公开(公告)号：DE50205564D1

公开(公告)日：2006-04-06

申请号：DE50205564

申请日：2002-09-23

Applicant: BASF AG

Inventor： HILL DR ,  HAAKE DR ,  SCHWAB DR ,  FRENZEL DR ,  WOERZ DR

IPC: C07C5/03 ,  C07B35/02 ,  C07C5/08 ,  C07C5/09 ,  C07C9/02 ,  C07C9/14 ,  C07C11/04 ,  C07C11/06

Abstract: Selective catalytic gas-phase hydrogenation of alkynes, dienes, alkenynes and/or polyenes in an olefin-containing hydrocarbon stream in a series of two or more reaction zones without feeding part of the hydrocarbon stream between the penultimate and last reaction zones. The process comprises adjusting the hydrogen content before the penultimate zone and the conversion in the penultimate zone so that the reaction mixture leaving the penultimate zone contains at least 0.7 vol.% hydrogen.