Method for removing phenylacetylene through highly selective hydrogenation in presence of styrene

Method for removing phenylacetylene through highly selective hydrogenation in presence of styrene

  • CN 102,649,662 A
  • Filed: 02/25/2011
  • Published: 08/29/2012
  • Est. Priority Date: 02/25/2011
  • Status: Active Grant
First Claim
Patent Images

1. there is the high method of selecting hydrogenation of phenylacetylene down in a vinylbenzene, is raw material with the hydrocarbon fraction that contains phenylacetylene, and 15~

  • 100 ℃

    of temperature of reaction, weight space velocity is 0.01~

    100 hour -1, hydrogen/phenylacetylene mol ratio is 1~

    30;

    1, reaction pressure is under the condition of-0.08~

    5.0MPa;

    Raw material contacts with metal oxide catalyst;

    Phenylacetylene is hydrogenated and is vinylbenzene in the reaction effluent, and wherein, metal oxide catalyst comprises following component by weight percentage;

    (a) 2~

    50.0% metallic nickel or its oxide compound;

    (b) 0.05~

    10% be selected from least a element or its oxide compound in the rare earth;

    (c) 40~

    88% carrier.

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