US 11,851,328 B2
Reverse flow reactor regeneration using high heat capacity fluids
Everett J. O'Neal, Asbury, NJ (US); Anastasios I. Skoulidas, Pittstown, NJ (US); and Zhiyan Wang, The Woodlands, TX (US)
Assigned to EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed by ExxonMobil Technology and Engineering Company, Annandale, NJ (US)
Filed on Apr. 2, 2020, as Appl. No. 16/838,399.
Claims priority of provisional application 62/829,793, filed on Apr. 5, 2019.
Prior Publication US 2020/0317515 A1, Oct. 8, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. C01B 3/38 (2006.01); B01J 8/04 (2006.01); B01D 53/047 (2006.01); B01J 19/24 (2006.01); B01J 38/40 (2006.01); C01B 3/48 (2006.01); C01B 3/56 (2006.01); B01J 12/00 (2006.01); B01J 23/34 (2006.01); B01J 23/92 (2006.01); B01J 35/04 (2006.01); B01J 38/14 (2006.01); C01B 3/40 (2006.01)
CPC C01B 3/384 (2013.01) [B01D 53/047 (2013.01); B01J 8/0492 (2013.01); B01J 8/0496 (2013.01); B01J 12/007 (2013.01); B01J 19/2465 (2013.01); B01J 23/34 (2013.01); B01J 23/92 (2013.01); B01J 35/04 (2013.01); B01J 38/14 (2013.01); B01J 38/40 (2013.01); C01B 3/40 (2013.01); C01B 3/48 (2013.01); C01B 3/56 (2013.01); B01D 2256/16 (2013.01); B01D 2257/502 (2013.01); B01D 2257/504 (2013.01); B01D 2257/80 (2013.01); C01B 2203/0233 (2013.01); C01B 2203/0283 (2013.01); C01B 2203/042 (2013.01); C01B 2203/0475 (2013.01); C01B 2203/0822 (2013.01); C01B 2203/1094 (2013.01); C01B 2203/1241 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method for operating a reactor, comprising:
reacting a fuel mixture comprising fuel, 0.1 vol % or more of O2, and a diluent under combustion conditions in a combustion zone within a reactor to form a flue gas and to heat one or more surfaces in a reaction zone to a regenerated surface temperature of 800° C. or more, the diluent comprising a plurality of gases different from the fuel and the O2, the diluent comprising 45 vol % or more of at least one gas having a heat capacity at 1500 K of 40 J/mol*K or more relative to a volume of the diluent, the reaction zone comprising a catalyst composition; and
exposing a first reactant stream to the catalyst composition in the reaction zone at the regenerated surface temperature under endothermic reaction conditions to form a product stream, a direction of flow for the reactant stream within the reaction zone being reversed relative to a direction of flow for the fuel mixture.