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    21.
    发明专利
    未知

    公开(公告)号：BRPI0416633B1

    公开(公告)日：2014-04-08

    申请号：BRPI0416633

    申请日：2004-11-16

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: B01J23/888 ,  B01J35/00 ,  B01J35/02 ,  C07C45/35 ,  C07C47/22

    Abstract: The invention relates to a method for the heterogeneously-catalysed gas-phase partial oxidation of propene to produce acrolein with a propene loading of the catalyst bed of > 120 Nl/l h and a total content of CO2 and saturated hydrocarbons in the reaction product of less than 15 mol. %, whereby the catalyst in the catalyst bed is an annular full catalyst, the active mass of which is a multi-metal oxide in which the molar ratios are Co/Fe = 2 to 4 and Co/Mo = 0.3 to 0.7.

    Exothermic heterogeneously catalyzed partial gas phase oxidation of a starting compound e.g. propylene to a target compound e.g. acrylic acid, comprises oxidizing a gas mixture containing e.g. the starting compound and molecular oxygen
    23.
    发明专利
    Exothermic heterogeneously catalyzed partial gas phase oxidation of a starting compound e.g. propylene to a target compound e.g. acrylic acid, comprises oxidizing a gas mixture containing e.g. the starting compound and molecular oxygen 未知

    公开(公告)号：DE102006054214A1

    公开(公告)日：2008-05-21

    申请号：DE102006054214

    申请日：2006-11-15

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  DIETERLE MARTIN ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C57/05 ,  C07B33/00 ,  C07C47/22

    Abstract: Conducting an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound in two different operating conditions I and II, comprises oxidizing a reaction gas starting mixture containing the organic starting compound, molecular oxygen and at least an inert dilution gas, through a solid bed catalyst present in the tube of a tube bundle reactor to produce a product mixture containing the organic target compound. Conducting an exothermic heterogeneously catalyzed partial gas phase oxidation of an organic starting compound to an organic target compound in two different operating conditions I and II, comprises oxidizing a reaction gas starting mixture containing the organic starting compound, molecular oxygen and at least an inert dilution gas, through a solid bed catalyst present in the tube of a tube bundle reactor to produce a product mixture containing the organic target compound; where: the tubes are surrounded by spaces for adjusting the reaction temperature; at least a fluid thermal carrier is passed in with an inlet temperature (Ti) and passed out with an outlet temperature (To) through the tubes; the outlet temperature is greater than the inlet temperature; the solid bed catalyst is charged with a load (L1) having the organic starting compound in an operating condition I at an inlet temperature (Ti1) and is charged with a load (L2) having the organic starting compound in the operating condition II at an inlet temperature (Ti2); the load (L2) is greater than the load (L1) and the inlet temperature (Ti2) is greater than (Ti1); the inlet temperature (Ti1) is elevated to the inlet temperature (Ti2) during the change of operating condition I to the operating condition II and subsequently the loading of the solid bed catalyst with the organic starting compound increases the (L1) value to the (L2) value.

    Partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid, useful e.g. as monomer to prepare polymers, comprises using a tube bundle reactor in reaction tube of a vertically arranged reaction tubes
    24.
    发明专利
    Partial gas phase oxidation of acrolein to acrylic acid or methacrolein to methacrylic acid, useful e.g. as monomer to prepare polymers, comprises using a tube bundle reactor in reaction tube of a vertically arranged reaction tubes 未知

    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.

    25.
    发明专利
    未知

    公开(公告)号：AT362909T

    公开(公告)日：2007-06-15

    申请号：AT04722167

    申请日：2004-03-20

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  ARNOLD HEIKO ,  RUPPEL WILHELM ,  MUELLER-ENGEL KLAUS

    IPC: C07C57/055 ,  C07C51/25

    Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed which consists of at least two fixed-bed catalyst bed zones and is arranged in two successive temperature zones A and B. The transition from temperature zone A to temperature zone B does not coincide with a transition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zone.

    Preparing organic target compound by heterogeneously catalyzed gas phase partial oxidation of organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of compound from gas stream
    27.
    发明专利
    Preparing organic target compound by heterogeneously catalyzed gas phase partial oxidation of organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of compound from gas stream 未知

