# US 8,148,288 B2 · Bimetallic or multi-metallic catalyst that has an optimized bimetallicity index and an optimized hydrogen adsorption capacity > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,148,288 B2 - Document ID: US8148288B2 - Status: Granted - Kind: B2 - Application number: 12/520,702 - Filed: 2007-12-07 - Published: 2010-02-25 - Granted: 2012-04-03 - Earliest claimed: 2006-12-22 - Assignees: Ifp Energies Nouvelles - Inventors: Pierre-Yves Le Goff; Fabienne Le Peltier; Jean Giraud; Sylvie Lacombe; Christophe Chau - Web page: https://patentgrep.com/patent/US8148288B2 ## CPC - B01J 23/622: {with germanium, tin or lead} - B01J 27/135: with titanium, zirconium, hafnium, germanium, tin or lead - B01J 27/1856: {with platinum group metals} - B01J 37/0205: {in several steps} - B01J 37/0207: {Pretreatment of the support} - B01J 37/024: {Multiple impregnation or coating} - C10G 35/09: Bimetallic catalysts in which at least one of the metals is a platinum group metal - B01J 35/36: Mechanical strength - 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 invention relates to a catalyst that comprises a metal M from the group of platinum, at least one promoter X1 that is selected from the group that consists of tin, germanium, and lead, and optionally at least one promoter X2 that is selected from the group that consists of gallium, indium and thallium, a halogenated compound and a porous substrate, in which the atomic ratio X1/M and optionally X2/M is between 0.3 and 8, the Hir/M ratio that is measured by hydrogen adsorption is greater than 0.40, and the bimetallicity index BMI that is measured by hydrogen/oxygen titration is greater than 108. The invention also relates to the process for the preparation of this catalyst and a reforming process using said catalyst. ## Claims ### Claim 1 A catalyst that comprises a metal M from the platinum group, at least one promoter X1 from the group of tin, germanium, and lead, a halogenated compound, and a porous substrate, in which the X1/M atomic ratio is between 0.3 and 8, the Hir/M ratio that is measured by hydrogen adsorption is more than 0.40, and the bimetallicity index BMI that is measured by hydrogen/oxygen titration is more than 108, produced by a process comprising the following sequential steps: a) Introduction of a fraction of the promoter X1 into the substrate or on the substrate, c) Calcination of the product that is obtained in stage a, d) Deposition on resultant calcined product of step (c) of at least one metal from the platinum group M, e) Optional drying under neutral atmosphere or atmosphere containing oxygen, at a moderate temperature, f) Deposition of a complementary fraction of the promoter X1 on the product that is obtained in stage d or e, and h) Calcination of the product that is obtained in stage f with at least one of the following provisions for providing halogen to the catalyst: at least one of promoter X1 and metal of platinum group M is a precursor containing halogen; or there is introduced a halogenated compound or a halogen at one or more stages. ### Claim 2 (depends on 1) A catalyst according to claim 1, also comprising at least one promoter X2 from the group of gallium, indium, and thallium, whereby the X2/M ratio is between 0.3 and 8. ### Claim 3 (depends on 2) A catalyst according to claim 2, in which the (X1+X2)/M ratio is between 0.3 and 8. ### Claim 4 (depends on 2) A catalyst according to claim 2, in which the X1/M ratio is between 1.0 and 2.9, and the X2/M ratio is between 0.9 and 4. ### Claim 5 (depends on 2) A catalyst according to claim 2, comprising a promoter X1 and a promoter X2 and in which X1 is tin and X2 is indium. ### Claim 6 (depends on 2) A catalyst according to claim 2, wherein said at least one promoter X1 is tin, said at least one promoter X2 is indium and said metal M from the platinum group is platinum. ### Claim 7 (depends on 1) A catalyst according to claim 1, in which the X1/M atomic ratio is between 0.6 and 6. ### Claim 8 (depends on 1) A catalyst according to claim 1, comprising only one promoter X1 and in which X1 is tin. ### Claim 9 (depends on 8) A catalyst according to claim 8, in which the phosphorus content is between 0.01 and 5% by weight. ### Claim 10 (depends on 1) A catalyst according to claim 1, in which the catalyst also comprises phosphorus. ### Claim 11 (depends on 1) A catalyst according to claim 1, in which the Hir/M ratio is between 0.43 and 0.9. ### Claim 12 (depends on 1) A catalyst according to claim 1, in which the Hir/M ratio is between 0.45 and 0.65. ### Claim 