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