Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – Plural hydrogenation stages
Reexamination Certificate
2005-02-22
2005-02-22
Dang, Thuan D. (Department: 1764)
Chemistry of hydrocarbon compounds
Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...
Plural hydrogenation stages
C585S254000, C585S261000, C585S262000
Reexamination Certificate
active
06858766
ABSTRACT:
The present invention provides a process for selectively hydrogenating C2-C10greater unsaturated hydrocarbons (acetylenes and diolefins) at the upstream side of a front depropanizer or front deethanizer in an olefin production plant. After passing through a mixed phase hydrogenation reactor to selectively hydrogenate, the olefin plant process stream passes to a front depropanizer or front deethanizer. The process according to the present invention is able to selectively hydrogenate C2-C10greater unsaturated hydrocarbons (including acetylene), to reduce the number of equipments, the amount of equipment fouling and the energy consumption.
REFERENCES:
patent: 5414170 (1995-05-01), McCue et al.
Chen Shuo
Dai Wei
Guo Yanlai
Liao Lihua
Mu Wei
Dang Thuan D.
Harkins Tanya E.
Nath Gary M.
Nath & Associates PLLC
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