公开(公告)号：AT442346T

公开(公告)日：2009-09-15

申请号：AT02791437

申请日：2002-06-21

Applicant: BASF SE

Inventor： PROLL THEO ,  MACHHAMMER OTTO ,  SCHINDLER GITZ-PETER ,  MULLER-ENGEL KLAUS

IPC: C07C45/34 ,  C07C45/35 ,  B01J27/199 ,  C07B61/00 ,  C07C5/333 ,  C07C45/33 ,  C07C47/22 ,  C07C51/235 ,  C07C57/055 ,  C07C253/26 ,  C07C255/08

Abstract: Partial oxidation products and/or ammoxidation products of an olefinic hydrocarbon A' are prepared by a process in which said olefinic hydrocarbon is produced during normal operation by partial dehydrogenation and/or oxydehydrogenation of hydrocarbon A and fed in from another source during partial or complete nonoperation of the dehydrogenation and/or oxydehydrogenation.

公开(公告)号：AT426584T

公开(公告)日：2009-04-15

申请号：AT02801334

申请日：2002-10-14

Applicant: BASF SE

Inventor： WALSDORFF CHRISTIAN ,  SCHINDLER GITZ-PETER ,  MACHHAMMER OTTO ,  HARTH KLAUS

IPC: C07C5/48 ,  C07B61/00 ,  C07C5/327 ,  C07C5/333 ,  C07C11/02

Abstract: C 2 -C 30 -alkanes are dehydrogenated in a process in which (i) ethylbenzene is dehydrogenated to styrene in a first part process to give a hydrogen-containing offgas stream, and (ii) one or more C 2 -C 30 -alkanes are dehydrogenated in the presence of a heterogeneous catalyst in one or more reaction zones in a second part process to give the corresponding olefins, with a hydrogen-containing gas stream being mixed into the reaction gas mixture of the dehydrogenation in at least one reaction zone, wherein at least part of the hydrogen-containing offgas stream obtained in the dehydrogenation of ethylbenzene is mixed into the reaction gas mixture of the alkane dehydrogenation.