公开(公告)号：DE10214442A1

公开(公告)日：2003-10-09

申请号：DE10214442

申请日：2002-03-30

Applicant: BASF AG

Inventor： STEPHAN JUERGEN ,  ROEPER MICHAEL ,  ZIMDAHL SOEREN ,  BREDEHOEFT JAN PETER ,  BERG STEFAN ,  GROS JOACHIM

IPC: C07C6/04 ,  C07C7/04 ,  C07C11/02 ,  C07C11/107

Abstract: Production of 6C alkenes from a 4C-alkene containing hydrocarbon stream comprises contacting with a metathesis catalyst comprising a Group VIb, VIIb or VIII element whereby at least a portion of the 4C alkene is converted to a 2-6C alkene and the 2-6C alkene stream is separated from the metathesis catalyst and distilled. A process for the production of 6C alkenes from a 4C-alkene containing hydrocarbon stream comprises: (a) contact of the 4C-alkene stream with a metathesis catalyst comprising a Group VIb, VIIb or VIII element whereby at least a portion of the 4C alkene is converted to a 2-6C alkene and the 2-6C alkene stream is separated from the metathesis catalyst; (b) distillation of ethylene from the 2-6C stream to yield a 3-6C alkene stream; (c) distillation of the 3-6C stream to yield a propylene stream, a 6C stream, a 4C stream, a 5C stream and/or a 4-5C stream; and (d) recycling of at least a portion of the 4C, 5C and/or 4-5C stream.

公开(公告)号：DE59902306D1

公开(公告)日：2002-09-12

申请号：DE59902306

申请日：1999-11-23

Applicant: BASF AG

Inventor： BERG STEFAN ,  ZEHNER PETER ,  BENFER REGINA ,  MUELLER JOERN ,  NILLES MICHAEL ,  SCHULZ RALF ,  STUETZER DIETER

IPC: B01J8/22 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C45/72 ,  C07C51/235 ,  C07C53/122

Abstract: A reactor (1) of high cylindrical construction for continuously carrying out gas-liquid, liquid-liquid or gas-liquid-solid reactions, provided with a downward-directed jet nozzle (2) via which the starting materials and the reaction mixture are fed in and which is located in the upper region of the reactor, and provided with an offtake (3), preferably in the lower region of the reactor, via which the reaction mixture is conveyed via an external circuit back to the jet nozzle (2) by means of a pump (P), wherein a guide tube (4) which extends essentially over the total length of the reactor (1) with the exception of the reactor ends and has a cross-sectional area in the range from one tenth to one half of the cross-sectional area of the reactor (1) is located concentrically in the reactor (1), and the jet nozzle (2) is located above the upper end of the guide tube (4), preferably at a distance of from one eighth of the guide tube diameter to one guide tube diameter, or projects into the guide tube (4) to a depth up to a plurality of guide tube diameters is proposed. A heat exchanger, in particular a heat exchanger having heat exchange tubes (6), preferably running parallel to the guide tube, welded in between plates (5), is integrated into the annular space.

公开(公告)号：DE19854637A1

公开(公告)日：2000-05-31

申请号：DE19854637

申请日：1998-11-26

Applicant: BASF AG

Inventor： BERG STEFAN ,  ZEHNER PETER ,  BENFER REGINA ,  MUELLER JOERN ,  NILLES MICHAEL ,  SCHULZ RALF ,  STUETZER DIETER

IPC: B01J8/22 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C45/72 ,  C07C51/235 ,  C07C53/122 ,  B01J14/00 ,  B01J8/00

Abstract: The invention relates to a vertical cylinder reactor (1) for carrying out gas-liquid, liquid-liquid or gas-liquid-solid chemical reactions. Said reactor comprises a nozzle (2) which is arranged in the upper portion of the reactor and which is directed downwards and by way of which the educts and the reaction mixture are supplied. The reactor further comprises a discharge (3), preferably in the lower portion of the reactor, through which the reaction mixture can be re-fed to the nozzle (2) via an exterior circuit by way of a pump (P). A concentric guide tube is arranged in the reactor which substantially extends across the entire length of the reactor (1) except the reactor ends. Said guide tube has a cross-sectional area in the range of a tenth to half of the cross-sectional area of the reactor (1). The nozzle is arranged above the upper end of the guide tube (4), preferably in a distance of an eighth to a full cross-sectional area of the guide tube or it dips into the guide tube (4) in a depth of up to several cross-sectional areas of the guide tube. A heat exchanger is integrated into the annulus, especially a heat exchanger with heat exchanger tubes (6) welded between bottoms (6). Said tubes are preferably arranged parallel to the guide tube.

公开(公告)号：DE10309070A1

公开(公告)日：2004-09-16

申请号：DE10309070

申请日：2003-03-03

Applicant: BASF AG

Inventor： STEPHAN JUERGEN ,  SCHUBERT MARKUS ,  WEICHERT CHRISTIAN ,  RUPPEL WILHELM ,  RESCH PETER ,  ZIMDAHL SOEREN ,  MRZENA FRANK ,  MOLITOR ANDREAS ,  BERG STEFAN ,  FOHRMANN MATHIAS

IPC: B01J23/36 ,  B01J23/92 ,  B01J38/12 ,  B01J38/14 ,  C07C6/04 ,  B01J38/04