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公开(公告)号:ZA200708513B
公开(公告)日:2011-10-26
申请号:ZA200708513
申请日:2007-10-05
Applicant: BASF AG
Inventor: PETZOLDT JOCHEN , CREMER ULRICH , DIETERLE MARTIN
IPC: B01J20060101
Abstract: The invention relates to a method for filling a reactor with a catalyst, to the thus obtained reactors filled with said catalyst, and to the use thereof for carrying out catalytic gas phase reactions.
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公开(公告)号:DE102004021763A1
公开(公告)日:2005-05-25
申请号:DE102004021763
申请日:2004-04-30
Applicant: BASF AG
Inventor: DIETERLE MARTIN , ARNOLD HEIKO , MUELLER-ENGEL KLAUS JOACHIM , CREMER ULRICH
IPC: C07C51/25 , C07C57/055
Abstract: In a method for the partial gas-phase oxidation of acrolein to acrylic acid using two successive multi-metal oxide catalysts, each containing molybdenum and vanadium, extended operation is achieved by performing stage 1 in an isothermal reactor and stage 2 in an adiabatic reactor, with an acrolein conversion of at least 90 mol% in stage 1. A method for the extended, heterogeneously-catalysed, gas-phase partial oxidation of acrolein to acrylic acid by passing a starting mixture containing acrolein, molecular oxygen and inert diluent gas: (a) through a first catalyst bed (I) at elevated temperature; and then (b) (optionally after adding more oxygen and/or diluent and optionally after changing the temperature by direct or indirect heat exchange) through a second catalyst bed (II) at elevated temperature, both catalysts (I) and (II) being based on multi-metal oxides containing molybdenum and vanadium. In this method, catalyst (I) is in an isothermal reactor and catalyst (II) is in an adiabatic reactor, and the conversion of acrolein in a single pass through catalyst (I) is at least 90 mol%.
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公开(公告)号:BRPI0608407B1
公开(公告)日:2015-10-06
申请号:BRPI0608407
申请日:2006-03-07
Applicant: BASF AG
Inventor: PETZOLDT JOCHEN , DIETERLE MARTIN , CREMER ULRICH
Abstract: processo para carregar um reator com partículas de catalisador, reator, processo para preparar ácido acrilico, e, uso de um reator. a invenção refere-se a um processo para a carga de um reator com um catalisador, a reatores assim obtidos carregados com o referido catalisador, e ao uso dos mesmos para a execução de reações em fase gasosa catalíticas.
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公开(公告)号:DE102007019597A1
公开(公告)日:2008-05-15
申请号:DE102007019597
申请日:2007-04-24
Applicant: BASF AG
Inventor: HAMMON ULRICH , FRIESE THORSTEN , PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM , CREMER ULRICH , RAICHLE ANDREAS
IPC: C07C57/055
Abstract: Process for implementing a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid in a solid catalyst bed comprises using a tube bundle reactor in reaction tube of a vertically arranged bundle of reaction tubes (9), which are closed by a reactor jacket; where: the both ends of the individual reaction tubes are open and each reaction tubes terminate with its upper end in a passage of a top tube plate sealed above in reactor jacket and with its lower end in a passage of a down tube plate (5) sealed below in reactor jacket. Process for implementing a heterogeneously catalyzed partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid in a solid catalyst bed comprises using a tube bundle reactor in reaction tube of a vertically arranged bundle of reaction tubes (9), which are closed by a reactor jacket; where: the both ends of the individual reaction tubes are open and each reaction tubes terminate with its upper end in a passage of a top tube plate sealed above in reactor jacket and with its lower end in a passage of a down tube plate (5) sealed below in reactor jacket; the exterior of the reaction tubes, the top and the down tube plate, and the reactor jacket differentiate conjointly to the reaction tube surrounding chamber, and each of the two tube plates is spanned by at least a reactor cover (6) having an opening, with which, in order to set start-up in several respects, to the reaction tubes of the tube bundle reactor, at least an opening (3) in one of the both reactor covers supplies a reaction gas inlet mixture (1) containing >= 3 vol.% of acrolein or methacrolein and additionally molecular oxygen; at least an opening of the other reactor cover discharges by partial gas phase oxidation of the acrolein to acrylic acid or methacrolein to methacrylic acid, where the passage of the product gas mixture (2) containing acrylic acid or methacrylic acid results in the solid catalyst bed, which is present in the reaction tubes; at least a liquid heat exchange medium is supplied on the jacket side of the tube bundle reactor around the reaction tubes in such a manner that each of the two surfaces, which turned to each other, of the two tube plates is moistened by liquid heat exchange medium; the liquid heat exchange medium is inwardly introduced with a temperature T w(in) into the reaction tubes surrounding chamber and is outwardly emitted with the temperature T w(out) from the reaction tubes surrounding chamber; the temperature T w(in) of the liquid heat exchange medium, which moistens the tube plate spanned by the tube cover having the at least one opening, is at least 290[deg] C; the reaction gas inflow mixture entering into the opening has a temperature of = 285[deg] C, and the temperature of the surface of the reactor plate (4) turned to the reactor cover having at least an opening, has a value of = 285[deg] C.
