US 12,441,613 B2
Noble metal catalysts and processes for reforming of methane and other hydrocarbons
Terry Marker, Park Ridge, IL (US); Martin B. Linck, Wilmette, IL (US); Jim Wangerow, Oak Park, IL (US); and Pedro Ortiz-Toral, Wheeling, IL (US)
Assigned to GTI Energy, Des Plaines, IL (US)
Filed by Gas Technology Institute, Des Plaines, IL (US)
Filed on Jan. 20, 2021, as Appl. No. 17/153,375.
Application 17/153,375 is a division of application No. 15/813,781, filed on Nov. 15, 2017, granted, now 10,906,808.
Prior Publication US 2021/0171345 A1, Jun. 10, 2021
Int. Cl. C01B 3/04 (2006.01); B01J 23/10 (2006.01); B01J 23/63 (2006.01); B01J 23/656 (2006.01); C01B 3/40 (2006.01)
CPC C01B 3/40 (2013.01) [B01J 23/10 (2013.01); B01J 23/63 (2013.01); B01J 23/6567 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0238 (2013.01); C01B 2203/0283 (2013.01); C01B 2203/0405 (2013.01); C01B 2203/043 (2013.01); C01B 2203/1064 (2013.01); C01B 2203/107 (2013.01); C01B 2203/1082 (2013.01); C01B 2203/1241 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A CO2-steam reforming process comprising contacting a gaseous mixture consisting essentially of one or more hydrocarbons including methane, together with CO2 and H2O as oxidants, with a catalyst to produce a stream of a synthesis gas product having a molar H2:CO ratio of at least about 1.5:1,
wherein the catalyst comprises platinum (Pt) in an amount from about 0.3 wt-% to about 3 wt-% on a solid support comprising at least about 80 wt-% of cerium oxide, in combination with one or more other metal oxides, and
wherein, under said reforming conditions, a conversion of the methane is at least about 75% by reaction with CO2 and H2O as the oxidants, and
wherein said molar H2:CO ratio and said conversion of methane are maintained for an operating period of at least 500 hours of continuous or discontinuous operation, without undergoing regeneration over said operating period.