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AssigneeBoard of Regents, The University of Texas System
InventorsRichard B. Timmons, Wen-Long Jang, Yigong He, David J. Houpt, Jr.
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A novel catalytic process involving complete hydrodehalogenation of halogenated aliphatic hydrocarbons in the presence of a hydrogen donor and a modified zeolite catalyst has been developed. The process is operated in a continuous flow mode and reaction products consist exclusively of hydrogen halide and hydrocarbons. The relative ratio of paraffins to olefins to aromatics obtained in the product distribution is a strong function of the ratio of hydrogen to reactant and the space velocity and temperature employed. The catalyst employed is a nickel metal modified shape selective zeolite that takes advantage of the hydrogenolysis ability of nickel and the acidic-shape selective properties of the zeolite.
A process for complete hydrodehalogenation of an aliphatic or alicyclic halogenated hydrocarbon to form a nonhalogenated hydrocarbon product, comprising contracting said aliphatic or alicyclic halogenated hydrocarbon in the gaseous phase with an elemental nickel-containing zeolite catalyst in the presence of a hydrogen donor at a temperature of about 300.degree. C. to about 500.degree. C.
Dependencies are inferred from the claim text.