Selective hydrogenation of butadiene

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – Hydrocarbon is contaminant in desired hydrocarbon

Reexamination Certificate

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C585S260000, C585S261000, C585S262000

Reexamination Certificate

active

10926207

ABSTRACT:
A process for the selective hydrogenation of dienes in mixed streams of olefin containing hydrocarbons, such as butadiene in a mixed C4stream with minimum loss of monoolefins is disclosed wherein the reactor is operated at conditions which induce pulse flow. The pulse flow is induced in a downflow boiling point reactor by vaporization of a portion of the liquid feed at proper conditions.

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