Oxidative dehydrogenation of hydrocarbons with solid superacid c

Details Oxidative dehydrogenation of hydrocarbons with solid superacid c Oxidative dehydrogenation of hydrocarbons with solid superacid c

1993-12-29

1995-12-19

Pal, Asok

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By dehydrogenation

585658, 585661, 585444, 585445, C07C 532, C07C 284

Patent

active

054769817

ABSTRACT:
Solid superacid catalyst, for example sulfated zirconia, is used in the oxidative dehydrogenation of saturated or partially saturated hydrocarbons, for example the conversion of isobutane to isobutylene in the presence of an oxygen-containing oxidizing agent at reaction conditions typically including temperatures from 500 to 1,000 degrees Fahrenheit, superatmospheric pressures, and oxygen/alkane molar ratios from 0.2 to 20. Performance of a metal-oxide or metal-hydroxide oxidative dehydrogenation catalyst may be enhanced by pretreating a solid superacid or other catalyst containing metal oxides or hydroxides at a carbonizing temperature with an organic material, for example an oxygen-containing organic material, to form a carbonaceous layer on the surface thereof prior to use of the catalyst in oxidative dehydrogenation.

REFERENCES:
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Manassen et al., "Organic Polymers, Correlation between Their Structure and Catalytic Activity in Heterogeneous Systems. I. Pyrolyzed Polyacrylonitrile and Polycyanoacetylene" J. Am. Chem. Soc., 87:12, 2671-2677 (1965).

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