US 12,221,407 B2
Systems and methods for reforming a heavy aromatic stream
Paul G. Blommel, Oregon, WI (US); Matthew Van Straten, Madison, WI (US); and Brice Dally, Madison, WI (US)
Assigned to Virent, Inc.
Filed by Virent, Inc., Madison, WI (US)
Filed on Mar. 11, 2024, as Appl. No. 18/601,930.
Application 18/601,930 is a division of application No. 17/966,343, filed on Oct. 14, 2022, granted, now 11,952,332.
Claims priority of provisional application 63/255,817, filed on Oct. 14, 2021.
Prior Publication US 2024/0217900 A1, Jul. 4, 2024
Int. Cl. C07C 4/18 (2006.01); B01D 3/14 (2006.01); C07C 1/22 (2006.01); C07C 5/11 (2006.01); C07C 7/00 (2006.01); C07C 7/04 (2006.01)
CPC C07C 4/18 (2013.01) [B01D 3/143 (2013.01); C07C 1/22 (2013.01); C07C 5/11 (2013.01); C07C 7/005 (2013.01); C07C 7/04 (2013.01); C07C 2523/14 (2013.01); C07C 2523/28 (2013.01); C07C 2523/30 (2013.01); C07C 2523/44 (2013.01); C07C 2529/46 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A process comprising:
(i) catalytically reacting a feedstock stream comprising water and oxygenated hydrocarbons in the presence of hydrogen with a deoxygenation catalyst to produce a deoxygenated product stream;
(ii) catalytically reacting the deoxygenated product stream with at least one conversion catalyst to produce a condensation product stream comprising non-aromatic hydrocarbons and aromatic hydrocarbons, wherein the non-aromatic hydrocarbons comprise a paraffin, an olefin, a naphthene, or a combination thereof, and wherein the aromatic compounds comprise an aryl, a fused aryl, a polycyclic compound, or a combination thereof;
(iii) fractionating, using a series of distillation columns, the condensation product stream to separate an aromatics product stream and a heavy hydrocarbon stream from the condensation product stream, wherein the aromatics product stream comprises a C6 aromatic, a C7 aromatic, a C8 aromatic, or a combination thereof, and wherein the heavy hydrocarbon stream comprises C11+ compounds; and
(iv) recycling at least a portion of the heavy hydrocarbon stream to the deoxygenation catalyst of step (i).