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公开(公告)号：BRPI0612095A2
公开(公告)日：2011-01-04
申请号：BRPI0612095
申请日：2006-06-20
Applicant: BASF AG , DOW CHEMICAL CO
Inventor： SCHINDLER GOETZ-PETER , WALSDORFF CHRISTIAN , KOERNER REINHARD , GOEBBEL HANS-GEORG
IPC: C07D301/12
Abstract: The present invention relates to a process for producing propylene oxide comprising (I) reacting propene with hydrogen peroxide in the presence of a catalyst to give a mixture (GI) comprising propylene oxide, unreacted propene, and oxygen; (II) separating propylene oxide from mixture (GI) to give a mixture (GII) comprising propene and oxygen; (III) reducing the oxygen comprised in mixture (GII) at least partially by reaction with hydrogen in the presence of a catalyst comprising Sn and at least one noble metal.
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公开(公告)号：CA2430294C
公开(公告)日：2009-07-28
申请号：CA2430294
申请日：2001-12-03
Applicant: BASF AG
Inventor： MAGIN WERNER , HARTH KLAUS , SCHINDLER GOETZ-PETER
Abstract: The invention relates to a method for the regeneration of a dehydrogenation catalyst, comprising the steps (a)-(f): (a) flushing with inert gas at a pressure of 0.5 to 2.0 bar and a gas loading of 1 000 to 50 000 h-1; (b) passage of an oxygen-containing gas mixture, containing an inert gas, at a pressure of 2 to 20 bar and a gas loading of 1,000 to 50,000 h-1, over a period of 0.25 to 24 h with sequential or continuous increase of the oxygen concentration from an initial value of 0.01 to 1 vol. % O2 to a final value of 10 to 25 vol. % O2; (c) optional passage of an oxygen-containing gas mixture , containing an inert gas, at a pressure of 0.5 to 20 bar and a gas loading of 10 to 500h-1 over a period of 0.25 to 100 h with an oxygen concentration of 10 to 25 vol. % O2; (d) optional repeated rapid cyclical pressure changes of a factor of 2 to 20, within the range 0.5 to 20 bar; (e) flushing with an iner t gas; (f) activation of the catalyst with hydrogen, whereby at least one of steps (c) or (d) is carried out and the whole regeneration process occurs at a temperature of between 300 and 800 ~C.
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公开(公告)号：BRPI0519153A2
公开(公告)日：2008-12-30
申请号：BRPI0519153
申请日：2005-12-19
Applicant: BASF AG
Inventor： CRONE SVEN , SCHINDLER GOETZ-PETER , DUDA MARK , BORGMEIER FRIEDER , KLANNER CATHARINA
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, 2-butene, and butadiene; 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, and steam; compressing and cooling (c) to obtain stream (d2) comprising n-butane, butadiene, hydrogen, and steam; extractively distilling (d2) into stream (e1) comprising butadiene and stream (e2) comprising n-butane, hydrogen, and steam; optionally compressing and cooling (e2) to obtain stream (f1) comprising n-butane and water and stream (f2) comprising n-butane and hydrogen and optionally recycling (f1) into the first dehydrogenation zone; separating (f2) into stream (g1) comprising n-butane and stream (g2) comprising hydrogen by contacting (f2) with a high boiling absorbent and subsequently desorbing the gas constituents dissolved in the absorbent.
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公开(公告)号：DE102006017908A1
公开(公告)日：2007-10-25
申请号：DE102006017908
申请日：2006-04-18
Inventor： ADAM WOLFGANG , BOELT HEINZ , FRITZ PETER MATTHIAS , KLAPPER KLAUS , KONS GERMAIN , SCHINDLER GOETZ-PETER , SIMON FALK
IPC: B01J38/02
Abstract: The invention relates to a method and a device for the controlled regeneration of a catalyst and of a fired reactor, especially a catalyst and a reactor in a plant for producing olefins from a hydrocarbon-containing charge. During the regeneration phase of the catalyst for recovering the catalytic activity, the burners of the reactor are switched off. After the regeneration phase, the burners are re-ignited by means of inbuilt pilot burners. The pilot burners are monitored and their capacity is adjusted in such a manner that the heat loss of the reactor during the regeneration phase of the catalyst is compensated for.
