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    Heterogeneously catalyzed partial dehydrogenation of hydrocarbon, comprises conducting a reaction gas mixture input stream comprising hydrocarbons, with molecular oxygen and molecular hydrogen through a fixed catalyst bed
    55.
    发明专利
    Heterogeneously catalyzed partial dehydrogenation of hydrocarbon, comprises conducting a reaction gas mixture input stream comprising hydrocarbons, with molecular oxygen and molecular hydrogen through a fixed catalyst bed 未知

    公开(公告)号：DE102006017623A1

    公开(公告)日：2007-10-18

    申请号：DE102006017623

    申请日：2006-04-12

    Applicant: BASF AG

    Inventor： HECHLER CLAUS ,  RUPPEL WILHELM ,  GERLINGER WOLFGANG ,  SCHNEIDER WOLFGANG ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07B35/04 ,  C07B41/00 ,  C07C5/32 ,  C07C5/333 ,  C07C11/06 ,  C07C45/33 ,  C07C47/22 ,  C07C51/215 ,  C07C53/08 ,  C07C57/05

    Abstract: Process for heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, comprises conducting a reaction gas mixture input stream comprising hydrocarbons, with molecular oxygen and molecular hydrogen through a fixed catalyst bed; filling inert shaped bodies and then catalyst shaped body in the flow direction of input stream; conditioning the input stream with an activation energy in its inlet area for the combustion reaction of molecular hydrogen with molecular oxygen; and dehydrogenating at least a partial quantity of hydrocarbon. Process for heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, comprises conducting a reaction gas mixture input stream comprising a hydrocarbon to be dehydrogenated, with molecular oxygen and molecular hydrogen through a fixed catalyst bed, which is disposed in a shaft with predetermined cross section; filling inert shaped bodies and then catalyst shaped body in the flow direction of input stream; conditioning the input stream with an activation energy in its inlet area for the combustion reaction of molecular hydrogen with molecular oxygen to water and/or combustion reaction of hydrocarbon with molecular oxygen to carbon monoxide and water; dehydrogenating at least a partial quantity of hydrocarbon, by which the reaction gas mixture input stream is generated inside the shaft; dosing the molecular hydrogen with a volume flow (V1) and an input stream (I) containing at least one dehydrating hydrocarbon on the fixed catalyst bed, before the catalyst bed is dosed with input stream (II) containing molecular oxygen with a total volume flow (V2), where the input stream (II) is dosed in large number through outlet openings (A) present in the flow direction of the input stream (I), in such a manner that, (a) the direction of the majority (M) of input stream (II) from all the outlet openings (in the absence of input stream (I)) exhibits an angle of 90+-60[deg]; (b) the distance (D) of the majority of all outlet openings from the fixed catalyst bed, in relation to the flow speed (W) of the input stream (I) in the shaft, is = the induction time (J) of the reaction gas input mixture multiplied with 2.W; (c) by a projection of the focal points of a majority of all outlet openings in the flow stream direction of the input gas stream (I) in the projection level vertical to the flow stream direction of the input gas stream (I), within the projection level for at least 75% of the projection surfaces, which are held by the input gas stream (I), the number (ZA) amounts to >= 10 in any considered surface m 2> in which one finds outlet opening focal points; (d) the number (ZA) amounts to focal points of the outlet opening, from which the number of emerging individual input stream (II) does not deviate by more than 50% of its average; (e) within the number (ZA) of all outlet openings, a distance (D) between one outlet opening focal point and the next outlet opening focal point, is not more than the equation 2.(lm 2>/ZA) 1> > 2>; and (f) the ratio of V1:V2 amounts to >= 8.

    56.
    发明专利
    未知

    公开(公告)号：BRPI0417856A

    公开(公告)日：2007-04-27

    申请号：BRPI0417856

    申请日：2004-12-21

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  HECHLER CLAUS ,  LOEWEN DIETMAR

    IPC: B01J8/02 ,  B01J8/00 ,  B01J19/00 ,  B01J19/24 ,  G05D23/00

    Abstract: A process is proposed for monitoring, controlling and/or regulating reactions of a fluid reaction mixture in the presence of a heterogeneous particulate catalyst, in a reactor having two or more thermoplates ( 1 ) arranged vertically and parallel to each other while in each case leaving a gap ( 2 ), the heterogeneous particulate catalyst being installed in the gaps ( 2 ) and the fluid reaction mixture being passed through the gaps ( 2 ), which comprises selecting as a regulation signal the temperature which is determined in one or more gaps ( 2 ), at two or more measurement points which are distributed over the height of each gap ( 2 ).

