US 12,252,466 B2
Isooctane production from field butane
Dustin Fickel, Sugar Land, TX (US)
Assigned to SABIC Global Technologies B.V., Bergen op Zoom (NL)
Appl. No. 18/038,169
Filed by SABIC Global Technologies B.V., Bergen op Zoom (NL)
PCT Filed Sep. 16, 2021, PCT No. PCT/US2021/050576
§ 371(c)(1), (2) Date May 22, 2023,
PCT Pub. No. WO2022/119614, PCT Pub. Date Jun. 9, 2022.
Claims priority of provisional application 63/121,250, filed on Dec. 4, 2020.
Prior Publication US 2023/0406788 A1, Dec. 21, 2023
Int. Cl. C07C 5/03 (2006.01)
CPC C07C 5/03 (2013.01) [C07C 2529/44 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A process comprising:
(a) introducing a butane feed stream and hydrogen to a hydrogenolysis reactor to produce a hydrogenolysis product stream, wherein the hydrogenolysis reactor comprises a hydrogenolysis catalyst, wherein the butane feed stream comprises n-butane and i-butane, wherein said catalyst having higher selectivity towards hydrogenolysis of n-butane compared to hydrogenolysis of i-butane, wherein the hydrogenolysis product stream comprises hydrogen, methane, ethane, propane, i-butane, and n-butane, and further wherein said hydrogenolysis product stream has a higher i-butane:n-butane ratio than the butane feed stream;
(b) separating at least a portion of the hydrogenolysis product stream in a first separation unit into a first hydrogen-containing stream, a stream rich in methane, ethane and propane, and a butane stream, wherein the butane stream comprises i-butane and n-butane;
(c) feeding at least a portion of the butane stream to a dehydrogenation reactor to produce a dehydrogenation product stream, wherein the dehydrogenation reactor comprises a dehydrogenation catalyst, and wherein the dehydrogenation product stream comprises hydrogen, i-butane, isobutylene, n-butane, 1-butene, and 2-butene,
(d) feeding at least a portion of the dehydrogenation product stream to an oligomerization unit to produce a product stream comprising isooctene; and,
(e) feeding at least a portion of the product stream comprising isooctene to a hydrogenation unit to produce isooctane.