High selectivity process for dehydrogenation of paraffinic hydro

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – With preliminary diverse conversion

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585259, 585262, 585315, 585324, 585654, 208255, C07C 5327, C07C 500

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045202141

ABSTRACT:
An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated to yield an olefin-containing vapor stream, which is partially condensed to produce a liquid phase process stream which contains by-product diolefins along with the intended product monoolefins. The liquid phase process stream and added hydrogen are passed through a selective hydrogenation zone in which diolefins are catalytically converted to monoolefins. This increases the quality of the product monoolefin stream. The selective hydrogenation zone is located between the vapor-liquid separator and stripper column of the dehydrogenation zone.

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Chemical Engineering, 01-26-70, pp. 86-88, "Two Processes Team Up to Make Linear Mono-Olefins", by D. B. Broughton and R. C. Berg.

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