COMPOSICIONES QUE COMPRENDEN NIQUEL Y SU USO COMO CATALIZADORES EN LA DESHIDROGENACION OXIDANXTE DE ALCANOS.

    公开(公告)号:MXPA01008496A

    公开(公告)日:2003-06-06

    申请号:MXPA01008496

    申请日:2000-02-22

    Inventor: LIU YUMIN

    Abstract: Se divulgan catalizadores y metodos para la oxideshidrogenacion de alcanos. Los catalizadores de la invencion comprenden generalmente (i) niquel o bien un compuesto que contiene niquel y (ii) por lo menos uno o varios de los siguientes: titanio (Ti), tantalio (Ta), niobio (Nb), cobalto (Co), hafnio (Hf), tungsteno (W), itrio (Y), zinc (Zn), zirconio (Zr), o aluminio (Al) o bien un compuesto que contiene uno o varios de estos elementos. En modalidades preferidas, el catalizador es un catalizador soportado, el alcano se selecciona dentro del grupo que consiste de: etano, propano, isopropano, isobutano, n-butano y cloruro de etilo, se alimenta conjuntamente oxigeno molecular con el alcano a una zona de reaccion mantenida a una temperatura que se ubica dentro de un rango de aproximadamente 250oC a aproximadamente 350oC, y el etano es deshidrogenado de manera oxidante para formar el alqueno correspondiente con una conversion de alcano de por lo menos aproximadamente 10% y una selectividad de alqueno de por lo menos aproximadamente 70%.

    Compositions comprising nickel and their use as catalyst in oxidative dehydrogenation of alkanes

    公开(公告)号:AU3601900A

    公开(公告)日:2000-09-04

    申请号:AU3601900

    申请日:2000-02-22

    Inventor: LIU YUMIN

    Abstract: Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), hafnium (Hf), tungsten (W), yttrium (Y), zinc (Zn), zirconium (Zr), or aluminum (Al), or a compound containing one or more of such element(s). In preferred embodiments, the catalyst is a supported catalyst, the alkane is selected from the group consisting of ethane, propane, isobutane, n-butane and ethyl chloride, molecular oxygen is co-fed with the alkane to a reaction zone maintained at a temperature ranging from about 250° C. to about 350° C., and the ethane is oxidatively dehydrogenated to form the corresponding alkene with an alkane conversion of at least about 10% and an alkene selectivity of at least about 70%.

    COMPOSITIONS COMPRISING NICKEL AND THEIR USE AS CATALYST IN OXIDATIVE DEHYDROGENATION OF ALKANES

    公开(公告)号:CA2363035C

    公开(公告)日:2007-09-04

    申请号:CA2363035

    申请日:2000-02-22

    Inventor: LIU YUMIN

    Abstract: Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel-containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), cobalt (Co), hafnium (Hf), tungsten (W), yttrium (Y), zinc (Zn), zirconium (Zr), or aluminum (Al), or a compound containing one or more of such element(s). In preferred embodiments, the catalyst is a supported catalyst, the alkane is selected fr om the group consisting of ethane, propane, isopropane, isobutane, n-butane and ethyl chloride, molecular oxygen is co-fed with the alkane to a reaction zone maintained at a temperature ranging from about 250 .degree.C to about 350 .degree.C, and the ethane is oxidatively dehydrogenated to form the corresponding the alkene with an alkane conversio n of at least about 10 % and an alkene selectivity of at least about 70 %.

    COMPOSITIONS COMPRISING NICKEL AND THEIR USE AS CATALYST IN OXIDATIVE DEHYDROGENATION OF ALKANES

    公开(公告)号:CA2363035A1

    公开(公告)日:2000-08-24

    申请号:CA2363035

    申请日:2000-02-22

    Inventor: LIU YUMIN

    Abstract: Catalysts and methods for alkane oxydehydrogenation are disclosed. The catalysts of the invention generally comprise (i) nickel or a nickel- containing compound and (ii) at least one or more of titanium (Ti), tantalum (Ta), niobium (Nb), cobalt (Co), hafnium (Hf), tungsten (W), yttrium (Y), zi nc (Zn), zirconium (Zr), or aluminum (Al), or a compound containing one or more of such element(s). In preferred embodiments, the catalyst is a supported catalyst, the alkane is selected from the group consisting of ethane, propan e, isopropane, isobutane, n-butane and ethyl chloride, molecular oxygen is co-f ed with the alkane to a reaction zone maintained at a temperature ranging from about 250 ~C to about 350 ~C, and the ethane is oxidatively dehydrogenated t o form the corresponding the alkene with an alkane conversion of at least abou t 10 % and an alkene selectivity of at least about 70 %.

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