13 (depends on 1) A catalyst according to claim 1, in which the bimetallicity index BMI that is measured by hydrogen/oxygen titration is greater than 115. ### Claim 14 (depends on 1) A catalyst according to claim 1, in which the bimetallicity index BMI that is measured by hydrogen/oxygen titration is between 110 and 160. ### Claim 15 (depends on 14) A catalyst according to claim 14, wherein the BMI is between 115 and 145. ### Claim 16 (depends on 1) A catalyst according to claim 1, in which the halogen is selected from the group of: fluorine, chlorine, bromine and iodine. ### Claim 17 (depends on 1) A catalyst according to claim 1, in which the halogen is chlorine and the catalyst contains 0.5 to 2% by weight of chlorine. ### Claim 18 (depends on 1) A process comprising conducting catalytic reforming of a hydrocarbon feedstock wherein the catalyst is according to claim 1. ### Claim 19 (depends on 1) A catalyst according to claim 1, wherein said promoter consists of at least one of tin, germanium and lead, and optionally gallium, indium and thallium. ### Claim 20 A process for preparation of a catalyst that comprises a metal M from the platinum group, at least one promoter X1 from the group of tin, germanium, and lead, a halogenated compound, and a porous substrate, in which the X1/M atomic ratio is between 0.3 and 8, the Hir/M ratio that is measured by hydrogen adsorption is more than 0.40, and the bimetallicity index BMI that is measured by hydrogen/oxygen titration is more than 108, said process comprising the following stages: a) Introduction of a fraction of the promoter X1 into the substrate or on the substrate, c) Calcination of the product that is obtained in stage a, d) Deposition on resultant calcined product of step (c) of at least one metal from the platinum group M, e) Optional drying under neutral atmosphere or atmosphere containing oxygen, at a moderate temperature, f) Deposition of a complementary fraction of the promoter X1 on the product that is obtained in stage d or e, h) Calcination of the product that is obtained in stage f with at least one of the following provisions for providing halogen to the catalyst: at least one of promoter X1 and metal of platinum group M is a precursor containing halogen, or there is introduced a halogenated compound or a halogen at one or more stages. ### Claim 21 (depends on 20) A process for preparation according to claim 20, also comprising a stage b for drying the product that is obtained at the end of stage a. ### Claim 22 (depends on 20) A process for preparation according to claim 20, also comprising, before stage h, a stage g for drying the product that is obtained at the end of stage f. ### Claim 23 (depends on 20) A process for preparation according to claim 20, in which a promoter X2 is introduced at one or more stages of the preparation that are selected from among the stages a, d, and f. ### Claim 24 (depends on 20) A process for preparation according to claim 20, also comprising an additional stage for introduction of a promoter X2 that is located before stage a, or between stage c and stage d, or just before stage f or stage h, or else after stage h. ### Claim 25 (depends on 20) A process for preparation according to claim 20, in which 30% at least and 70% at most of the total quantity of X1 that enters into the composition of the catalyst according to the invention is introduced during the second stage f for introducing X1. ### Claim 26 (depends on 20) A process according to claim 20, wherein said calcination of step (c) is conducted at between 350° and 650° C., the optional drying of step (e) does not exceed 150° C. and the calcination in step (h) is conducted in the presence of air optionally enriched with oxygen or nitrogen. ### Claim 27 (depends on 20) A process according to claim 20, wherein SnCl2 is added as a promoter in step (a) and the complementary fraction is added in step (f) as SnCl4. ### Claim 28 A catalyst consisting of a metal M from the platinum group, at least one promoter X1 from the group consisting of tin, germanium and lead, and optionally in addition to X1, a promoter X2 selected from the group consisting of gallium and thallium, wherein the atomic ratio of X1/M and X2/M is between 0.3 and 8, the Hir/M ratio that is measured by hydrogen adsorption is more than 0.40, and the bimetallicity index BMI that is measured by hydrogen/oxygen titration is more than 108, and wherein catalytically active metals and promoters consist of tin, germanium and lead, and optionally gallium, indium and thallium.