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    41.
    发明专利
    未知

    公开(公告)号：DE50004079D1

    公开(公告)日：2003-11-20

    申请号：DE50004079

    申请日：2000-03-15

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  CORR FRANZ ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMON ULRICH

    IPC: B01J8/06 ,  B01J19/00 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

    Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.

    REACTOR AND METHOD FOR PRODUCING PHOSGENE
    43.
    发明专利
    REACTOR AND METHOD FOR PRODUCING PHOSGENE 未知

    公开(公告)号：AU2003208834A1

    公开(公告)日：2003-09-09

    申请号：AU2003208834

    申请日：2003-02-12

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  MATTKE TORSTEN ,  VANDERWAEREN LUC ,  NEVEJANS FILIP ,  HAMMENECKER JAN

    IPC: B01J8/00 ,  B01J8/06 ,  B01J12/00 ,  B01J19/00 ,  C01B32/80 ,  C01B31/28

    Abstract: A reactor (1) for preparing phosgene by gas-phase reaction of carbon monoxide and chlorine in the presence of a solid catalyst, which reactor has a bundle of parallel catalyst tubes (2) aligned in the longitudinal direction of the reactor whose ends are fixed in tube plates (3) and have a cap (4) at each end of the reactor (1), and has deflection plates (6) which are aligned perpendicular to the longitudinal direction of the reactor in the intermediate space (5) between the catalyst tubes (2) and leave free passages (7) located alternately opposite one another on the interior wall of the reactor, and in which the catalyst tubes (2) are charged with the solid catalyst, the gaseous reaction mixture is passed from one end of the reactor via one cap (4) through the catalyst tubes (2) and is taken off from the opposite end of the reactor (1) via the second cap (4) and a liquid heat transfer medium is passed through the intermediate space (5) around the catalyst tubes (2), where the reactor (1) has no tubes in the region of the passages (7), is proposed.

    Exothermic reactor has coolant discharge sub-divided into a multitude of channels where intensive mixing takes place with coolant in an outer ring passage
    44.
    发明专利
    Exothermic reactor has coolant discharge sub-divided into a multitude of channels where intensive mixing takes place with coolant in an outer ring passage 未知

    公开(公告)号：DE10137768A1

    公开(公告)日：2002-09-26

    申请号：DE10137768

    申请日：2001-08-02

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  CORR FRANZ

    IPC: B01J8/06

    Abstract: An exothermic reactor has heat exchange pipes which, on leaving the reactor, sub-divide into a multitude of channels. These channels are joined immediately by incoming passages bearing heat medium from an external heat exchange unit. A reactor (1) with a heat exchanger circuit consisting of a battery of heat medium contact pipes (2) surrounded by reactants. The reactor has an inlet ring pipe (5) at one end and an outlet ring pipe (4) at the other, with mantle apertures (6, 7) for the incoming and outgoing heat exchange medium (3) that is circulated by pump to the external heat exchanger. Immediately on entering the outgoing ring pipe (4), the heat medium is sub-divided (3a, 3b) and mixed intensively with heat-exchange medium from the external heat exchanger. The reactor incorporates a number of reverse-flow screens leaving free passages alternating between the reactor center and peripheral zones. The reactor has approximately. 10,000 to 50,000 contact tubes (82)

    Countercurrent reactor, for use in oxidative preparation of (meth)acrylic acid, comprising contact tube bundle and having system for improving flow of circulating heat exchange medium
    45.
    发明专利
    Countercurrent reactor, for use in oxidative preparation of (meth)acrylic acid, comprising contact tube bundle and having system for improving flow of circulating heat exchange medium 未知

