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    • 8. 发明授权
    • Catalyst for dehydrogenation of paraffins
    • 石蜡脱氢催化剂
    • US5476982A
    • 1995-12-19
    • US259717
    • 1994-06-14
    • John L. RobbinsElise Marucchi-SoosJack W. JohnsonJohn F. Brody
    • John L. RobbinsElise Marucchi-SoosJack W. JohnsonJohn F. Brody
    • B01J23/60B01J23/62B01J29/04C07C5/32C07C5/333
    • B01J29/049B01J23/60B01J23/62C07C5/325C07C5/3337
    • The present invention is directed to a novel catalyst composition and its use in the dehydrogenation of paraffins to olefins. The catalyst comprises an alloy of a Group VIII noble metal and a metal selected from the group consisting of zinc and gallium on a support selected from the group consisting of silica, zinc oxide modified silica and zinc oxide modified silica-pillared clays when said alloy is a zinc alloy, and silica, gallium oxide modified silica and gallium oxide modified silica-pillared clays when said alloy is a gallium alloy. The instant catalyst is an active and selective catalyst for the catalytic dehydrogenation of paraffins to olefins, especially gaseous paraffins, having the added benefit of retaining high activity and selectivity even following repeated regeneration by calcination in oxygen containing gas at temperatures of 450.degree. C. to 650.degree. C., preferably 450.degree. C. to 500.degree. C.
    • 本发明涉及新型催化剂组合物及其在链烷烃脱氢成烯烃中的应用。 所述催化剂包含由选自二氧化硅,氧化锌改性二氧化硅和氧化锌改性二氧化硅 - 柱状粘土的载体上的第八族贵金属和选自锌和镓的金属的合金,当所述合金为 锌合金,二氧化硅,氧化镓改性二氧化硅和氧化镓改性二氧化硅柱状粘土。 本催化剂是用于将链烷烃催化脱氢成烯烃,特别是气态烷烃的活性和选择性催化剂,具有保持高活性和选择性的附加益处,即使在含氧气体中通过在450℃至450℃的温度下煅烧反复再生, 650℃,优选450℃至500℃