    公开(公告)号：DE102005017050A1

    公开(公告)日：2006-10-19

    申请号：DE102005017050

    申请日：2005-04-12

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  MUELLER-ENGEL KLAUS JOACHIM ,  PETZOLDT JOCHEN ,  HAMMON ULRICH

    IPC: C07B33/00 ,  C07B35/04 ,  C07B63/00 ,  C07C57/05 ,  C07C57/07

    Abstract: Preparing at least one organic target compound (I) by heterogeneously catalyzed gas phase partial oxidation of at least one organic precursor compound with molecular oxygen in at least two oxidation reactor systems comprising catalyst charges and are operated in parallel to obtain at least two product gas streams (II) each comprising (I) and each stemming from one of the at least two oxidation reactor systems and subsequent removal of (I) from (II) to obtain at least one crude target product stream, where the process comprises before, during and/or after the removal, mixing together (II). Preparing at least one organic target compound (I) by heterogeneously catalyzed gas phase partial oxidation of at least one organic precursor compound with molecular oxygen in at least two oxidation reactor systems comprising catalyst charges and are operated in parallel to obtain at least two product gas streams (II) each comprising (I) and each stemming from one of the at least two oxidation reactor systems and subsequent removal of (I) from (II) to obtain at least one crude target product stream, where the process comprises before the removal, mixing together (II); or in the course of the removal, mixing together at least two of any target product-comprising subsequent streams obtained on the route from (II) to the at least one crude target product stream; and/or after the removal from (II), mixing together any crude target product streams obtained in the course of the removal, to form a mixture stream, where at least one of the catalyst charges of the at least two oxidation reactor systems operated in parallel, over which the target compounds comprised in the mixture stream were formed, comprises at least one portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out longer than over all portions of catalyst of the at least one other catalyst charge. An independent claim is included for an apparatus comprising two oxidation reactor systems which are charged with catalysts that are suitable for the preparation of (I) by heterogeneously catalyzed partial oxidation of an organic precursor compound and at whose outlet is disposed in each case a line for the removal of the product gas stream comprising (I) from the particular oxidation reactor system, which lines are combined with increasing distance from the two oxidation reactor systems to give a product gas line which leads to an apparatus in which the product gas stream can be condensed partly or fully, where the catalyst charge of one of the two oxidation reactor systems comprises at least one portion of catalyst over which more target product has already been generated than over the portions of catalyst of the catalyst charge of the other oxidation reactor system.

    28.
    发明专利
    未知

    公开(公告)号：BRPI0408629A

    公开(公告)日：2006-03-28

    申请号：BRPI0408629

    申请日：2004-03-20

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  DIETERLE MARTIN ,  ARNOLD HEIKO ,  RUPPEL WILHELM ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C51/25 ,  C07C57/05

    Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrylic acid, the propene-containing starting reaction gas mixture is oxidized in a first reaction stage using a fixed catalyst bed 1 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the acrolein-containing product gas mixture of the first reaction stage is then oxidized in a second reaction stage using a fixed catalyst bed 2 which consists of a plurality of fixed catalyst bed zones and is accommodated in two successive temperature zones C, D, and the transition from one temperature zone to another temperature zone within one reaction stage does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.

    Long-term operation of heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid, comprises interrupting gas phase partial oxidation before temperature increase of fixed catalyst bed is permanent
    29.
    发明专利
    Long-term operation of heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid, comprises interrupting gas phase partial oxidation before temperature increase of fixed catalyst bed is permanent 未知

    公开(公告)号：DE10351269A1

    公开(公告)日：2005-06-02

    申请号：DE10351269

    申请日：2003-10-31

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C51/16 ,  C07C51/25 ,  C07C57/05

    Abstract: A heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid is operated by interrupting gas phase partial oxidation before temperature increase of fixed catalyst bed is permanently 10[deg]C, and at 250-500, preferably 200-450[deg]C, initially conducting a gas mixture consisting of molecular oxygen, inert gas, and optionally steam through intermediate cooler and finally through fixed catalyst bed. The long-term operation of heterogeneously catalyzed gas phase partial oxidation of propene to acrylic acid involves interrupting gas phase partial oxidation before temperature increase of fixed catalyst bed is permanently 10[deg]C, and at 250-500, preferably 200-450[deg]C, initially conducting a gas mixture consisting of molecular oxygen, inert gas, and optionally steam through intermediate cooler and finally through fixed catalyst bed. A starting reaction gas mixture comprising propene, molecular oxygen, and inert gas, and contains the molecular oxygen and propene in a molar ratio of >= 1, is conducted in a first reaction stage, at elevated temperature, over a first fixed catalyst bed whose catalysts are such that their active composition is a multilevel oxide containing molybdenum and/or tungsten, and also bismuth, tellurium, antimony, tin, or copper, in such a way that propene conversion in single pass is >= 93 mol% and the accompanying selectivity of acrolein formation and of acrylic acid by-production taken together are >= 90 mol%, optionally reducing the temperature of the product gas mixture leaving the first reaction stage by direct and/or indirect cooling and optionally adding molecular oxygen and/or inert gas to the product gas mixture, and then conducting the product gas mixture, as starting reaction gas mixture which comprises acrolein, molecular oxygen, and inert gas and contains the molecular oxygen and acrolein in a molar ratio of 0.5, in a second reaction stage, at elevated temperature, over a second fixed catalyst bed whose catalysts are such that their active composition is multilevel oxide containing molybdenum and vanadium, in such a way that acrolein conversion in single pass is >=90 mol% and the selectivity of acrylic acid formation assessed over both reaction stages, based in propene converted, is >=80 mol%, and by, in order to counteract the deactivation of the fixed catalysts bed, independently increasing the temperature of the particular catalyst bed over time.

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