    公开(公告)号：DE10134026A1

    公开(公告)日：2002-01-24

    申请号：DE10134026

    申请日：2001-07-12

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  CORR FRANZ

    IPC: B01J8/06 ,  C07C51/215 ,  C07C51/25 ,  C07C57/05 ,  F28F9/22

    Abstract: A reactor includes a bundle of contact tubes, through which a reaction mixture is passed from top to bottom while a heat exchange medium (HEM) is circulated through the space surrounding the tubes. Part of the HEM stream in the lower half of the reactor is fed directly into the intermediate space in the uppermost part of the reactor via a central conduit which widens to a funnel. A reactor includes a bundle of contact tubes, through which a reaction mixture is passed from top to bottom while a heat exchange medium (HEM) is circulated through the space surrounding the tubes. Ring lines are provided at both ends of the reactor. HEM is supplied and removed via jacket openings using pump(s), and HEM (or its partial stream) is optionally passed through external heat exchanger(s). HEM is supplied to the lower ring line and recycled via the upper ring line. Diverting plates are fitted alternately at the middle and sides of the reactor. Part of the HEM stream in the lower half of the reactor is fed directly into the intermediate space in the uppermost part of the reactor via a central conduit which widens to a funnel. Independent claims are also included for three alternative types of reactors: (a) A reactor as previously described where openings are provided in the upper ring line to draw off the HEM stream via the uppermost region of the contact tubes; (b) A reactor as previously described where one or more annular intermediate walls, with openings for HEM in the uppermost region of the contact tube bundle, are provided in the region above the uppermost diverting plate; or (c) A reactor as previously described where the contact tube bundle is formed with one or more tube-free hollow cylindrical intermediate spaces and a static mixer is optionally provided in the intermediate spaces and/or in the tube-free internal space of the reactor.

    Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions
    46.
    发明专利
    Multi-tube fixed-bed reactor, especially for catalytic gas phase reactions 未知

    公开(公告)号：MXPA01009012A

    公开(公告)日：2002-01-01

    申请号：MXPA01009012

    申请日：2001-09-06

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  CORR FRANZ ,  REUTER PETER ,  WAMBACH LUDWIG ,  HAMMON ULRICH

    IPC: B01J8/06 ,  B01J19/00 ,  B01J19/24 ,  C07C45/35 ,  C07C45/38 ,  H01Q21/08

    Abstract: A multitube fixed bed reactor and the use of such a reactor for carrying out catalytic gas-phase reactions, in particular for carrying out exothermic and endothermic catalytic gas-phase reactions such as the preparation of phthalic anhydride (PA), acrylic acid, methacrylic acid (MAA), acrolein, maleic anhydride (MA), glyoxal, phosgene, hydrocyanic acid or vinyl formamide (VFA). In a relatively large multitube reactor in which a large amount of heat of reaction is generated owing to the numerous catalyst tubes ( 17 ) and has to be removed, it is proposed that the ratio of tube spacing t to external tube diameter d a be made dependent on the reactor diameter or on the external tube bundle diameter d RBa . At an external diameter of the catalyst tube bundle ( 18 ) of more than 4 meters, a ratio of tube spacing d to external tube diameter d a of at least 1.3 is preferred.

    PUMP FOR TRANSPORTING A HEAT EXCHANGE MEDIUM FOR A MULTI-TUBE REACTOR
    50.
    发明专利
    PUMP FOR TRANSPORTING A HEAT EXCHANGE MEDIUM FOR A MULTI-TUBE REACTOR 未知

    公开(公告)号：CA2448082C

    公开(公告)日：2010-10-05

    申请号：CA2448082

    申请日：2002-06-05

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  MATTKE TORSTEN ,  KUMMER MATTHIAS ,  RUEHL THOMAS ,  ROSOWSKI FRANK

    IPC: F04D7/06 ,  F04D29/40 ,  F04D3/00 ,  F04D13/00 ,  F04D29/52

    Abstract: The invention relates to a pump (1) comprising a pump feed tube (13) for transporting a heat exchange medium (6) for a reactor containing a bundle of catalyst tubes (2). The pump (1) has a housing (14) that surrounds the pump feed tube (13) and comprises an opening (15) in the lower part of the housing (14), which allows the heat exchange medium (6) that is drawn from the lower section of the reactor by the pump (1) to flow into the housing (14). The medium flows upwards in the section lying between the internal wall of the housing (14) and the external wall of the pump feed tube (13), optionally over a heat exchanger (18) and into the interior of the pump feed tube (13) via an opening (16) in the upper section of said pump feed tube (13). The medium then flows through the pump feed tube from top to bottom, into the reactor via an opening (17) in the lower section of said tube (13) and into the upper section of the intermediate chamber between the catalyst tubes (2).

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