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A kind of production method of hydrocracking catalyst

A technology for hydrocracking and production methods, applied in physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve problems that are not conducive to the effective coordination of hydrogenation metals and acidic components, affect catalyst performance, and are not conducive to activity. equality problem

Active Publication Date: 2021-12-07
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The above method cannot control the distribution of hydrogenation active metals well, thereby affecting the distribution of different hydrogenation active metals, which is not conducive to the formation of effective active phases, and is not conducive to the effective coordination of hydrogenation metals and acidic components, and ultimately affects the performance of the catalyst.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Dissolve nickel chloride, ammonium metatungstate, and sodium α-alkenyl sulfonate (the number of C atoms is 16) in deionized water to prepare a mixed solution A. The weight concentration of Ni in the mixed solution A is 42g / L, the weight concentration of sodium α-alkenyl sulfonate is 35g / L. Dissolve ammonium metatungstate and aluminum chloride in deionized water respectively, add dilute water glass solution, mix well, then continue to add polyethylene glycol (molecular weight 6000) to prepare mixed solution B. In mixed solution B, W and WO 3 The weight concentration of Al is 24g / L, Al is Al 2 o 3 The weight concentration of the meter is 28g / L, Si is SiO 2 The weight concentration of meter is 40g / L, and the weight concentration of polyethylene glycol is 92g / L. Deionized water is added in the reaction tank, and the weight concentration is based on Al 2 o 3 32g / L sodium metaaluminate solution and mixed solution A are added into the reaction tank in parallel flow, the...

Embodiment 2

[0064] According to the method of Example 1, according to the component content ratio of catalyst B in Table 1, nickel nitrate, ammonium metatungstate, zirconium oxychloride are added in the dissolution tank 1, and the mixed solution A is prepared, and the solution is added to the dissolution tank 2. Add ammonium metatungstate and aluminum chloride dissolved in deionized water, add water glass, mix well, add polyethylene glycol (molecular weight: 4000) to prepare mixed solution B, the weight concentration of polyethylene glycol is 76g / L. Deionized water and sodium cetyl benzene sulfonate are added in the reaction tank, the addition of sodium cetyl benzene sulfonate is based on the volume of mixed solution A, and the weight concentration of sodium cetyl benzene sulfonate is 36g / L. The weight concentration is expressed as Al 2 o 3 The sodium metaaluminate solution of 30g / L and the mixed solution A are added into the reaction tank in parallel flow, the gelling temperature is ke...

Embodiment 3

[0066] According to the method of Example 1, according to the component content ratio of catalyst C in Table 1, nickel chloride, ammonium metatungstate and sodium lignosulfonate were added to the dissolution tank 1 to prepare mixed solution A, lignosulfonate The weight concentration of sodium bicarbonate is 43g / L. Add aluminum chloride and ammonium metatungstate in deionized water to the dissolution tank 2, add water glass, mix well, add polyethylene glycol (molecular weight is 8000), prepare mixed solution B, the weight concentration of polyethylene glycol It is 115g / L. Deionized water is added in the reaction tank, and the weight concentration is based on Al 2 o 3Add 48g / L sodium metaaluminate solution and mixed solution A into the reaction tank in parallel, keep the gelling temperature at 55°C, control the pH value at 7.6 during the concurrent gelling reaction process, and control the gelling time at 1.1 hours , Generate slurry I containing nickel, tungsten, and aluminum...

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Abstract

The invention discloses a production method of a hydrocracking catalyst. The method is to first react the mixed solution A containing Ni and W with the alkaline solution of sodium metaaluminate in parallel flow, wherein a surfactant is added before and / or during the reaction, and the resulting slurry is aged, and the W-containing , Si, Al component mixed solution B and ammonia water are added to the above-mentioned aged slurry to react, and polyethylene glycol is added in the reaction process, and then the molecular sieve suspension is added for aging, and then dried, Forming and other post-processing steps to make hydrocracking catalyst. The hydrocracking catalyst is suitable for medium oil type hydrocracking catalyst and has good activity and selectivity.

Description

technical field [0001] The invention relates to a production method of a hydrocracking catalyst for treating heavy hydrocarbons, in particular to a production method of a bulk phase hydrocracking catalyst. Background technique [0002] Hydrocracking is carried out under relatively high pressure. Hydrocarbon molecules and hydrogen undergo cracking and hydrogenation reactions on the catalyst surface to generate lighter molecules. At the same time, hydrodesulfurization, denitrogenation and hydrogenation of unsaturated hydrocarbons also occur reaction. The cracking reaction of hydrocarbons in the hydrocracking process is carried out on the acidic center of the catalyst, following the carbon ion reaction mechanism, hydrogenation and cracking reactions are accompanied by the occurrence of hydrocarbon isomerization reactions. [0003] The hydrocracking catalyst is composed of a hydrogenation component and an acidic component. The two are added in a certain proportion as required t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/16C10G45/12C10G45/08
CPCB01J29/166B01J2229/186C10G45/08C10G45/12C10G2300/202
Inventor 王继锋冯小萍王海涛徐学军刘东香
Owner CHINA PETROLEUM & CHEM CORP