公开(公告)号：MY136625A

公开(公告)日：2008-10-31

申请号：MYPI20045400

申请日：2004-12-29

Applicant: BASF AG

Inventor： JOHANN THORSTEN DR ,  SCHINDLER GOETZ-PETER DR ,  BRODHAGEN ANDREAS DR ,  CRONE SVEN DR ,  BENFER REGINA DR ,  SIGL MARCUS DR ,  DUDA MARK DR

IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: The disclosure involves a process for the preparation of butadiene and 1-butene. The process includes at least a first catalytic dehydrogenation of n-butane to obtain a gas stream which is followed by at least a second oxidative dehydrogenation to form a second gas stream. The second gas stream is then subjected to distillation and isomeration steps to obtain butadiene and 1-butene.

公开(公告)号：MY142398A

公开(公告)日：2010-11-30

申请号：MYPI20044252

申请日：2004-10-14

Applicant: BASF AG

Inventor： HARTH KLAUS DR ,  JOHANN THORSTEN DR ,  WALSDORFF CHRISTIAN DR ,  HOFSTADT OTTO ,  BAIER MICHAEL ,  POEPEL KARIN

IPC: B01J19/30 ,  B01J23/00 ,  B01J35/00 ,  B01J35/02

Abstract: NOVEL CATALYST BEDS COMPRISING A PHYSICAL MIXTURE OF CATALYTICALLY ACTIVE AND CATALYTICALLY INACTIVE SHAPED BODIES, IN WHICH THE CATALYTICALLY INACTIVE SHAPED BODIES HAVE ROUNDED EDGES ON THE EXTERNAL RUBBING SURFACES.

公开(公告)号：MY140092A

公开(公告)日：2009-11-30

申请号：MYPI20045270

申请日：2004-12-21

Applicant: BASF AG

Inventor： JOHANN THORSTEN DR ,  SCHINDLER GOETZ-PETER DR ,  BRODHAGEN ANDREAS DR ,  CRONE SVEN DR ,  BENFER REGINA DR ,  HILL THOMAS DR ,  DUDA MARK DR

IPC: C07C5/327 ,  C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: The disclosure relates to a process for preparing butadiene. The process involves nonoxidatively catalytically dehydrogenating butane to obtain a product gas stream containing butane, 1-butene, 2-butene, butadiene, hydrogen and secondary constituents. The 1-butene and 2-butene of the product gas stream is then oxidatively dehydrogenated to give a second gas stream containing butane,2-butene, butadiene, hydrogen, steam and secondary constituents. Next, the butane,2-butene and butadiene are separated from the second gas stream and the butane and 2-butene are then separated from the butadiene product. The butane and 2-butene are then recycled into the nonoxidative catalytic dehydrogenating zone.

公开(公告)号：MY137758A

公开(公告)日：2009-03-31

申请号：MYPI20045398

申请日：2004-12-29

Applicant: BASF AG

Inventor： JOHANN THORSTEN DR ,  SCHINDLER GOETZ-PETER DR ,  BRODHAGEN ANDREAS DR ,  CRONE SVEN DR ,  DUDA MARK DR

IPC: C07C5/333 ,  C07C5/48 ,  C07C11/167

Abstract: THE INVENTION RELATES TO A PROCESS FOR PREPARING BUTADIENE FROM N-BUTANE HAVING THE STEPS OFA) PROVIDING A FEED GAS STREAM A COMPRISING N-BUTANE;@B) FEEDING THE FEED GAS STREAM A COMPRISING N-BUTANE INTO AT LEAST ONE FIRST DEHYDROGENATION ZONE AND NONOXIDATIVELY CATALYTICALLY DEHYDROGENATING N-BUTANE TO OBTAIN A PRODUCT GAS STREAM B COMPRISING N-BUTANE,I-BUTANE,2-BUTENE,BUTADIENE,HYDROGEN, LOW-BOILING SECONDARY CONSTITUENTS AND IN SOME CASES STEAM;@C) FEEDING THE PRODUCT GAS STREAM B OF THE NONOXIDATIVE CATALYTIC DEHYDROGENATION AND AN OXYGENOUS GAS INTO AT LEAST ONE SECOND DEHYDROGENATION ZONE AND AN OXIDATIVELY DEHYROGENATING I-BUTENE AND 2-BUTENE TO OBTAIN A PRODUCT GAS STREAM C COMPRISING N-BUTANE,2-BUTENE,BUTADIENE,HYDROGEN, LOW-BOILING SECONDARY CONSTITUENS AND STEAM,SAID PRODUCT GAS STREAM C HAVING A HIGHER CONTENT OF BUTADIENE THAN THE PRODUCT GAS STREAM B;@D) REMOVING HYDROGEN, THE LOW-BOILING SECONDARY CONSTITUENTS AND STEAM TO OBTAIN A C4 PRODUCT GAS STREAM D SUBSTANTIALLY CONSISTING OF N-BUTANE,2-BUTENE AND BUTADIENE;@E) FEEDING THE C4 PRODUCT GAS STREAM D INTO A DISTILLATION ZONE AND REMOVING A BUTADIENE/BUTANE MIXTURE AS THE PRODUCT OF VALUE STREAM E1,TO LEAVE A STREAM E2 CONSISTING SUBSTANTIALLY OF N- BUTANE AND 2-BUTENE;@F) RECYCLING THESTREAM E2 INTO THE FIRST DEHYDROGENATION ZONE.

公开(公告)号：MY137678A

公开(公告)日：2009-02-27

申请号：MYPI20045307

申请日：2004-12-22

Applicant: BASF AG

Inventor： OLBERT GERHARD ,  JOHANN THORSTEN DR ,  WEBER MARKUS DR ,  LANG NEVEN DR ,  HARTH KLAUS DR ,  STROEFER ECKHARD DR ,  FIENE MARTIN DR ,  SIEGERT MARKUS DR

IPC: B01J8/02 ,  B01J8/04 ,  B01J19/24 ,  C07C45/38 ,  F28D9/00

Abstract: A process for preparing formaldehyde by gas-phase oxidation of methanol vapor by means of a gas stream comprising molecular oxygen in the presence of a fixed-bed catalyst comprising iron and molybdenum, wherein the process is carried out in a reactor ( 1 ) having heat-exchange plates ( 2 ) which are arranged in the longitudinal direction of the reactor ( 1 ) and have a spacing between them and through which a heat transfer medium flows, inlet and outlet facilities ( 3, 4 ) for the heat transfer medium to the heat-exchange plates ( 2 ) and also gaps ( 5 ) between heat-exchange plates ( 2 ) in which the fixed-bed catalyst is present and into which the methanol vapor and the gas stream comprising molecular oxygen are passed, is described.