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公开(公告)号：BRPI0519387A2
公开(公告)日：2009-01-20
申请号：BRPI0519387
申请日：2005-12-20
Applicant: BASF AG
Inventor： CRONE SVEN , MACHHAMMER OTTO , SCHINDLER GOETZ-PETER
Abstract: The invention relates to a process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the feed gas stream a comprising propane and an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a nonoxidative catalytic, autothermal dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, steam and hydrogen; C) product gas stream b is cooled and steam is removed by condensation to obtain a steam-depleted product gas stream c; D) uncondensable or low-boiling gas constituents are removed by contacting product gas stream c with an inert absorbent and subsequently desorbing the gases dissolved in the inert absorbent to obtain a C 3 hydrocarbon stream d 1 and an offgas stream d 2 comprising methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide and hydrogen; E) the C 3 hydrocarbon stream d 1 is cooled and compressed to obtain a liquid C 3 hydrocarbon stream e1; F) the liquid C 3- hydrocarbon stream e 1 is fed into a first distillation zone and separated distillatively into a stream f 1 composed of propane and propene and a stream f 2 comprising ethane and ethene; G) stream f 1 is fed into a (second) distillation zone and separated distillatively into a product stream g 1 composed of propene and a stream g 2 composed of propane, and stream g 2 is recycled at least partly into the dehydrogenation zone.
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公开(公告)号：BRPI0518872A2
公开(公告)日：2008-12-16
申请号：BRPI0518872
申请日：2005-12-07
Applicant: BASF AG
Inventor： CRONE SVEN , KLANNER CATHARINA , SCHINDLER GOETZ-PETER , DUDA MARK , BORGMEIER FRIEDER
IPC: C07C5/333 , C07C11/167
Abstract: A process for preparing butadiene, comprising nonoxidatively dehydrogenating n-butane from a stream (a) in a first dehydrogenation zone to obtain stream (b) comprising 1-butene and 2-butene; oxidatively dehydrogenating the 1-butene and 2-butene of (b) in the presence of an oxygenous gas in a second dehydrogenation zone to obtain stream (c) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; compressing and cooling (c) to obtain stream (d2) comprising n-butane, butadiene, hydrogen, carbon dioxide, and steam; extractively distilling (d2) into stream (e1) comprising butadiene and stream (e2) comprising n-butane, hydrogen, carbon dioxide, and steam; compressing and cooling (e2) to obtain stream (f1) comprising n-butane and water and stream (f2) comprising n-butane, hydrogen, and carbon dioxide; cooling (f2) to obtain stream (g1) comprising n-butane and stream (g2) comprising carbon dioxide and hydrogen; phase separating water from (f1) to obtain stream (h1) comprising n-butane; and recycling (h1) into the first dehydrogenation zone.
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公开(公告)号：DE102006017906A1
公开(公告)日：2007-10-25
申请号：DE102006017906
申请日：2006-04-18
Inventor： BOELT HEINZ , FRITZ PETER MATTHIAS , KONS GERMAIN , SCHINDLER GOETZ-PETER , SIMON FALK
Abstract: The invention relates to a method and a device for putting into service a reactor and a catalyst, especially a catalyst and a reactor for dehydrogenating a hydrocarbon-containing charge in a plant for producing olefins. Before being put into service, the catalyst and the reactor run through a plurality of oxidation and reduction phases, thereby releasing the chloride contained in the catalyst. The released chloride is carried off into the atmosphere in a gaseous form.
