US 12,269,018 B2
Platinum-sulfur-based shell catalyst, production and use thereof in the dehydrogenation of hydrocarbons
Normen Szesni, Rosenheim (DE); Franziska Frankl, Rosenheim (DE); Stefanie Sturm, Bad Aibling (DE); Peter Wasserscheid, Erlangen (DE); Alexander Seidel, Erlangen (DE); and Andreas Boesmann, Erlangen (DE)
Assigned to CLARIANT INTERNATIONAL LTD, Muttenz (CH)
Appl. No. 17/045,518
Filed by Clariant International Ltd, Muttenz (CH)
PCT Filed Apr. 10, 2019, PCT No. PCT/EP2019/059107
§ 371(c)(1), (2) Date Oct. 6, 2020,
PCT Pub. No. WO2019/201706, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 10 2018 109 254.7 (DE), filed on Apr. 18, 2018.
Prior Publication US 2021/0077984 A1, Mar. 18, 2021
Int. Cl. B01J 27/045 (2006.01); B01J 6/00 (2006.01); B01J 35/08 (2006.01); B01J 35/30 (2024.01); B01J 35/51 (2024.01); B01J 35/61 (2024.01); B01J 35/63 (2024.01); B01J 37/00 (2006.01); B01J 37/02 (2006.01); B01J 37/18 (2006.01); C07C 5/32 (2006.01); B01J 21/04 (2006.01)
CPC B01J 27/045 (2013.01) [B01J 6/001 (2013.01); B01J 35/397 (2024.01); B01J 35/51 (2024.01); B01J 35/612 (2024.01); B01J 35/613 (2024.01); B01J 35/633 (2024.01); B01J 35/635 (2024.01); B01J 37/0209 (2013.01); B01J 37/0213 (2013.01); B01J 37/18 (2013.01); C07C 5/322 (2013.01); B01J 21/04 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A shell catalyst comprising
(a) a shaped support body comprising alumina (Al2O3),
(b) platinum in a reduced form in an amount in the range of 0.1-1% by weight, based on the total weight of the shell catalyst, and
(c) sulfur,
wherein the atomic ratio of platinum to sulfur is 1:1.5-1:10, and wherein the shell catalyst has an outer shell which comprises at least 85 wt. % of the total platinum and at least 85 wt. % of the total sulfur present in the shell catalyst, and wherein the thickness of the outer shell, determined by EDX linescan, is in the range from 40 μm to 250 μm, wherein the shell catalyst has been reduced.