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AssigneesEnichem S.p.A., Enitecnologie S.p.A.
InventorsPatrizia Ingallina, Luciano Carluccio, Giuseppe Bellussi, Gastone Del Piero, Eugenio Andreoli, Renato Paludetto
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Catalytic system for the oxidative dehydrogenation of alkylaromatics (in particular ethylbenzene) or paraffins to the corresponding alkenylaromatics (in particular styrene) or to the corresponding olefins, consisting of: a vanadium oxide; a bismuth oxide; and a carrier based on magnesium, wherein the vanadium, expressed as V2O5, is in a quantity ranging from 1 to 15% by weight, preferably from 2 to 10%, the bismuth, expressed as Bi2O3, ranges from 2 to 30% by weight, preferably from 5 to 25% by weight, the complement to 100 being the carrier.
A catalyst system consisting of from 1 to 15% by wt of V2O5, and from 2 to 30% by wt of Bi2O3 in combination functioning as catalytically active oxides for the oxidative dehydrogenation of alkylaromatics and paraffins, the percentages based on the weight of the catalyst system, supported on a carrier which is the remainder of the catalyst system and is a member selected from the group consisting of (i) magnesium oxide, (ii) a combination of magnesium oxide and zirconium oxide and (iii) a combination of magnesium hydrotalcite and aluminum hydrotalcite.
A catalyst system consisting of from 1 to 15% by wt of V2O5, and from 2 to 30% by wt of Bi2O3 in combination functioning as catalytically active oxides for the oxidative dehydrogenation of alkylaromatics and paraffins, the percentages based on the weight of the catalyst system, supported on a carrier which consists of a combination of magnesium oxide and zirconium oxide in which the magnesium oxide content ranges from 20 to 40% by wt, based on the weight of the catalyst system.
Dependencies are inferred from the claim text.