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公开(公告)号:DE102007005606A1
公开(公告)日:2008-04-03
申请号:DE102007005606
申请日:2007-01-31
Applicant: BASF AG
Inventor: RAICHLE ANDREAS , MUELLER-ENGEL KLAUS-JOACHIM , ROSOWSKI FRANK , CREMER ULRICH , HUBER SABINE , ALTWASSER STEFAN
IPC: B01J37/04 , B01J21/18 , C07B33/00 , C07C45/35 , C07C57/05 , C07C57/055 , C07D307/60
Abstract: Preparation of catalyst molded body, whose active mass is a multi-element oxide, comprises adding a finely ground precursor mixture, as a finely ground molding agent, to the graphite until the desired geometry is formed, thermally treating the catalyst precursor molded body and obtaining the catalyst molded body at increased temperature, where the specific surface is 100-1000 m2>/g and the particle diameter of the finely ground graphite is 0.5-10 mu m. An independent claim is included for: (1) a catalyst molded body obtained by the process; and (2) a procedure for the heterogeneous catalytic gas phase reaction, where the catalyst comprises the catalyst molded body.
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公开(公告)号:DE102006000996A1
公开(公告)日:2007-07-12
申请号:DE102006000996
申请日:2006-01-05
Applicant: BASF AG
Inventor: CREMER ULRICH , WEGERLE ULRIKE , LAQUA GERHARD , HAMMON ULRICH , MUELLER-ENGEL KLAUS JOACHIM
Abstract: Heterogeneously catalyzed gas phase partial oxidation of organic compound with oxygen over fixed catalyst bed involves: recovering quality of the fixed catalyst bed by not replacing entire fixed catalyst bed but only its portion by a replacement fixed catalyst bed part; when increasing operating time is accompanied by increasing reduction in quality of the fixed catalyst bed, such that volume-specific activity of the replacement fixed catalyst bed part is lower than volume-specific activity of replaced fixed catalyst bed part in its freshly installed state. Method for heterogeneously catalyzed gas phase partial oxidation of at least one organic starting compound with molecular oxygen over a fixed catalyst bed freshly installed into a reaction chamber, involving conducting a reaction gas mixture comprising the at least one organic starting compound and the molecular oxygen through the fixed catalyst bed, for partial oxidation; and removing the heat of reaction by indirect heat exchange with a fluid heat carrier conducted outside the reaction chamber, involves: recovering the quality of the fixed catalyst bed by not replacing the entire fixed catalyst bed but only its portion by a replacement fixed catalyst bed part; when increasing operating time is accompanied by an increasing reduction in the quality of the fixed catalyst bed, such that the volume-specific activity of the replacement fixed catalyst bed part is lower than the volume-specific activity of the replaced fixed catalyst bed part in its freshly installed state.
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公开(公告)号:BRPI0608407A2
公开(公告)日:2010-11-16
申请号:BRPI0608407
申请日:2006-03-07
Applicant: BASF AG
Inventor: PETZOLDT JOCHEN , CREMER ULRICH , DIETERLE MARTIN
Abstract: A method for filling a reactor with catalyst particles (I) containing an active multi-element oxide material (II) (at least on the surface), involves using catalyst particles containing a substance (III) which is liquid at 20[deg]C and 1 atm. Independent claims are also included for (1) a reactor filled with (I); and (2) a method for the production of acrylic acid by the catalytic gas-phase oxidation of acrolein in such a reactor.
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公开(公告)号:SG160371A1
公开(公告)日:2010-04-29
申请号:SG2010015873
申请日:2006-03-07
Applicant: BASF AG
Inventor: PETZOLDT JOCHEN , CREMER ULRICH , DIETERLE MARTIN
Abstract: Method for filing a reactor The present invention relates to a process for charging a reactor with a catalyst, to the resulting charged reactors, and to the use thereof for carrying out catalytic gas phase reactions.
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公开(公告)号:BRPI0509988A
公开(公告)日:2007-10-16
申请号:BRPI0509988
申请日:2005-04-21
Applicant: BASF AG
Inventor: CREMER ULRICH , DIETERLE MARTIN , JOURDAN SABINE , PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM
Abstract: The invention relates to a method for producing acrylic acid by the heterogenically catalysed partial oxidation of at least one C3 hydrocarbon precursor compound, whereby the amount of minor constituents that are formed in said method is
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公开(公告)号:DE102005010645A1
公开(公告)日:2005-08-04
申请号:DE102005010645
申请日:2005-03-08
Applicant: BASF AG
Inventor: PETZOLDT JOCHEN , CREMER ULRICH , DIETERLE MARTIN
Abstract: A method for filling a reactor with catalyst particles (I) containing an active multi-element oxide material (II) (at least on the surface), involves using catalyst particles containing a substance (III) which is liquid at 20[deg]C and 1 atm. Independent claims are also included for (1) a reactor filled with (I); and (2) a method for the production of acrylic acid by the catalytic gas-phase oxidation of acrolein in such a reactor.
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