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公开(公告)号：DE102005053232A1
公开(公告)日：2007-05-10
申请号：DE102005053232
申请日：2005-11-06
Applicant: BASF AG
Inventor： KOCH MICHAEL , SCHINDLER GOETZ-PETER , WESSEL HELGE , NEUMANN DIRK
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公开(公告)号：DE102005053231A1
公开(公告)日：2007-05-10
申请号：DE102005053231
申请日：2005-11-06
Applicant: BASF AG
Inventor： NEUMANN DIRK , KOCH MICHAEL , SCHINDLER GOETZ-PETER , BENFER REGINA , KAIBEL GERD , WAGNER HANS-GUENTER , PAESLE PETER
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Patent Agency Ranking
公开(公告)号：DE102005051401A1
公开(公告)日：2007-04-26
申请号：DE102005051401
申请日：2005-10-25
Applicant: BASF AG
Inventor： KLANNER CATHARINA , DIETERLE MARTIN , SCHINDLER GOETZ-PETER , CHENG TSUNG-CHIEH , MUELLER-ENGEL KLAUS JOACHIM
Abstract: Preparation of acrolein/acrylic acid from propane comprises supplying reaction gas mixture input stream A to a reaction zone A; supplying dehydrogenated propane gas stream to obtain a product gas mixture; removing the product mixture stream A; dividing the product gas mixture stream A into component streams (I) and (II); feeding the component stream (II) in a second reaction zone B into an oxidative reactor, in which propylene in stream (II) is oxidized to form a product gas mixture B containing e.g. acrolein/acrylic acid as final product and separating the final product. Preparation of acrolein and/or acrylic acid from propane comprises supplying a reaction gas mixture input stream A (which is produced by merging at least four different gaseous initial streams 1, 2, 3 and 4) to the inlet of the first reaction zone A by at least a catalyst bed; optionally further supplying partially, heterogeneously catalyzed dehydrogenated propane gas stream to the mixture to obtain a product gas mixture containing propane and propylene; removing the obtained product gas mixture stream A from the first reaction zone A by discharge opening; dividing the product gas mixture stream A into two component streams (I) and (II) with identical composition, where the component stream (I) is fed back as gaseous initial stream 1 into the first reaction zone A in a first gas cycle operation and the component stream (II) is optionally led into the first separation zone A, to separate partial or large quantity of different propane and propylene components and to produce a residual product gas mixture stream A1 containing propane and propylene; feeding the component stream (II) or the product gas mixture in a second reaction zone B into at least an oxidative reactor, in which the propylene contained in the component stream (II) or in the product gas mixture stream A1 is subjected to selective heterogeneously catalyzed partial gaseous phase oxidation with molecular oxygen to form a product gas mixture B containing acrolein and/or acrylic acid as final product, optionally unconverted propane and propylene, and surplus molecular oxygen; removing the product gas mixture stream B from the reaction zone B; separating the final product, where the residual gas containing unconverted propane and propylene, and molecular oxygen is fed back as gaseous initial stream 2 in a second gas cycle operation into the reaction zone A (when the gaseous initial streams 2, 3 and 4 and optionally a gaseous stream different from the 1 are merged to a single propelled jet gaseous mixture stream); and subsequently operating the mixture with gaseous propelled jet mixture stream as propelled jet of a jet pump, which comprises a jet nozzle, a mixing path, a diffuser and a suction intake socket; where the direction of the propulsion of the propelled jet by the jet nozzle over a mixing path and the diffuser, points towards the inlet of the first reaction zone A and the suction effect of the suction intake socket, points towards the direction of the discharge opening of the first reaction zone A leading to the product gas mixture stream A and the component stream (I) is sucked through the negative pressure produced in the suction intake socket along with the splitting up of the product gas mixture A into the two component stream, and is transported with simultaneous mixing of propelled jet by the mixing path over the diffuser and the obtained reaction gas mixture input stream A is left into the inlet of the first reaction zone A; the gaseous initial streams 1, 2 and 3 is a propane, the gaseous initial stream 4 is a molecular hydrogen and the gaseous initial stream 3 is a fresh propane; the first gaseous initial stream 2 and 3 and optionally stream 1 and stream 4 are combined in an arbitrary sequence to a single gaseous mixture stream and stream 4 is added to the gaseous initial mixture stream under the formation of the gaseous propelled jet mixture stream.
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公开(公告)号：DE102005013039A1
公开(公告)日：2006-09-21
申请号：DE102005013039
申请日：2005-03-18
Applicant: BASF AG
Inventor： MACHHAMMER OTTO , SCHINDLER GOETZ-PETER , ADAMI CHRISTOPH , HECHLER CLAUS , DIETERLE MARTIN
Abstract: Acrolein and/or acrylic acid is prepared by feeding to a first reaction zone A at least two gaseous, propane-containing feed streams comprising fresh propane, and in reaction zone A, subjecting their propane fed to a heterogeneously catalyzed dehydrogenation to obtain a product gas mixture A comprising propane and propylene. Preparation of acrolein and/or acrylic acid involves feeding to a first reaction zone A at least two gaseous, propane-containing feed streams having fresh propane and in reaction zone A, subjecting their propane fed in this way to a heterogeneously catalyzed dehydrogenation to obtains a product gas mixture A comprising propane and propylene; conducting product gas mixture A out of reaction zone A and in a first separation zone A, removing a portion of the constituents other than propane and propylene in product gas mixture A and using remaining product gas mixture A' comprising propane and propylene; in a second reaction zone B to charge an oxidation reactor and, in the oxidation reaction, subjecting the propylene present in product gas mixture A' to a catalyst gas phase partial oxidation with molecular oxygen to give a product gas mixture B having acrolein or acrylic acid as the target product and also excess molecular oxygen; and conducting product gas mixture b out of reaction zone B and in a second separation zone, removing target product present in product gas mixture B, and of the remaining residual gas having unconverted propane, molecular oxygen and any unconverted propylene as one of the two-propane-containing feed streams into reaction zone A, where this recycling into he reaction zone A along the reaction path of the catalyzed dehydrogenation of propane in reaction zone A is effected such that at the feed point, >=5 mol.% of the propane fed to reaction zone A via the other feed streams has already been converted under dehydrogenating conditions in reaction zone A.
