Method for producing formaldehyde
    51.
    发明专利

    公开(公告)号:NZ547317A

    公开(公告)日:2010-09-30

    申请号:NZ54731704

    申请日:2004-12-23

    Applicant: BASF AG

    Abstract: A method for the production of formaldehyde by gas phase oxidation of methanol vapour with a gas flow containing a molecular oxygen in the presence of solid bed catalyst containing iron and molybdenum is carried out in a reactor (1) comprising thermal sheet metal plates (2) which are arranged in the longitudinal direction of the reactor (1) and spaced from each other. A heat transfer medium flows through the gaps between the plates. The heat transfer medium is transferred via inlets and outlets 3, 4 to the thermal sheet steel plates (2), and gaps (5) between the thermal sheet steel metal plates (2) and which are filled with the solid bed catalyst and into which the gas containing the methanol vapour and the molecular oxygen flows.

    52.
    发明专利
    未知

    公开(公告)号:BRPI0417455A

    公开(公告)日:2007-05-22

    申请号:BRPI0417455

    申请日:2004-12-23

    Applicant: BASF AG

    Abstract: A process for preparing formaldehyde by gas-phase oxidation of methanol vapor by means of a gas stream comprising molecular oxygen in the presence of a fixed-bed catalyst comprising iron and molybdenum, wherein the process is carried out in a reactor ( 1 ) having heat-exchange plates ( 2 ) which are arranged in the longitudinal direction of the reactor ( 1 ) and have a spacing between them and through which a heat transfer medium flows, inlet and outlet facilities ( 3, 4 ) for the heat transfer medium to the heat-exchange plates ( 2 ) and also gaps ( 5 ) between heat-exchange plates ( 2 ) in which the fixed-bed catalyst is present and into which the methanol vapor and the gas stream comprising molecular oxygen are passed, is described.

    53.
    发明专利
    未知

    公开(公告)号:BRPI0412785A

    公开(公告)日:2006-09-26

    申请号:BRPI0412785

    申请日:2004-07-21

    Applicant: BASF AG

    Abstract: The invention relates to a reactor for partial oxidation of a fluid reaction mixture in the presence of a heterogeneous particulate catalyst. Said reactor comprises one or several cuboid heat-transfer sheet modules (1) which are each composed of two or several right-angled heat-transfer sheets (2), arranged parallel to each other such as to form a slit (3) which can be filled with the heterogeneous particulate catalyst and through which the fluid reaction mixture flows, the heat of reaction being absorbed by a heat carrier which flows through the heat-transfer sheets (2) and at least partially evaporates. Said reactor also comprises a mainly cylindrical envelope (4, 15, 16) which depressurizes the heat-transfer sheet modules and fully surrounds said modules, said envelope being composed of a cylinder casing (4) and of caps (15, 16), closing said casing at both ends, the longitudinal axis of which extends parallel to the plane of said heat-transfer sheets (2). Said reactor finally comprises one or several sealing elements (7, 23), arranged so that the fluid reaction mixture flows only through the slit (3), except through the reactor interior spaces, defined by the caps (15, 16).

    PROCEDIMIENTO PARA LA OBTENCION DE FOSGENO.

    公开(公告)号:ES2253661T3

    公开(公告)日:2006-06-01

    申请号:ES03706482

    申请日:2003-02-12

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de fosgeno mediante reacción en fase gaseosa de monóxido de carbono y de cloro en presencia de un catalizador en lecho fijo, en uno o varios reactores (1) de forma cilíndrica, con un haz de tubos de contacto (2) dispuestos paralelamente entre sí, ordenados en la dirección longitudinal del reactor, que están fijados en sus extremos en platos de tubos (3), respectivamente con una caperuza (4) en ambos extremos del reactor (1), así como con chapas de desviación (6) dispuestas perpendicularmente con respecto a la dirección longitudinal del reactor, en cavidades intermedias (5) entre los tubos de contacto (2), que dejan libres, sobre la pared interna del reactor, orificios de paso (7) contrapuestos entre sí de manera alternativa, estando cargados los tubos de contacto (2) con el catalizador en lecho fijo, conduciéndose la mezcla de la reacción en estado gaseoso desde un extremo del reactor por una caperuza (4) a través de los tubos de contacto (2) y descargándosepor el extremo opuesto del reactor a través de una segunda caperuza (4) y conduciéndose a través de la cavidad intermedia (5) alrededor de los tubos de contacto (2) un agente intercambiador de calor líquido, caracterizado porque se dejan libres de tubos el o los reactores (1) en la zona de los orificios de paso (7) para la realización del procedimiento.

    55.
    发明专利
    未知

    公开(公告)号:BRPI0409086A

    公开(公告)日:2006-04-11

    申请号:BRPI0409086

    申请日:2004-04-02

    Applicant: BASF AG

    Abstract: A process for coating internals in a reactor, except for the coating of electrically heatable, at least partly open-cell foams, with a catalytically active material or a precursor thereof, in which an aerosol which contains the catalytically active material or the precursor thereof as a disperse phase is provided and the aerosol is passed through the reactor at a rate in the range from 0.1 to 4 m/s, which is established so that the disperse phase of the aerosol is deposited on the internals in the reactor.

    57.
    发明专利
    未知

    公开(公告)号:PT1401566E

    公开(公告)日:2005-02-28

    申请号:PT02740689

    申请日:2002-06-05

    Applicant: BASF AG

    Abstract: A reactor for testing catalyst systems which has a plurality of catalyst tubes ( 2 ) which are arranged parallel to one another in the interior space of the reactor and whose ends are welded into tube plates and also has caps ( 3 ) at each end of the reactor which each bound a cap space ( 4 ), with a fluid reaction medium ( 5 ) being fed via one cap space ( 4 ) into the catalyst tubes ( 2 ), flowing through the catalyst tubes ( 2 ) and being discharged via the other cap space ( 4 ), and is also provided with a heat exchange medium circuit in which the heat exchange medium ( 6 ) is fed in at one end of the reactor, flows through the intermediate space between the catalyst tubes ( 2 ) and flows out at the other end of the reactor, wherein the catalyst tubes ( 2 ) are arranged in two or more catalyst tube regions ( 7 ) which are thermally separate from one another, is proposed.

    REACTOR FOR PARTIAL OXIDATION WITH HEAT-TRANSFER SHEET MODULES

    公开(公告)号:CA2532646A1

    公开(公告)日:2005-02-03

    申请号:CA2532646

    申请日:2004-07-21

    Applicant: BASF AG

    Abstract: The invention relates to a reactor for partial oxidation of a fluid reaction mixture in the presence of a heterogeneous particulate catalyst. Said reacto r comprises one or several cuboid heat-transfer sheet modules (1) which are ea ch composed of two or several right-angled heat-transfer sheets (2), arranged parallel to each other such as to form a slit (3) which can be filled with t he heterogeneous particulate catalyst and through which the fluid reaction mixture flows, the heat of reaction being absorbed by a heat carrier which flows through the heat-transfer sheets (2) and at least partially evaporates . Said reactor also comprises a mainly cylindrical envelope (4, 15, 16) which depressurizes the heat-transfer sheet modules and fully surrounds said modules, said envelope being composed of a cylinder casing (4) and of caps (15, 16), closing said casing at both ends, the longitudinal axis of which extends parallel to the plane of said heat-transfer sheets (2). Said reactor finally comprises one or several sealing elements (7, 23), arranged so that the fluid reaction mixture flows only through the slit (3), except through t he reactor interior spaces, defined by the caps (15, 16).

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