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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.
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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
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.
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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.
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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.
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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
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.
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