Patent Number: 6,512,151

Title: Process for the purification and production of a diolefin hydrocarbon stream

Abstract: A selective acetylene hydrogenation process which is able to produce a high quality diolefin having extremely low levels of acetylene over an extended period of time compared with the prior art. The process of the present invention provides a selective hydrogenation reaction zone wherein the catalyst activity is maintained at a high level while the process unit remains on stream by contacting the selective hydrogenation catalyst with a polymer solvent, diolefin feed and hydrogen in one embodiment and by contacting the selective hydrogenation catalyst off-line with only polymer solvent and hydrogen in a second embodiment. In addition, the quantity of make-up regeneration solvent is significantly reduced.

Inventors: Lankton; Steven P. (Wheeling, IL)

Assignee: UOP LLC

International Classification: C07C 7/00 (20060101); B01J 38/00 (20060101); B01J 38/56 (20060101); C07C 7/167 (20060101); B01J 23/90 (20060101); B01J 23/94 (20060101); C07C 005/03 (); C07C 007/163 ()

Expiration Date: 01/28/2020