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公开(公告)号:DE50313078D1
公开(公告)日:2010-10-21
申请号:DE50313078
申请日:2003-10-27
Applicant: BASF SE
Inventor: WALSDORFF CHRISTIAN , FIENE MARTIN , KUHRS CHRISTIAN , STROEFER ECKHARD , HARTH KLAUS
IPC: C01B7/04 , C01B7/07 , C07C263/10
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公开(公告)号:DE50213396D1
公开(公告)日:2009-05-07
申请号:DE50213396
申请日:2002-10-14
Applicant: BASF SE
Inventor: WALSDORFF CHRISTIAN , SCHINDLER GOETZ-PETER , MACHHAMMER OTTO , HARTH KLAUS
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.
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公开(公告)号:ES2316735T3
公开(公告)日:2009-04-16
申请号:ES03709709
申请日:2003-02-17
Applicant: BASF SE
Inventor: WALSDORFF CHRISTIAN , SCHINDLER GOTZ-PETER , HARTH KLAUS , HIBST HARTMUT
Abstract: Procedimiento de elaboración de 4-vinilcilohexeno con los pasos (A) Preparación, disposición de una corriente gaseosa de alimentación conteniendo n-butano, (B) Alimentación de la corriente gaseosa de alimentación conteniendo n-butano a al menos una zona de deshidrogenación y deshidrogenación de n-butano a butadieno, obteniéndose una corriente de productos comprendiendo butadieno, n-butano, si fuera necesario, 1-buteno y 2-buteno y, si fuera necesario, vapor de agua y otros componentes secundarios, (C) Alimentación de la corriente de productos de la deshidrogenación, si fuera necesario, tras la separación del vapor de agua y los componentes secundarios, a una zona de dimerización y dimerización catalítica de butadieno, obteniéndose una corriente de productos conteniendo 4-vinilciclohexeno, n-butano y, si fuera necesario, 1-buteno, 2-buteno y butadieno no transformado, (D) Separación del 4-vinilciclohexeno de la corriente de productos de la dimerización y recirculación de n-butano y, si fuera necesario, 1-buteno, 2-buteno y butadieno no transformado en la zona de deshidrogenación.
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公开(公告)号:AT420062T
公开(公告)日:2009-01-15
申请号:AT03709709
申请日:2003-02-17
Applicant: BASF SE
Inventor: WALSDORFF CHRISTIAN , SCHINDLER GOETZ-PETER , HARTH KLAUS , HIBST HARTMUT
Abstract: The invention relates to a process for preparing 4-vinylcyclohexene, which comprises the steps (A) providing an n-butane-containing feed gas stream, (B) feeding the n-butane-containing feed gas stream into at least one dehydrogenation zone and dehydrogenating n-butane to butadiene to give a product stream comprising butadiene, n-butane, possibly 1-butene and 2-butene and possibly water vapor and other secondary constituents, (C) feeding the product stream from dehydrogenation, if appropriate after separating off water vapor and secondary constituents, into a dimerization zone and catalytically dimerizing butadiene to give a product stream comprising 4-vinylcyclohexene, n-butane and possibly 1-butene, 2-butene and unreacted butadiene, and (D) separating off 4-vinylcyclohexene from the product stream from the dimerization and recirculating n-butane and possibly 1-butene, 2-butene and unreacted butadiene to the dehydrogenation zone.
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