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公开(公告)号：DE102005053233A1
公开(公告)日：2007-05-10
申请号：DE102005053233
申请日：2005-11-06
Applicant: BASF AG
Inventor： KOCH MICHAEL , SCHINDLER GOETZ-PETER , NEUMANN DIRK , HIBST HARTMUT , LANGE DE OLIVEIRA ARMIN , KLEIN JENS
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Patent Agency Ranking
公开(公告)号：DE102005052923A1
公开(公告)日：2007-05-10
申请号：DE102005052923
申请日：2005-11-03
Applicant: BASF AG
Inventor： DIETERLE MARTIN , SCHINDLER GOETZ-PETER , KLANNER CATHARINA
Abstract: Stable continuous process for the preparation of acrolein and/or acrylic acid from propane comprises heterogeneously catalyzed dehydrogenation of a propane to obtain a product gas mixture A; optionally introducing the mixture A into a first separation zone to obtain product gas mixture A1; introducing mixture A or A1 into a zone B, where in an oxidation reactor, the propylene is oxidized with molecular oxygen to form e.g. acrolein and/or acrylic acid as end product and product gas mixture B; and determining the molecular oxygen content of the product gas mixture B. Stable continuous process for the preparation of acrolein and/or acrylic acid from propane comprises heterogeneously catalyzed dehydrogenation of a propane in the presence of a molecular oxygen to obtain a product gas mixture A containing propane and propylene, in a first reaction zone A; optionally introducing the product gas mixture A into a first separation zone, to separate a partial quantity or more of the components (which are contained in the mixture and different from propane and propylene) to obtain a remaining product gas mixture A1 containing propane and propylene; introducing product gas mixture A or A1 into a second reaction zone B for feeding at least an oxidation reactor, where in at least an oxidation reactor the propylene contained in the gas mixture A or A1 is subjected to a selectively heterogeneously catalyzed partial gas-phase oxidation with molecular oxygen to form acrolein and/or acrylic acid as end product, non-converted propane, excess molecular oxygen and optionally gas mixture B containing non-converted propylene; separating the end product and subsequently recycling the residue gas containing propane, molecular oxygen, non-converted propylene, at least partially non-converted propane, molecular oxygen and optionally non-converted propylene as molecular oxygen containing cycle gas 1 by cycle gas method, into the reaction zone A; continuously supplying fresh propane into at least one of the zones such as reaction zone A, separation zone A, reaction zone B and separating zone B, where the supply of the fresh propane takes place at a rate, which exhibits a stationary value in the stable operating condition of the process; and determining the molecular oxygen content of the product gas mixture B and comparing with the given stationary target content of the molecular oxygen in the product gas mixture B for stable operating condition of the process; where, if the content of the molecular oxygen at any point of time in the product gas mixture B is larger than the stationary target content, the supply rate of the fresh propane supplied at this time is larger than its stationary value and if the content of the molecular oxygen at any point of time in the product gas mixture B is smaller than the stationary target content, the supply rate of the fresh propane supplied at this time is smaller than its stationary value.
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公开(公告)号：BRPI0418215A
公开(公告)日：2007-04-27
申请号：BRPI0418215
申请日：2004-12-30
Applicant: BASF AG
Inventor： JOHANN THORSTEN , SCHINDLER GOETZ-PETER , BRODHAGEN ANDREAS , CRONE SVEN , BENFER REGINA , HILL THOMAS , DUDA MARK
IPC: 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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88.发明专利
公开(公告)号：ZA200508942B
公开(公告)日：2007-04-25
申请号：ZA200508942
申请日：2005-11-04
Applicant: BASF AG
Inventor： SCHINDLER GOETZ-PETER , OTTO MACHAMMER , JOACHIM MUELLER-ENGEL KLAUS , CLAUS HECHLER , JOCHEN PETZOLDT , CHRISTOPH ADAMI , KLAUS HARTH
IPC: B01J23/62 , B01J23/63 , C07C20090101 , C07C45/33 , C07C45/34 , C07C45/35 , C07C51/25 , C07C253/26 , C07C255/08
Abstract: Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon involves partially dehydrogenating at least one saturated hydrocarbon under heterogeneous catalysis and using the resulting product gas mixture for heterogeneously catalyzed partial oxidation and/or ammoxidation of the partially dehydrogenated hydrocarbon present in the product gas mixture. Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon involves: (a) dehydrogenating a saturated hydrocarbon (preferably propane or isobutene) using a heterogeneous catalyst in the gas phase to form a product gas mixture, comprising one or more partially dehydrogenated hydrocarbon, leaving constituents present in the product gas mixture, other than the saturated hydrocarbon and the partially dehydrogenated hydrocarbon; or partly or fully removing them to obtain a product gas mixture; and (b) partial oxidizing and/or ammoxidizing the product gas mixtures using one or more heterogeneous catalyst. The method includes at least one mechanical separation operation so that solid particles present in the gas mixtures can be removed.
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公开(公告)号：AU2002234536B2
公开(公告)日：2006-12-14
申请号：AU2002234536
申请日：2001-12-03
Applicant: BASF AG
Inventor： HARTH KLAUS , SCHINDLER GOETZ-PETER , MAGIN WERNER
Abstract: A process for regenerating a dehydrogenation catalyst comprises the steps (a)-(f): (a) flushing with inert gas at a pressure of from 0.5 to 2.0 bar and a gas hourly velocity of from 1000 to 50 000 h -1 ; (b) passing an oxygen-containing gas mixture comprising an inert gas through the catalyst at a pressure of from 2 to 20 bar and a gas hourly velocity of from 1000 to 50 000 h -1 for from 0.25 to 24 hours while increasing the oxygen concentration stepwise or continuously from an initial value of from 0.01 to 1% by volume of O 2 to a final value of from 10 to 25% by volume of O 2 ; (c) optionally passing an oxygen-containing gas mixture comprising an inert gas through the catalyst at a pressure of from 0.5 to 20 bar and a gas hourly velocity of from 10 to 500 h -1 for from 0.25 to 100 h, with the oxygen concentration being from 10 to 25% by volume of O 2 ; (d) optionally changing the pressure repeatedly, rapidly and in opposite directions by a factor of from 2 to 20 within the range from 0.5 to 20 bar; (e) flushing with an inert gas; (f) activating the catalyst by means of hydrogen; where at least one of the steps (c) or (d) is carried out and the entire regeneration process is carried out at from 300 to 800° C.
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公开(公告)号：DE102005010586A1
公开(公告)日：2006-09-14
申请号：DE102005010586
申请日：2005-03-08
Applicant: BASF AG
Inventor： CRONE SVEN , MACHHAMMER OTTO , SCHINDLER GOETZ-PETER , BORGMEIER FRIEDER
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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