    REACTOR FOR PARTIAL OXIDATION WITH HEAT-TRANSFER SHEET MODULES
    57.
    发明专利
    REACTOR FOR PARTIAL OXIDATION WITH HEAT-TRANSFER SHEET MODULES 未知

    公开(公告)号：ZA200600576B

    公开(公告)日：2007-01-31

    申请号：ZA200600576

    申请日：2006-01-20

    Applicant: BASF AG

    Inventor： OLBERT GERHARD ,  HECHLER CLAUS

    IPC: B01J20060101 ,  B01J19/24 ,  B01J19/32 ,  C07C20060101 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  F28D9/00 ,  F28F9/00

    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).

    Preparing final products by partial oxidation of propylene, useful as intermediate for polymer, comprises subjecting propane to dehydrogenation, separating and subjecting the gas mixture in heterogeneous catalyzed gasphase-partial oxidation
    58.
    发明专利
    Preparing final products by partial oxidation of propylene, useful as intermediate for polymer, comprises subjecting propane to dehydrogenation, separating and subjecting the gas mixture in heterogeneous catalyzed gasphase-partial oxidation 未知

    公开(公告)号：DE102005022798A1

    公开(公告)日：2006-11-16

    申请号：DE102005022798

    申请日：2005-05-12

    Applicant: BASF AG

    Inventor： DIEFENBACHER ARMIN ,  HECHLER CLAUS ,  ADAMI CHRISTOPH ,  DIETERLE MARTIN

    IPC: C07C57/055 ,  B01J23/84 ,  C07C5/333 ,  C07C45/35 ,  C07C45/78 ,  C07C47/22 ,  C07C57/07 ,  C07C209/60 ,  C07C209/82 ,  C08F20/06

    Abstract: Preparation of at least one final product by partial oxidation and/or ammoxidation of propylene, comprises subjecting a purified propane to dehydrogenation; separating optionally the gas mixture containing propane and propylene, and simultaneously producing a propane and propylene containing gas mixture (II); subjecting the gas mixtures in heterogeneous catalyzed gasphase-partial oxidation, where a gas mixture (III) containing at least one final product is obtained; separating the gas mixture (III) and leading back at least propane in the remainder gas in the first reaction step. Preparation of at least one final product by partial oxidation and/or ammoxidation of propylene, comprises subjecting a propane, which is first purified in a first reaction step in the presence and/or absence of oxygen, to dehydrogenation comprising homogeneous dehydrogenation, heterogeneously catalyzed dehydration, homogeneous oxide-hydrogenation and heterogeneously catalyzed oxide-hydrogenation, where the non-reacted propane and formed propylene containing gas mixture (I) is obtained; separating optionally the total quantity or partial quantity of the gas mixture containing propane and propylene of different components and/or changing into other compounds, and simultaneously producing a propane and propylene containing gas mixture (II); subjecting the gas mixture (I) or (II), or a gas mixture, which is a mixture of formed gas mixture (II) and remained gas mixture (I) in heterogeneous catalyzed gasphase-partialoxidation and/or partial gasphase-ammoxidation of the gas mixture (I) and/or (II), where a gas mixture (III) containing at least one final product is obtained; and separating the gas mixture (III) and leading back at least propane in the remainder gas in the first reaction step, where the propane is pre-purified from raw propane, which contains >=90 wt.% of propane, =99 wt.% of propane and propylene, >=100 wt.% of 2C-hydrocarbon and >=100 wt.% of 4C-hydrocarbon, with the standard, that the raw propane leads to rectification column and takes place over the supply place of the purified propane, where the concentration of 2C-hydrocarbon of propane contained in the purified propane amounts to not more than 80 wt.% based on the content of raw propane and the concentration of 4C-hydrocarbon of propane contained in the purified propane amounts to a maximum of 50% based on the content of the raw propane.

    59.
    发明专利
    未知

    公开(公告)号：DE102004061770A1

    公开(公告)日：2006-07-06

    申请号：DE102004061770

    申请日：2004-12-22

    Applicant: BASF AG

    Inventor： HECHLER CLAUS ,  OLBERT GERHARD

    IPC: C07D307/89

    Abstract: Processes comprising: (a) providing a reactant comprising a component selected from the group consisting of o-xylene, naphthalene and mixtures thereof, and a gas comprising oxygen; (b) reacting the reactant and the gas in a reaction system, in the presence of a catalyst, to form phthalic anhydride; wherein the reaction system comprises: (i) at least two reaction zones, each reaction zone cooled with a coolant; and (ii) an intermediate cooling zone disposed between a first of the at least two reaction zones and a second of the at least two reaction zones; and wherein the coolant entering the first of the at least two reaction zones has a temperature which is more than 20° C. higher than a temperature of the coolant entering the second of the at leas two reaction zones.

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