# US 10,864,503 B2 · Process for the preparation of a hydrocracking catalyst

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- Number: US 10,864,503 B2
- Document ID: US10864503B2
- Status: Granted
- Kind: B2
- Application number: 14/428,496
- Filed: 2013-09-16
- Published: 2015-10-01
- Granted: 2020-12-15
- Earliest claimed: 2012-09-17
- Assignees: Shell Oil Company
- Applicants: Shell Oil Company
- Inventors: Hermanus Jongkind; Wiebe Sjoerd Kijlstra; Bart Pelgrim; Marcello Stefano Rigutto; Ferry Winter
- Web page: https://patentgrep.com/patent/US10864503B2

## CPC

- B01J 29/166: {Y-type faujasite}
- B01J 21/04: Alumina
- B01J 23/883: and nickel
- B01J 23/888: Tungsten
- B01J 23/8885: {containing also molybdenum}
- B01J 29/146: {Y-type faujasite}
- B01J 31/06: containing polymers {(organometallic polymers B01J31/123; polymer-bound organometallic complexes B01J31/165; coordination polymers B01J31/1691)}
- B01J 35/19: {Catalysts containing parts with different compositions}
- B01J 37/0203: {the impregnation liquid containing organic compounds}
- B01J 37/0205: {in several steps}
- B01J 37/0213: {Preparation of the impregnating solution}
- B01J 37/04: Mixing {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/08: Heat treatment {(B01J37/0009, B01J37/0018 take precedence)}
- B01J 37/20: Sulfiding
- C10G 47/20: the catalyst containing other metals or compounds thereof
- B01J 2229/16: to increase the Si/Al ratio; Dealumination
- B01J 2229/186: not in framework positions
- B01J 2229/42: Addition of matrix or binder particles
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES

## Abstract

This invention relates to a process for the preparation of a hydrocracking catalyst and its use. A zeolite Y having specifically defined properties is mixed with an alumina binder component and a first metals-containing solution that is extruded to form an extruded mixture. The extruded mixture is dried and calcined. The dried and calcined mixture is then impregnated with a second metals-containing solution.

## Claims

### Claim 1

A process for the preparation of a hydrocracking catalyst, which comprises the steps of:
(a) mixing a zeolite Y, having a unit cell size in the range of from 24.42 to 24.52 Å, a bulk silica to alumina molar ratio (SAR) in the range of from 10 to 15, and a surface area of from 910 to 1020 m2/g, with an alumina binder component, a first Group VIB metal component, and a first Group VIII metal component, which at least one of the metal components is contained in at least one first metal-containing acidic aqueous solution, to thereby provide a mixture, wherein the zeolite Y is present in the mixture in an amount of 40 wt. % or greater, based on the total weight of the zeolite Y and the alumina binder component;
(b) extruding the mixture to provide an extruded mixture;
(c) drying the extruded mixture to provide a dried and extruded mixture;
(d) calcining the dried and extruded mixture to provide a calcined product;
(e) impregnating the calcined product with a second Group VIB metal component and a second Group VIII metal component, which at least one of the metal components is contained in at least one second metal-containing solution to provide an impregnated product; and
(f) calcining the impregnated product at a temperature in the range of from 350° C. to 850° C.

### Claim 2 (depends on 1)

A process according to claim 1, wherein the impregnation in step (e) is carried out in the presence of a hydroxy carboxylic acid.

### Claim 3 (depends on 2)

A process according to claim 2, wherein the hydroxy carboxylic acid comprises gluconic acid, malic acid, tartaric acid, citric acid or a mixture thereof.

### Claim 4 (depends on 3)

A process according to claim 3, wherein the hydroxy carboxylic acid is citric acid or malic acid.

### Claim 5 (depends on 1)

A process according to claim 1, wherein the second metals-containing solution comprises the hydroxy carboxylic acid.

### Claim 6 (depends on 5)

A process according to claim 5, wherein the hydrocracking catalyst comprises Group VIB metal in an amount in the range of 10-24 wt. %, and a non-noble Group VIII metal is present in an amount in the range of from 3-10 wt. %, both weights being based on the total weight of the hydrocracking catalyst.

### Claim 7 (depends on 6)

A process according to claim 6, wherein the first metal-containing solution, comprises nickel and tungsten, and the second metal-containing solution, comprises nickel and a Group VIB metal selected from the group consisting of tungsten and molybdenum.

### Claim 8 (depends on 7)

A process according to claim 7, wherein step (c) is carried out at a temperature in the range of from 100° C. to 300° C.

### Claim 9 (depends on 1)

A process according claim 1, wherein step (d) is carried out at a temperature in the range of from 500° C. to 850° C.

### Claim 10 (depends on 1)

A process according to claim 1, wherein the calcined product as obtained in step (f) is subjected to a sulfidation step.

### Claim 11 (depends on 1)

A process for hydrocracking a hydrocarbonaceous feedstock, which process comprises contacting the feedstock at elevated temperature with a hydrocracking catalyst as prepared by a process as claimed in claim 1.

### Claim 12 (depends on 11)

A process according to claim 11, which process comprises contacting the feedstock with the catalyst composition at a reaction temperature in the range of from 250 to 500° C. and a total pressure at the reactor inlet in the range of from 3 ×106 to 3 ×107 Pa.