Chemistry of hydrocarbon compounds – Aromatic compound synthesis – Having alkenyl moiety – e.g. – styrene – etc.
Patent
1988-12-29
1990-04-03
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
Having alkenyl moiety, e.g., styrene, etc.
585441, 585444, 585627, 585629, C07C 532
Patent
active
049142496
ABSTRACT:
Dehydrogenatable hydrocarbons may be subjected to a dehydrogenation reaction in which the hydrocarbons such as ethylbenzene are contacted with a dehydrogenation catalyst comprising a modified iron compound in the presence of steam. The reaction mixture effluent containing unconverted hydrocarbons, dehydrogenatable hydrocarbon, hydrogen and steam is then contacted with an oxidation catalyst in a second oxidation zone whereby hydrogen is selectively oxidized to the substantial exclusion of oxidation of the hydrocarbon. The selective oxidation catalyst which is employed is prepared in a two-step process in which a compound containing a noble metal of Group VIII of the Periodic Table and a compound containing a metal of Group IVA of the Periodic Table is impregnated on a porous inorganic support such as alumina. The impregnated support is then calcined and subjected to a second step impregnation in which the support is impregnated with a solution of a compound containing lithium. Following this the support is then dried and calcined.
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Davis Curtis R.
McBride Thomas K.
Nelson Raymond H.
UOP
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