Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of hydrocracking catalyst

A hydrocracking and catalyst technology, applied in the direction of physical/chemical process catalysts, molecular sieve catalysts, chemical instruments and methods, etc., can solve the problems that affect the performance of catalysts, cannot control the distribution of hydrogenation active metals well, and are not conducive to equal activity

Active Publication Date: 2019-07-23
CHINA PETROLEUM & CHEM CORP +1
View PDF11 Cites 0 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Dissolve nickel chloride, ammonium metatungstate, polymaleic acid (molecular weight 450) and hydroxyethylene diphosphonic acid in deionized water respectively to prepare mixed solution A. The weight concentration of Ni in mixed solution A is calculated as NiO 42g / L, W is WO 3 The weight concentration of the meter is 30g / L, the weight concentration of polymaleic acid (molecular weight: 450) is 9g / L, and the weight concentration of hydroxyethylene diphosphonic acid is 11g / L. Ammonium metatungstate, aluminum chloride and citric acid were dissolved in deionized water respectively, and dilute water glass solution was added to prepare mixed solution B. In mixed solution B, W was replaced by 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 citric acid is 19g / L. 500mL deionized water is added in the reaction tank, and the weight...

Embodiment 2

[0065] According to the method for embodiment 1, press the component content ratio of catalyst B in table 1, add nickel nitrate, ammonium metatungstate, zirconium oxychloride and ethylenediaminetetramethylene phosphonic acid in dissolution tank 1, Prepare mixed solution A, add ammonium metatungstate, aluminum chloride and tartaric acid into the dissolving tank 2 to dissolve in deionized water, add water glass, prepare mixed solution B, add 700mL deionized water into the reaction tank, and adjust the weight concentration to Take Al 2 o 3 40g / L sodium metaaluminate solution and mixed solution A are added into the reaction tank in parallel flow, the gelling temperature is kept at 60°C, the pH value is controlled at 7.4 during the concurrent gelling reaction process, and the gelling time is controlled at 60 minutes , Generate slurry I containing nickel, tungsten, aluminum, zirconium precipitate. The obtained sediment slurry I was aged, the aging temperature was 76° C., the aging...

Embodiment 3

[0067] According to the method of Example 1, according to the component content ratio of catalyst C in Table 1, nickel chloride, ammonium metatungstate and amino trimethylene phosphonic acid are added to the dissolution tank 1, and the mixed solution A is prepared, and dissolved Add aluminum chloride, ammonium metatungstate and citric acid in tank 2 and dissolve them in deionized water, add water glass to prepare mixed solution B, add 800mL deionized water to the reaction tank, and make the weight concentration equal to Al 2 o 336g / L sodium metaaluminate solution and mixed solution A are added into the reaction tank in parallel flow, the gelling temperature is kept at 50°C, the pH value is controlled at 7.8 during the concurrent gelling reaction process, and the gelling time is controlled at 70 minutes , Generate slurry I containing nickel, tungsten, and aluminum precipitates. The obtained precipitate slurry I was aged, the aging temperature was 78° C., the aging pH value was...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
lengthaaaaaaaaaa
specific surface areaaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a hydrocracking catalyst. The method comprises the following steps: a mixed solution A containing Ni and W, an organic aid P1 and a sodium metaaluminatealkaline solution flow in parallel for a reaction, and obtained slurry is aged; a mixed solution B containing W, Si and Al, an organic aid P2 and ammonia water are added to the aged slurry in parallel flow for a reaction, and a molecular sieve suspension is added for aging; steps including drying, forming and the like are performed, and the hydrocracking catalyst is prepared. The hydrocracking catalyst is applicable as a medium oil type hydrocracking catalyst and has good activity and selectivity.

Description

technical field [0001] The invention relates to a preparation method of a hydrocracking catalyst for treating heavy hydrocarbons, in particular to a preparation 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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C10G47/20B01J29/16
CPCB01J29/166C10G47/20C10G2300/70
Inventor 徐学军王海涛王继锋刘东香冯小萍
Owner CHINA PETROLEUM & CHEM CORP