US 12,258,313 B2
Thermally coupled distillation scheme for purification of cumene
Rian Reyneke, Katy, TX (US); and Eric Wing-Tak Wong, Houston, TX (US)
Assigned to KELLOGG BROWN & ROOT LLC, Houston, TX (US)
Filed by Kellogg Brown & Root LLC, Houston, TX (US)
Filed on Dec. 8, 2022, as Appl. No. 18/078,036.
Claims priority of provisional application 63/288,376, filed on Dec. 10, 2021.
Prior Publication US 2023/0183153 A1, Jun. 15, 2023
Int. Cl. C07C 7/05 (2006.01)
CPC C07C 7/05 (2013.01) 9 Claims
OG exemplary drawing
 
1. A system for purifying cumene, the system comprising:
a split feed assembly configured to receive an alkylation reaction product from an alkylation reactor, wherein the split feed assembly is configured to form the alkylation reaction product into a mostly liquid first stream and a second stream, and wherein the split feed assembly comprises a heater configured to at least partially vaporize the second stream to form an at least partially vapor second stream; and
a benzene column configured to receive the mostly liquid first stream and the at least partially vapor second stream and to separate at least benzene from the mostly liquid first stream and the at least partially vapor second stream.