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公开(公告)号：DE102005012291A1
公开(公告)日：2006-09-21
申请号：DE102005012291
申请日：2005-03-17
Applicant: BASF AG
Inventor： CRONE SVEN , MACHHAMMER OTTO , SCHINDLER GOETZ-PETER , BORGMEIER FRIEDER
Abstract: Preparation of propene from propane comprises preparing a feed stream containing propane; feeding the feed stream to a dehydrogenation zone; cooling the obtained product gas stream; contating the cooled product gas stream with a selective inert absorption agent; optionally depressurizing the obtained propane charged absorption agent stream; and releasing a propene-containing gas stream. Preparation of propene from propane comprises: (i) preparing a feed stream containing propane; (ii) feeding the feed stream containing propane, optionally: steam and an oxygen-containing gas stream to a dehydrogenation zone and propane undergoes a dehydrogenation to give propene (where a product gas stream (b) containing propane, propene, methane, ethane, ethene, carbon monoxide, carbon dioxide, steam, and optionally hydrogen and oxygen, is obtained); (iii) cooling (b) and optionally compressing and steam separating, by condensation, to give a product gas stream (c) stripped of steam; (iv) contacting (c) with a selective inert absorption agent, which selectively absorbs propene in a first absorption zone, to give an essentially propane charged absorption agent stream (d1) and a gas stream (d2) containing propane, methane, ethane, ethene, carbon monoxide, carbon dioxide and hydrogen; (v) optionally depressurizing (d1), in a first desorption zone, to give an essentially propene-charged absorption agent stream (e1) and a gas stream (e2) (which is recycled into the first absorption zone), containing propene; and (vi) releasing a propene-containing gas stream (f1) from (d1) and (e1) in at least one second desorption zone by depressurization, heating and/or stripping of the absorption agent stream (d1) and (e1) with recycling of the selective absorption agent.
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公开(公告)号：CA2599255A1
公开(公告)日：2006-09-14
申请号：CA2599255
申请日：2006-03-03
Applicant: BASF AG
Inventor： CRONE SVEN , MACHHAMMER OTTO , BORGMEIER FRIEDER , SCHINDLER GOETZ-PETER
Abstract: The invention relates to a process for preparing propene from propane, comprising the steps: A) a feed gas stream a comprising propane is provided; B) the feed gas stream a comprising propane, if appropriate steam and if appropriate and 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, nitrogen, carbon monoxide, carbon dioxide, steam, if appropriate hydrogen and if appropriate oxygen; C) the product gas stream b is cooled, if appropriate compressed and steam is removed by condensation to obtain a steam-depleted product gas stream c; D) uncondensable or low-boiling gas constituents are removed by contacting the product gas stream c with an inert absorbent and subsequently desorbing the gases dissolved in the inert absorbent to obtain a C 3 hydrocarbon stream d 1 and an offgas stream d 2 comprising methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, if appropriate hydrogen and if appropriate oxygen; E) the Ca hydrocarbon stream d 1 is cooled and if appropriate compressed to obtain a gaseous or liquid Ca hydrocarbon stream e 1; F) the C 3 hydrocarbon stream e 1 is if appropriate fed into a first distillation zone and separated distillatively into a stream f 1 composed of propane and propene and a stream f 2 comprising ethane and ethene; G) the stream e 1 or f 1 is fed into a (second) distillation zone and separated distillatively into a product stream g 1 composed of propene and a stream g 2 composed of propane, the stream g 2 being recirculated at least partially into the dehydrogenation zone.
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公开(公告)号：CA2594355A1
公开(公告)日：2006-07-13
申请号：CA2594355
申请日：2006-01-04
Applicant: BASF AG
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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