# US 8,785,340 B2 · Catalyst exhibiting hydrogen spillover effect

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,785,340 B2
- Document ID: US8785340B2
- Status: Granted
- Kind: B2
- Application number: 13/278,130
- Filed: 2011-10-20
- Published: 2012-02-16
- Granted: 2014-07-22
- Earliest claimed: 2009-03-23
- Assignees: King Fahd University of Petroleum and Minerals
- Applicants: Takuma Kimura; Mohammad Abdullah Al-Saleh; Halim Hamid Redhwi; Mohammad Ashraf Ali; Shakeel Ahmed; Masayuki Inui
- Inventors: Tomoyuki Inui; Takuma Kimura; Mohammad Abdullah Al-Saleh; Halim Hamid Redhwi; Mohammad Ashraf Ali; Shakeel Ahmed
- Web page: https://patentgrep.com/patent/US8785340B2

## CPC

- B01J 37/0201: {Impregnation}
- B01J 21/16: Clays or other mineral silicates
- B01J 23/652: Chromium, molybdenum or tungsten
- B01J 23/89: combined with noble metals
- B01J 23/8913: {Cobalt and noble metals}
- B01J 35/615: {100-500 m2/g}
- B01J 35/617: {500-1000 m2/g}
- B01J 35/633: {less than 0.5 ml/g}
- B01J 35/635: {0.5-1.0 ml/g}
- B01J 37/0205: {in several steps}
- B01J 37/18: with gases containing free hydrogen
- C10G 29/205: {by reaction with hydrocarbons added to the hydrocarbon oil}
- C10G 45/10: containing platinum group metals or compounds thereof
- C10G 47/14: the catalyst containing platinum group metals or compounds thereof
- 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

The catalyst exhibiting hydrogen spillover effect relates to the composition of a catalyst exhibiting hydrogen spillover effect and to a process for preparing the catalyst. The catalyst has a reduced transition base metal of Group VIB or Group VIIIB, such as cobalt, nickel, molybdenum or tungsten, supported on a high porous carrier, such as saponite, the base metal being ion-exchanged with at least one precious metal of Group VIIIB. The process includes the steps of loading the base metal onto the support, reducing the base metal, preferably with H2 at 600° C., and thereafter ion-exchanging the precious metal with the base metal. Preferred examples of the catalyst include a saponite support loaded with about 10-20 wt % cobalt and about 0.1-1 wt % precious metal. The catalyst is optimized for reactions that occur in commercial processes at about 360-400° C., such as in hydrocracking.

## Claims

### Claim 1

A catalyst exhibiting hydrogen spillover effect for hydrocracking aromatic feedstocks, consisting essentially of:
a porous support made from saponite clay, the porous support having a surface area between 400 and 600 m2/g and a total pore volume between 0.45 and 0.75 ml/g;
palladium loaded on the porous support, the palladium being reduced by H2 at about 600° C. after being loaded on the porous support, the reduced palladium forming about 1 wt % of the catalyst;
a base metal impregnated on the reduced palladium-loaded saponite support, the base metal being cobalt and oxides or salts thereof, a portion of the cobalt and oxides or salts thereof being reduced by H2 at about 600° C. after being impregnated on the support; and
rhodium or water soluble salts or oxides thereof ion-exchanged with the reduced cobalt and oxides or salts thereof and the reduced palladium and forming about 0.1 wt % of the catalyst, wherein the catalyst exhibits maximum hydrogen spillover effect between 360° C. and 400° C.

### Claim 2 (depends on 1)

The catalyst according to claim 1, wherein said cobalt comprises between about 10 wt % and about 20 wt % of the catalyst as the reduced metal and oxides or salts thereof.

### Claim 3

A catalyst exhibiting hydrogen spillover effect for hydrocracking aromatic feedstocks prepared by a process comprising the steps of:
contacting a high pore saponite support with an aqueous solution of a soluble salt of palladium for a period between one and 5 hours in order to obtain a composition including between 1 and 2% by weight of palladium on the saponite support, based on the dry weight of the final catalyst;
reducing the palladium by H2 at 600° C.;
impregnating the palladium-loaded saponite support with a soluble salt of cobalt in order to obtain a composition including between 1% and 20% by weight of cobalt as the oxide thereof, based on the dry weight of the catalyst;
reducing a portion of the cobalt oxide on the palladium-loaded saponite support by H2 at 600° C.; and
contacting the partially reduced cobalt-cobalt oxide, reduced palladium-loaded saponite support with a water soluble salt or oxide of rhodium in order to incorporate the rhodium by ion exchange, the rhodium forming about 0.1% by weight of the dry weight of the final catalyst wherein the final catalyst exhibits maximum hydrogen spillover effect between 360° C. and 400° C.