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A kind of sulfurized hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and vulcanization-type technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of complex process and high carbon content requirements, achieve high capacity, avoid The effect of active metal agglomeration and high hydrogenation activity

Active Publication Date: 2022-04-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the outstanding disadvantages of preparing catalysts by this method are that the process is complex, the carbon content in the carrier is high, and the catalyst is in an oxidized state, which requires catalyst sulfuration before the reaction.

Method used

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  • A kind of sulfurized hydrogenation catalyst and preparation method thereof
  • A kind of sulfurized hydrogenation catalyst and preparation method thereof
  • A kind of sulfurized hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Catalyst preparation

[0053] Weigh 600g of ammonium phosphate, dissolve it in 2000mL of deionized water to obtain solution A; grind 1000g of sulfur-containing petroleum coke to powder, then add it to solution A, leave it for 1.5h, and then filter, and put the obtained solid sample in an oven at 110 Dry at ℃ for 5h. At 200°C, pretreat the dried solid sample with water vapor for 3 hours (the volumetric space velocity of the water vapor gas is 1200 hours -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0054] Mix 1000g of the pretreated petroleum coke obtained above and 60g of calcium carbonate uniformly, place in a microwave heating furnace with a microwave frequency of 2450MHz, and treat at 650°C for 2h under a nitrogen atmosphere under the condition of a microwave power of 0.3kw. After cooling, grind the above sample into powder, mix it with a hydrochlor...

Embodiment 2

[0060] (1) Catalyst preparation

[0061] Weigh 500g of diammonium hydrogen phosphate, dissolve it in 2000mL of deionized water to obtain solution A; grind 1000g of sulfur-containing petroleum coke into powder, then add it to solution A, let it stand for 1.5h, then filter, and put the obtained solid sample in an oven Dry at 110°C for 5h. At 200°C, pretreat the dried solid sample with water vapor for 3 hours (the volumetric space velocity of the water vapor gas is 1000 hours -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0062] 1000g of the pretreated petroleum coke obtained above and 70g of calcium carbonate were mixed evenly, placed in a microwave heating furnace with a microwave frequency of 2450MHz, and treated under a nitrogen atmosphere at 650°C for 2h under the condition of a microwave power of 0.3kw. After cooling, grind the above sample into powder, mix it ...

Embodiment 3

[0068] (1) Catalyst preparation

[0069] Weigh 400g of ammonium dihydrogen phosphate, dissolve it in 2000mL of deionized water to obtain solution A; grind 1000g of sulfur-containing petroleum coke into powder, then add it to solution A, let it stand for 1.5h, then filter, and put the obtained solid sample in an oven Dry at 110°C for 5h. At 200°C, pretreat the dried solid sample with water vapor for 3 hours (the volumetric space velocity of the water vapor gas is 800 hours -1 ), then raise the temperature to 400°C, continue pretreatment for 3h, and then cool to 60°C under nitrogen protection to obtain pretreated petroleum coke.

[0070] 1000g of the pretreated petroleum coke obtained above and 80g of calcium carbonate were uniformly mixed, placed in a microwave heating furnace with a microwave frequency of 2450MHz, and treated at 650°C for 2h under a nitrogen atmosphere under the condition of a microwave power of 0.3kw. After cooling, grind the above sample into powder, mix i...

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Abstract

The invention discloses a sulfurized hydrogenation catalyst and a preparation method thereof. The preparation method mixes sulfur-containing petroleum coke and a pore-enlarging agent, and the obtained sample is treated in an acid solution after being cooled, and then washed and dried. Mix with the active metal component precursor and activator, and activate after mixing evenly; the sample obtained after activation is treated with oxygen-containing gas, and then washed and dried after cooling to obtain a sulfurized hydrogenation catalyst. The active metal component of the catalyst is well dispersed on the carrier, has a weaker interaction with the active metal component to make the vulcanization more complete, and is easy to form more high hydrogenation active centers, so that the catalyst has higher hydrogenation activity.

Description

technical field [0001] The invention belongs to the technical field of oil refining and chemical industry, and relates to a catalytic material and a preparation method thereof, in particular to a sulfurized hydrodesulfurization catalyst and a preparation method thereof. Background technique [0002] As the sulfur content in vehicle fuel standards decreases year by year, hydrodesulfurization has become the main way to process inferior raw materials to produce clean fuel. The activity of hydrodesulfurization catalyst determines the economic benefit of the whole hydrodesulfurization process. Highly active hydrodesulfurization catalysts can produce low-sulfur products under moderate conditions, thereby prolonging the operating cycle and saving operating costs. [0003] Hydrodesulfurization catalysts usually use Group VIB and Group VIII metals as active components, and various additives can be added to improve catalyst activity. During the preparation of the catalyst, the unifo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/051B01J35/10C10G45/08
CPCB01J27/0515B01J35/1023B01J35/1047C10G45/08C10G2300/202
Inventor 金浩刘璐朱慧红杨光孙素华杨涛
Owner CHINA PETROLEUM & CHEM CORP
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