Method for the production of butadiene from n-butane

Details Method for the production of butadiene from n-butane Method for the production of butadiene from n-butane

2006-04-25

2006-04-25

Teskin, Fred (Department: 1713)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

Diolefin product

C585S616000, C585S627000

Reexamination Certificate

active

07034195

ABSTRACT:
The invention relates to a process for preparing butadiene from n-butane comprising the steps(A) providing an n-butane-containing feed gas stream,(B) feeding the n-butane-containing feed gas stream into a first dehydrogenation zone and nonoxidatively catalytically dehydrogenating n-butane to 1-butene, 2-butene and optionally butadiene to obtain a first product gas stream comprising n-butane, 1-butene and 2-butene, with or without butadiene and secondary components,(C) feeding the first product gas stream comprising n-butane, 1-butene and 2-butene, with or without butadiene and secondary components, into a second dehydrogenation zone and oxidatively dehydrogenating 1-butene and 2-butene to butadiene to give a second product gas stream comprising butadiene, n-butane and steam, with or without secondary components,(D) recovering butadiene from the second product gas stream.

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patent: 1391649 (1975-04-01), None

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