Počet záznamů: 1  

Hydrogenation and Hydrogenolysis of Acetophenone

  1. 1.
    0181758 - UFCH-W 20030197 RIV CZ eng J - Článek v odborném periodiku
    Bejblová, M. - Zámostný, P. - Červený, L. - Čejka, Jiří
    Hydrogenation and Hydrogenolysis of Acetophenone.
    Collection of Czechoslovak Chemical Communications. Roč. 68, č. 10 (2003), s. 1969-1984. ISSN 0010-0765
    Grant CEP: GA ČR GA203/03/0804
    Výzkumný záměr: CEZ:AV0Z4040901
    Klíčová slova: hydrogenation * acetophenone * zeolites
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 1.041, rok: 2003

    Catalytic hydrogenation and hydrogenolysis of acetophenone was investigated on supported palladium catalysts in liquid phase at temperatures 30 ů 130 .DEG.C and pressures 1 ů 10 MPa. A number of supports like active carbon, alumina and zeolites Beta and ZSM-5 were employed. The effects of solvent and support on the reaction mechanism of acetophenone transformation were studied. Catalysts with acid zeolite support showed a very high activity in transformation of acetophenone to ethylbenzene. Based on a kinetic model, the reaction rates of acetophenone transformation to ethylbenzene on Pd/C and Pd/Al2O3 catalysts were discussed. The kinetic model confirmed that the transformation of acetophenone to ethylbenzene proceeds primarily via a hydrogenation-dehydration mechanism and the effect of the direct hydrogenolysis of the C=O bond of acetophenone is insignificant.
    Trvalý link: http://hdl.handle.net/11104/0078280

     
     

Počet záznamů: 1  

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