US 12,312,305 B2
Production of heavy isoparaffinic hydrocarbons
Marc Andrew Laurin, Houston, TX (US); Rosette Barias, Houston, TX (US); Manoj Som, Houston, TX (US); and Liang Chen, Houston, TX (US)
Assigned to LUMMUS TECHNOLOGY LLC, Houston, TX (US)
Filed by LUMMUS TECHNOLOGY LLC, Houston, TX (US)
Filed on May 9, 2023, as Appl. No. 18/314,617.
Claims priority of provisional application 63/364,600, filed on May 12, 2022.
Prior Publication US 2023/0365478 A1, Nov. 16, 2023
Int. Cl. C07C 5/03 (2006.01); B01J 8/02 (2006.01); C07C 5/08 (2006.01); C07C 5/09 (2006.01)
CPC C07C 5/03 (2013.01) [B01J 8/0242 (2013.01); B01J 8/0278 (2013.01); B01J 8/0285 (2013.01); B01J 2208/00849 (2013.01); C07C 2523/42 (2013.01); C07C 2523/44 (2013.01); C07C 2523/745 (2013.01); C07C 2523/755 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A process for hydrogenation of isoolefins, the process comprising:
feeding a mixed isoolefin stream, comprising C8-C12 olefins, including isoolefins and oligomers, and C8-C12 hydrogenated hydrocarbons to a trickle-bed reactor system containing one or more beds of a hydrogenation catalyst;
feeding a hydrogen feed stream to the trickle-bed reactor system;
reacting the hydrogen feed stream and the mixed isoolefin stream in the one or more beds of hydrogenation catalyst, producing a liquid effluent comprising hydrogenated hydrocarbons and unreacted olefins and a vapor effluent comprising hydrogenated hydrocarbons, hydrogen, and unreacted olefins;
feeding the liquid effluent to a first heat exchanger, cooling the liquid effluent, and producing a cooled liquid effluent stream;
combining the vapor effluent and the cooled liquid effluent stream, producing a mixed phase effluent;
feeding the mixed phase effluent to a second heat exchanger, cooling the mixed phase effluent, and producing a partially condensed effluent;
feeding the partially condensed effluent to a drum, producing a vent stream, a hydrogenated product stream comprising greater than 95 wt % C8-C12 saturated hydrocarbons, and a hydrogenated recycle stream; and
recovering the hydrogenated product stream and sending the hydrogenated product stream to one or more downstream blending systems.