US 12,264,208 B2
Processes for converting C4 feeds to isobutylene, polyisobutylene, or derivatives thereof
Clyde Edward Baxter, Jr., League City, TX (US); Mark W. Roll, Boerne, TX (US); and Billy W. Waycaster, Cypress, TX (US)
Assigned to NTP Tec, LLC, Boerne, TX (US)
Filed by NTP Tec, LLC, Boerne, TX (US)
Filed on Sep. 10, 2024, as Appl. No. 18/829,679.
Application 18/829,679 is a continuation of application No. 18/661,249, filed on May 10, 2024.
Claims priority of provisional application 63/630,397, filed on Jan. 31, 2024.
Claims priority of provisional application 63/629,098, filed on Sep. 20, 2023.
Claims priority of provisional application 63/577,757, filed on May 19, 2023.
Prior Publication US 2024/0425624 A1, Dec. 26, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C08F 10/10 (2006.01); C07C 5/27 (2006.01)
CPC C08F 10/10 (2013.01) [C07C 5/2767 (2013.01)] 19 Claims
 
1. A process for forming isobutylene, the process comprising:
(a) hydroisomerizing, in a hydroisomerization unit, 1,3-butadiene present in a feed to a hydroisomerization product effluent comprising 2-butene, the hydroisomerizing the 1,3-butadiene comprising converting at least a portion of the 1,3-butadiene to the 2-butene;
(b) isomerizing at least a portion of the 2-butene present in the hydroisomerization product effluent to form an isomerization product effluent comprising 1-butene, 2-butene, and isobutylene, the isomerization product effluent having a higher concentration of isobutylene than the concentration of isobutylene in the hydroisomerization product effluent;
(c) combining the isomerization product effluent with the feed to form a mixture; and
(d) hydroisomerizing the mixture in the hydroisomerization unit.