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    Continuous heterogeneously catalyzed partial dehydrogenation of hydrocarbon involves dehydrogenation through catalyst bed disposed in reaction chamber and with generation of product gas
    36.
    发明专利
    Continuous heterogeneously catalyzed partial dehydrogenation of hydrocarbon involves dehydrogenation through catalyst bed disposed in reaction chamber and with generation of product gas 未知

    公开(公告)号：DE102006029790A1

    公开(公告)日：2008-01-03

    申请号：DE102006029790

    申请日：2006-06-27

    Applicant: BASF AG

    Inventor： HECHLER CLAUS ,  RUPPEL WILHELM ,  SCHINDLER GOETZ-PETER ,  KLANNER CATHARINA ,  BASSLER HANS-JUERGEN ,  DIETERLE MARTIN ,  KLAPPERT KARL-HEINRICH ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C5/333 ,  B01J19/02 ,  C07C7/09 ,  C07C7/12 ,  C07C11/00 ,  C07C45/34 ,  C07C47/22 ,  C07C57/05 ,  C07C57/07 ,  C08F20/06 ,  C08F20/20 ,  C22C38/40

    Abstract: Continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated in the gas phase involves at least one catalyst bed disposed in the reaction chamber and with generation of a product gas comprising the at least one dehydrogenated hydrocarbon, unconverted hydrocarbon to be dehydrogenated and molecular hydrogen and/or steam, is dehydrogenated partially in an oxidative or non-oxidative manner to at least one dehydrogenated hydrocarbon, and at least one product gas stream is withdrawn continuously from the reaction chamber. Process for continuous heterogeneously catalyzed partial dehydrogenation of at least one hydrocarbon to be dehydrogenated in the gas phase involves a reaction chamber enclosed by a shell which is in contact with the reaction chamber and has at least one first orifice for feeding at least one starting gas stream into the reaction chamber and at least one second orifice for withdrawing at least one product gas stream from the reaction chamber, at least one starting gas stream comprising at least one hydrocarbon to be dehydrogenated is fed continuously in the reaction chamber. The at least one hydrocarbon to be dehydrogenated is conducted through at least one catalyst bed disposed in the reaction chamber and with generation of a product gas comprising the at least one dehydrogenated hydrocarbon, unconverted hydrocarbon to be dehydrogenated and molecular hydrogen and/or steam, is dehydrogenated partially in an oxidative or non-oxidative manner to at least one dehydrogenated hydrocarbon, and at least one product gas stream is withdrawn continuously from the reaction chamber. The shell is manufactured from a composite material which, on its side B in contact with the reaction chamber, consists of steel B comprising (wt.%): chromium (18-30), nickel (9-37), silicon (1-4), aluminum (>=0-4), nitrogen (>=0-0.3), carbon (>=0-0.15), manganese (>=0-4), phosphorus (>=0-0.05), sulfur (>=0-0.05), and at least one rare earth metal (>=0-0.1), and iron and impurities resulting from production. The steel B, on its side A facing away from the reaction chamber, is plated either directly or via an intermediate layer of copper, and/or nickel, onto steel A comprising (wt.%): chromium (15-20), nickel (6-18), silicon (>=0-0.8), aluminum (>=0-0.8), nitrogen (>=0-0.3), carbon (>=0-0.15), molybdenum (>=0-4), manganese (>=0-2), titanium (>=0-0.8), niobium (>=0-1.2), vanadium (>=0-0.9), boron (>=0-0.1), phosphorus (>=0-0.05), sulfur (>=0-0.05), iron and impurities resulting from production, or a composition comprising (wt.%) Cr (19-23), Ni (30-35), Co (>=0-1), Si (>=0-1), Al (0.15-0.7), C (>=0-0.12), Mn (>=0-2), Cu (>=0-0.75), Ti (0.15-0.7), Nb (>=0-0.1), P (>=0-0.05), S (>=0-0.05) and iron and impurities resulting from production. An independent claim is included for a shell encloses an interior and has at least one first orifice for feeding at least one gas stream into the interior and at least one second orifice for withdrawing a gas stream fed to the interior beforehand via the at least one first orifice O1 from the interior. The shell is manufactured from a composite material which, on its side B in contact with the reaction chamber, consists of steel B on its side A facing away from the reaction chamber is plated either directly or via an intermediate layer of copper and/or nickel onto steel A.

    Heterogeneously catalyzed partial dehydrogenation of hydrocarbon, comprises conducting feed stream of gaseous mixture comprising hydrocarbons through a fixed catalyst bed and filling of catalyst body along the flow direction of stream
    37.
    发明专利
    Heterogeneously catalyzed partial dehydrogenation of hydrocarbon, comprises conducting feed stream of gaseous mixture comprising hydrocarbons through a fixed catalyst bed and filling of catalyst body along the flow direction of stream 未知

