as follows:

[0038] Dissolve 26.51g of ammonium heptamolybdate in 50mL of 30% hot concentrated ammonia water, weigh 50g of activated carbon powder and add it to the solution and mix well to obtain wet activated carbon saturated with adsorbed metal solution;

[0039] Weigh 250g of macroporous alumina dry rubber powder, add 50g of pseudoboehmite and 7.5g of safflower powder; add wet activated carbon to macroporous alumina dry rubber powder, then add 325mL of 12g nitric acid (concentration is 65wt%) Concentrated nitric acid) deionized aqueous solution, make it mix evenly, obtain the alumina dry rubber powder material 1 of mesoporous pre-loaded active metal;

[0040] Then take by weighing 250g of macroporous alumina dry rubber powder, add 50g of pseudoboehmite and 7.5g of safflower powder, add 375mL of deionized aqueous solution containing 170g of ammonium bicarbonate, 4.70g of diam...

Embodiment 2

[0045] This embodiment provides a method for preparing an alumina carrier, the specific process is as follows:

[0046] Dissolve 26.51g of ammonium heptamolybdate in 60mL of 30% hot concentrated ammonia water, weigh 60g of activated carbon powder and add it to the solution and mix well to obtain wet activated carbon saturated with metal solution;

[0047] Weigh 250g of macroporous alumina dry rubber powder, add 50g of pseudoboehmite and 7.5g of safflower powder; add wet activated carbon to macroporous alumina dry rubber powder, then add 315mL of nitric acid containing 12g (concentration is 65wt%) Concentrated nitric acid) deionized aqueous solution, make it mix evenly, obtain the alumina dry rubber powder material 1 of mesoporous pre-loaded active metal;

[0048] Then weigh 250g of macroporous alumina dry rubber powder, add 50g of pseudoboehmite and 7.5g of scallop powder, add 375mL of deionized aqueous solution containing 180g of urea and 21.39g of ammonium dihydrogen phospha...

Embodiment 3

[0053] This embodiment provides a method for preparing an alumina carrier, the specific process is as follows:

[0054] Dissolve 38.81g of ammonium heptamolybdate in 60mL of 30% hot concentrated ammonia water, weigh 60g of activated carbon powder and add it to the solution and mix well to obtain wet activated carbon saturated with metal solution;

[0055] Weigh 300g of macroporous alumina dry rubber powder, add 7.5g of starch; add wet activated carbon to macroporous alumina dry rubber powder, and then add 315mL deionized aqueous solution containing 8g of nitric acid (concentrated nitric acid with a concentration of 65wt%), Make it mix evenly, obtain the alumina dry rubber powder material 1 of mesoporous pre-loaded active metal;

[0056] Then weigh 250g of macroporous alumina dry rubber powder, add pseudoboehmite 50g, safflower powder 7.5g, add 375mL deionized aqueous solution containing ammonium oxalate 190g, ammonium dihydrogen phosphate 15.56g and phosphoric acid 13.60g, mak...

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Abstract

The invention provides a heavy oil hydrogenation demetalization catalyst as well as a preparation method and application of the heavy oil hydrogenation demetalization catalyst. The preparation method comprises the following steps: adding a physical pore-enlarging agent into a metal salt solution containing Mo or W so as to obtain a wet powder pore-enlarging agent; mixing aluminum oxide dry glue powder with the wet powder pore-enlarging agent so as to obtain an aluminum oxide dry glue powder material 1; adding the chemical pore-enlarging agent and a phosphorous compound containing solution to the aluminum oxide dry glue powder so as to obtain an aluminum oxide dry glue powder material 2; mixing the aluminum oxide dry glue powder material 1 with the aluminum oxide dry glue powder material 2 so as to obtain wet materials; drying the wet materials, and roasting so as to obtain an aluminum oxide carrier; and dipping the aluminum oxide carrier into a metal salt solution containing one of Mo and W and / or one of Co and Ni, drying, and roasting, thereby obtaining the heavy oil hydrogenation demetalization catalyst. The invention also provides the heavy oil hydrogenation demetalization catalyst. The catalyst provided by the invention not only has favorable hydrogenation demetalization activity, but also has favorable metal and carbon deposit accommodating performance.

Description

technical field [0001] The invention relates to a heavy oil hydrodemetallization catalyst and its preparation method and application, in particular to a catalyst with mesoporous / macropore composite channels and its preparation method and application, belonging to the technical field of molecular sieve preparation. Background technique [0002] As the trend of heavy and inferior crude oil in the world continues to intensify, the proportion of inferior heavy oil in crude oil continues to increase, making the main processing object faced by refineries is even lower quality heavy oil. Therefore, the processing of inferior heavy oil has become a refinery technology. The focus of development and the basis for improving economic efficiency. The salient features of low-quality heavy oil are high content of metals, colloids and asphaltene, and poor processability. Hydrotreating is an important process to improve the processability of inferior heavy oil and increase the yield of ligh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/883B01J23/888B01J35/10C10G45/08
Inventor 周亚松刘亭亭魏强张涛丁思佳陶秀娟
Owner BC P INC CHINA NAT PETROLEUM CORP
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