Refrigeration – Cryogenic treatment of gas or gas mixture – Separation of gas mixture
Reissue Patent
2008-03-04
2008-03-04
Tyler, Cheryl (Department: 3744)
Refrigeration
Cryogenic treatment of gas or gas mixture
Separation of gas mixture
C062S630000, C062S935000
Reissue Patent
active
10813689
ABSTRACT:
A process for the high-yield recovery of ethylene and heavier hydrocarbons from the gas produced by pyrolysis of hydrocarbons in which the liquid products resulting from the fractionated condensation of a cracking gas for the recovery of almost all the ethylene, are supplied to a distillation column, called a de-ethanizer, at different intermediate levels. At the top of the de-ethanizer the vapor of the column distillate is treated directly in an acetylene hydrogenation reactor, the effluent containing virtually no acetylene being separated by a distillation column called a de-methanizer, into an ethylene- and ethane-enriched tail product, while the head product is recycled by compression or treated for subsequent recovery of ethylene.
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Kaiser Victor
Laugier Jean-Paul
Simon Yvon
Early Michael J.
Leydig , Voit & Mayer, Ltd.
Technip
Tyler Cheryl
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