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公开(公告)号：DE502006004439D1
公开(公告)日：2009-09-17
申请号：DE502006004439
申请日：2006-01-04
Applicant: BASF SE
Inventor： CRONE SVEN , MACHHAMMER OTTO , SCHINDLER GOETZ-PETER , BORGMEIER FRIEDER
Abstract: A process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the fed gas stream a comprising propane, if appropriate steam and, if appropriate, an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, carbon monoxide, carbon dioxide, steam, if appropriate hydrogen and, if appropriate, oxygen; C) product gas stream b is cooled, if appropriate condensed and steam is removed by condensation to obtain a steam-depleted product gas stream c; D) product gas stream c is contacted in a first absorption zone with a selective, inert absorbent which selectively absorbs propene to obtain an absorbent stream d1 laden substantially with propene and a gas stream d2 comprising propane, methane, ethane, ethene, carbon monoxide, carbon dioxide and hydrogen; E) if appropriate, the absorbent stream d1 is decompressed to a lower pressure in a first desorption zone to obtain an absorbent stream e1 laden substantially with propene and a gas stream e2 comprising propene, and gas stream e2 is recycled into the first absorption zone, F) from the absorbent stream d1 or e1 laden substantially with propene, in at least one second desorption zone, by decompression, heating and/or stripping the absorbent stream d1 or e1, a gas stream f1 comprising propene is released and the selective absorbent is recovered.
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公开(公告)号：DE502006003491D1
公开(公告)日：2009-05-28
申请号：DE502006003491
申请日：2006-10-26
Applicant: BASF SE
Inventor： DIETERLE MARTIN , SCHINDLER GOETZ-PETER , KLANNER CATHARINA
IPC: C07C45/33 , C07C45/35 , C07C51/215 , C07C51/25
Abstract: A process for stably operating a continuous preparation process for obtaining acrolein or acrylic acid or a mixture thereof from propane, in which the feed rate of fresh propane to the process is utilized as a correcting element for stable steady-state operation.
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公开(公告)号：DE50311049D1
公开(公告)日：2009-02-26
申请号：DE50311049
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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Patent Agency Ranking
公开(公告)号：DE102007038157A1
公开(公告)日：2009-02-19
申请号：DE102007038157
申请日：2007-08-13
Inventor： BOELT HEINZ , DIETERLE MARTIN , FRITZ PETER MATTHIAS , ROSOWSKI FRANK , SCHINDLER GOETZ-PETER , SIMON FALK
IPC: B01J8/02
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公开(公告)号：DE102007006647A1
公开(公告)日：2008-08-07
申请号：DE102007006647
申请日：2007-02-06
Applicant: BASF SE
Inventor： DIETERLE MARTIN , SCHINDLER GOETZ-PETER , HORSTMANN CATHARINA , MUELLER-ENGEL KLAUS JOACHIM
Abstract: A process for regenerating a catalyst bed deactivated in the course of a heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, in which a gas comprising molecular oxygen is conducted at elevated temperature through the deactivated catalyst bed and, in the course of the regeneration, the content of molecular oxygen in the regeneration gas is increased repeatedly and the increase in the carbon oxide content of the regeneration gas as it flows through the deactivated catalyst bed is restricted to values of ≦̸5% by volume.
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公开(公告)号：DE502005004220D1
公开(公告)日：2008-07-03
申请号：DE502005004220
申请日：2005-11-11
Applicant: BASF SE
Inventor： CRONE SVEN , KLANNER CATHARINA , SCHINDLER GOETZ-PETER , DUDA MARK , BORGMEIER FRIEDER
IPC: C07C5/333 , C07C11/167
Abstract: Processes for producing butadiene from n-butane comprising: (a) providing a feed gas stream comprising n-butane; (b) non-oxidatively dehydrogenating the feed gas stream in the presence of a catalyst in a first dehydrogenation zone to form a first intermediate gas stream comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen; (c) oxidatively dehydrogenating the first intermediate gas stream in the presence of an oxygenous gas having an oxygen content of at least 75% by volume in a second dehydrogenation zone to form a second intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (d) compressing and cooling the second intermediate gas to form a first condensate stream comprising water and a third intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (e) compressing and cooling the third intermediate gas to form a second condensate stream comprising n-butane, butadiene and water and a fourth intermediate gas stream comprising n-butane, butadiene, hydrogen and carbon dioxide; (1) cooling the fourth intermediate gas stream to form a third condensate stream comprising n-butane and butadiene, and an offgas stream comprising carbon dioxide and hydrogen; (g) removing water from the second condensate stream and combining the second condensate stream and third condensate stream to form a C 4 hydrocarbon stream comprising n-butane and butadiene; and (h) separating the C 4 hydrocarbon stream to form a recylce stream comprising n-butane and a product stream comprising butadiene; wherein at least a portion of the recycle stream is fed to the first dehydrogenation zone.
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公开(公告)号：AT396162T
公开(公告)日：2008-06-15
申请号：AT05806496
申请日：2005-11-11
Applicant: BASF SE
Inventor： CRONE SVEN , KLANNER CATHARINA , SCHINDLER GOETZ-PETER , DUDA MARK , BORGMEIER FRIEDER
IPC: C07C5/333 , C07C11/167
Abstract: Processes for producing butadiene from n-butane comprising: (a) providing a feed gas stream comprising n-butane; (b) non-oxidatively dehydrogenating the feed gas stream in the presence of a catalyst in a first dehydrogenation zone to form a first intermediate gas stream comprising n-butane, 1-butene, 2-butene, butadiene and hydrogen; (c) oxidatively dehydrogenating the first intermediate gas stream in the presence of an oxygenous gas having an oxygen content of at least 75% by volume in a second dehydrogenation zone to form a second intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (d) compressing and cooling the second intermediate gas to form a first condensate stream comprising water and a third intermediate gas stream comprising n-butane, butadiene, hydrogen, carbon dioxide and steam; (e) compressing and cooling the third intermediate gas to form a second condensate stream comprising n-butane, butadiene and water and a fourth intermediate gas stream comprising n-butane, butadiene, hydrogen and carbon dioxide; (1) cooling the fourth intermediate gas stream to form a third condensate stream comprising n-butane and butadiene, and an offgas stream comprising carbon dioxide and hydrogen; (g) removing water from the second condensate stream and combining the second condensate stream and third condensate stream to form a C 4 hydrocarbon stream comprising n-butane and butadiene; and (h) separating the C 4 hydrocarbon stream to form a recylce stream comprising n-butane and a product stream comprising butadiene; wherein at least a portion of the recycle stream is fed to the first dehydrogenation zone.
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公开(公告)号：AT393133T
公开(公告)日：2008-05-15
申请号：AT04804419
申请日：2004-12-30
Applicant: BASF SE
Inventor： JOHANN THORSTEN , SCHINDLER GOETZ-PETER , BRODHAGEN ANDREAS , CRONE SVEN , DUDA MARK
IPC: C07C5/333 , C07C5/48 , C07C11/167
Abstract: The disclosure involves a process for preparing butadiene from n-butane. In the process, n-butane is first dehydrogenated autothermally under nonoxidative conditions to form a gas stream. The gas stream is then oxidatively dehydrogenated to form a second gas stream. From the second gas stream, a third gas stream containing n-butane, 2-butene and butadiene is obtained. From the third gas stream, a butadiene/butaine product stream is obtained and remaining n-butane and 2-butene is recycled into the first dehydrogenation zone.
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