US 11,773,335 B2
Heat source for pyrolysis process
Brian M. Weiss, Bridgewater, NJ (US); Sophie Liu, Hampton, NJ (US); Michael R. Harper, Jr., Hillsborough, NJ (US); Herbert W. Barry, Yardville, NJ (US); Changmin Chun, Raritan, NJ (US); Barrington S. Goldson, Easton, PA (US); Justin R. Johnson, Easton, PA (US); and Faria Nusrat, Bloomfield, NJ (US)
Assigned to EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US)
Filed by ExxonMobil Technology and Engineering Company, Annandale, NJ (US)
Filed on Dec. 7, 2021, as Appl. No. 17/643,044.
Claims priority of provisional application 63/140,633, filed on Jan. 22, 2021.
Prior Publication US 2022/0235282 A1, Jul. 28, 2022
Int. Cl. C10G 11/12 (2006.01); C10G 11/18 (2006.01)
CPC C10G 11/182 (2013.01) [C10G 11/12 (2013.01); C10G 2300/703 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A reverse flow reactor for performing cyclic reactions with flows entering the reactor from substantially opposing directions comprising:
a first zone comprising a primary end, a secondary end, and at least a portion of a reaction zone, the at least a portion of the reaction zone being proximate to the secondary end of the first zone, the reaction zone comprising a catalyst system;
a second zone comprising a first end and a second end, the second zone comprising a recuperation zone proximate to the first end,
wherein the first zone and the second zone are in fluid communication, the second end of the second zone being proximate to the secondary end of the first zone,
wherein the catalyst system comprises a first portion of combustion catalyst having a first combustion catalyst density and a second portion of combustion catalyst having a second combustion catalyst density,
wherein the second combustion catalyst density is greater than the first combustion catalyst density, and
wherein the first end of the second zone is closer to the first portion of combustion catalyst than the second portion of combustion catalyst.