    公开(公告)号：DE102006015235A1

    公开(公告)日：2007-10-04

    申请号：DE102006015235

    申请日：2006-03-30

    Applicant: BASF AG

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

    IPC: C07C5/333 ,  C07C11/00 ,  C07C11/06 ,  C07C45/35 ,  C07C57/05 ,  C07C57/07 ,  C08F20/06

    Abstract: Process for heterogeneously catalyzed partial dehydrogenation of a hydrocarbon, comprises conducting a feed stream of a gaseous reaction mixture comprising hydrocarbons, oxygen and hydrogen through a fixed catalyst bed; filling inert bodies and then catalyst body along the flow direction of the feed stream, under the condition that it needs lesser activation energy for the combustion reaction of the hydrocarbon with the molecular oxygen to form carbon dioxide and water; and dehydrogenating at least a partial quantity of hydrocarbon. Procedure for a heterogeneously-catalyzed partial dehydrogenation of at least a hydrocarbon, comprises: conducting a feed stream of a gaseous reaction mixture comprising oxygen, hydrogen and at least one hydrocarbon to be dehydrogenated, through a fixed bed catalyst, which is present in a column with a given cross-section; filling of inert bodies and then catalytically active filling with at least a catalyst body along the flow direction of the feed stream of the gaseous reaction mixture, under the condition that the filling is designed in such a manner that it at least in the inlet area along the flow direction of the feed stream of the gaseous reaction mixture needs lesser activation energy for the combustion reaction of molecular hydrogen with molecular oxygen to form water and/or for the combustion reaction of the hydrocarbon contained in the feed stream of the gaseous reaction mixture with the molecular oxygen to form carbon dioxide and water than that for the dehydrogenation of the at least one hydrocarbon to form the at least one dehydrogenated hydrocarbon; dehydrogenating at least a partial quantity of hydrocarbon, by which the feed stream of the gaseous reaction mixture is produced in the column; metering a gaseous feed stream I, which flows through the column with a volumetric flow rate (V1) on to the fixed bed catalyst and which contains molecular hydrogen and the at least one hydrocarbon, a feed gas II containing molecular oxygen and with a volumetric flow rate V2, before the catalyst bed, where the feed gas II is metered in such a manner in the form of a multitude of feed gas streams II that flow out of discharge openings A of a duct system that are present along the flow direction of the gaseous feed stream I before the fixed catalyst bed that (a) the directions of the multiple M of all the feed gas streams II withdrawing from the discharge openings A in the fictitious absence of the feed gas stream I include an angle an angle alpha of 90+-60[deg] with the flow direction of the feed stream I; (b) the distance D of the multiple M of all the discharge openings A of the catalyst bed, related to the flow velocity W of the feed gas stream I in the column is lower or the same as the induction time J of the gaseous feed stream of the reaction mixture multiplied by 2W; (c) with a projection of the centers of gravity of the multiple M of all the discharge openings A along the flow direction of the feed gas stream I in the projection plane E perpendicular to the flow direction of the feed gas stream I within the projection plane E for at least 75% of the projection surface traced out by the feed gas stream I, the number ZA of the center of gravities that are present in any surface area m 2> amounts to >= 10; (d) the individual feed gas streams II that withdraw from the discharge openings A that belong to the number ZA of the center of gravities of the discharge openings A deviate by not more than 50% from their numerical average; (e) within the number ZA of discharge openings, the distance d from the center of gravity of a discharge opening to that of an adjacent discharge opening amounts to not more than 2.(lm 2>/ZA) 1> > 2>, and (f) the ratio V1: V2 >= 8.

    40.
    发明专利
    未知

    公开(公告)号：ES2167027T3

    公开(公告)日：2002-05-01

    申请号：ES97953760

    申请日：1997-12-09

    Applicant: BASF AG

    Inventor： FETZER THOMAS ,  DEMUTH DIRK ,  RUTTER HEINZ ,  MENIG HELMUTH ,  RESCH PETER ,  RUPPEL WILHELM

    IPC: B01J23/72 ,  C07C45/38 ,  C07C45/39 ,  C07C47/127

    Abstract: PCT No. PCT/EP97/06856 Sec. 371 Date Jun. 16, 1999 Sec. 102(e) Date Jun. 16, 1999 PCT Filed Dec. 23, 1997 PCT Pub. No. WO98/28251 PCT Pub. Date Jul. 2, 1998In a process for preparing carbonyl compounds of the formula where R1 is a hydrogen atom or an alkyl radical having from 1 to 3 carbon atoms, R2 is a hydrogen atom or a radical of the formula where R3 is a hydrogen atom or together with R4 is an oxygen atom, R4 is the radical OR6 or together with R3 is an oxygen atom, R5 is a hydrogen atom, an alkyl radical having from 1 to 8 carbon atoms or a cyclohexyl or cyclopentyl radical and R6 is an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CHO or -CH2-CH2-O-CH2-CHO, by gas-phase oxidation of methanol or alcohols of the formula where R1 and R5 are as defined above and R7 is a hydrogen atom or a radical OR8 and R8 is a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms, a cyclohexyl or cyclopentyl radical or a radical for the formula -CH2-CH2-OH or -CH2-CH2-O-CH2-CH2-OH, using an oxygen-containing gas in the presence of copper- and/or silver-containing catalysts and an amount of a phosphorus compound which is volatile under the reaction conditions which is such that the amount of phosphorus (calculated as P) is up to 20 ppm, based on the weight of alcohol used, the phosphorus is introduced within the catalyst bed.

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