US 11,926,800 B2
Regeneration of a dehydrogenation catalyst slip-stream
Avram M. Buchbinder, Chicago, IL (US); John J. Senetar, Naperville, IL (US); Wei Pan, Hoffman Estates, IL (US); Wolfgang A Spieker, Glenview, IL (US); and Richard A. Johnson, II, Algonquin, IL (US)
Assigned to UOP LLC, Des Plaines, IL (US)
Filed by UOP LLC, Des Plaines, IL (US)
Filed on Jan. 12, 2022, as Appl. No. 17/574,439.
Claims priority of provisional application 63/282,461, filed on Nov. 23, 2021.
Prior Publication US 2022/0135887 A1, May 5, 2022
Int. Cl. C10G 35/09 (2006.01); B01J 23/96 (2006.01); B01J 38/02 (2006.01)
CPC C10G 35/09 (2013.01) [B01J 23/96 (2013.01); B01J 38/02 (2013.01); C10G 2300/1085 (2013.01); C10G 2400/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A process for managing or controlling catalyst activity comprising sending about 0.05 to 5% of quantity of catalyst flow within a propane dehydrogenation system to a catalyst rejuvenation unit wherein said system comprises a reactor, a catalyst regeneration unit and said catalyst rejuvenation unit and catalyst piping to send catalyst to and from each of said reactor, said catalyst regeneration unit and said catalyst rejuvenation unit, wherein the catalyst sent to said rejuvenation unit is heated to a temperature above 715° C. in presence of a gas comprising more than 2 mol % O2.