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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
    21.
    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.

    METHOD FOR PRODUCING MALEIC ACID ANHYDRIDE
    29.
    发明专利
    METHOD FOR PRODUCING MALEIC ACID ANHYDRIDE 未知

    公开(公告)号：CA2402420A1

    公开(公告)日：2001-09-20

    申请号：CA2402420

    申请日：2001-03-06

    Applicant: BASF AG

    Inventor： STORCK SEBASTIAN ,  TENTEN ANDREAS ,  RUPPEL WILHELM ,  WEIGUNY JENS

    IPC: C07D307/60 ,  B01J27/28 ,  B01J38/04 ,  C07B61/00 ,  C07C51/215

    Abstract: In a process for preparing maleic anhydride by heterogeneously catalyzed gas-phase oxidation of hydrocarbons having at least four carbon atoms using oxygen-containing gases in the presence of a volatile phosphorus compound over a catalyst comprising vanadium, phosphorus and oxygen in a shell-and-tube reactor unit having at least two successive cooled reaction zones, the temperature of the first reaction zone is from 350 to 450° C. and the temperature of the second and further reaction zones is from 350 to 480° C. and the temperature difference between the hottest reaction zone and the coolest reaction zone is at least 2° C.

    CONTINUOUS INDUSTRIAL PRODUCTION OF UNSATURATED ALIPHATIC ALDEHYDES IN A TUBE BUNDLE REACTOR
    30.
    发明专利
    CONTINUOUS INDUSTRIAL PRODUCTION OF UNSATURATED ALIPHATIC ALDEHYDES IN A TUBE BUNDLE REACTOR 未知

    公开(公告)号：CA2236614A1

    公开(公告)日：1998-11-28

    申请号：CA2236614

    申请日：1998-05-27

    Applicant: BASF AG

    Inventor： FUCHS HARTWIG ,  AQUILA WERNER ,  W RZ OTTO ,  RUPPEL WILHELM ,  HALBRITTER KLAUS

    IPC: B01J23/52 ,  B01J8/02 ,  B01J8/08 ,  C07B61/00 ,  C07C45/38 ,  C07C45/67 ,  C07C47/21 ,  C07C47/22

    Abstract: A process for continuous industrial production of unsaturated aliphatic aldehydes having a boiling range from 95 to 136.degree.C by oxidative dehydrogenation of the corresponding alcohols with an oxygen-comprising gas over a supported catalyst consisting of copper, silver and/or gold on an inert support in a tube bundle reactor, rapid cooling of the reaction gases and removal of the aldehydes from the resulting condensate with recycling of the unconverted alcohols comprises a) vaporizing the alcohol, b) admixing the alcohol vapor with an oxygen-comprising gas, c) initially passing the resulting oxygen-comprising alcohol vapor at above the dew point of the alcohol but below the commencement temperature of the reaction through a layer of one of the abovementioned supported catalysts which is at least 0.5 cm in thickness and only then d) reacting the oxygen-comprising alcohol vapor at from 300 to 600.degree.C in a sufficient number, for the desired capacity, of parallel reaction tubes surrounded by a fluidic heat transfer medium, packed with the supported catalyst and having an internal diameter D of from about 0.5 to 3 cm and a length of at least 5 cm, to form the corresponding aldehyde.

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