US 9,809,512 B2
Adsorptive recovery of butadiene from on purpose butadiene production
John J. Senetar, Naperville, IL (US)
Assigned to UOP LLP, Des Plaines, IL (US)
Filed by UOP LLC, Des Plaines, IL (US)
Filed on Dec. 1, 2014, as Appl. No. 14/556,893.
Prior Publication US 2016/0152529 A1, Jun. 2, 2016
Int. Cl. C07C 7/12 (2006.01); C07C 7/13 (2006.01); C07C 5/327 (2006.01); C07C 5/48 (2006.01); C07C 7/11 (2006.01)
CPC C07C 5/48 (2013.01) [C07C 5/327 (2013.01); C07C 7/11 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A process for the production of butadienes comprising:
passing a butene stream and an oxidative stream comprising light gasses including oxygen to an oxidative dehydrogenation reactor to generate a process stream comprising light gasses, unreacted oxygen and C4s including butenes and butadienes;
passing the process stream to an adsorptive separation unit, comprising an adsorber, to generate a first stream comprising the light gasses and unreacted oxygen and retaining the C4s including the butenes and butadienes in the adsorber;
passing a solvent stream to the adsorptive separation unit to generate a second stream comprising solvent and the C4s including the butenes and butadienes;
passing the second stream to a solvent recovery unit to generate a third stream comprising C4s including the butenes and butadienes, and a fourth stream comprising solvent; and
passing the third stream comprising C4s including the butenes and butadienes to a butadiene recovery unit to generate a product stream comprising butadienes.