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US 2008/0177019 A1Published application
High-pressure separator
AssigneeWestlake Longview Corporation
InventorsBailey James Salmon, Wayne Scott Strasser, Kenneth Alan Dooley, Justin Dean Hearron, Mark Dwayne Lorenz
Life of this patent
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Abstract
A high-pressure separator with improved efficiency is provided. The separator comprises a centrifugal separator located inside of a gravity separator. The centrifugal separator has an enclosed upper portion and desirably comprises a single cylinder. The high-pressure separator is particularly suitable for use in the production of low-density polyethylene under high pressure.
Claims12
An apparatus for separating a high-pressure mixture comprising a gas and liquid particles, said apparatus comprising:
- (a) a gravity separator for expanding and separating said mixture into a gas phase and a liquid phase, said gravity separator comprising a vertical cylindrical shell, an opening for an inlet for said mixture, a gas outlet located in an upper portion of the cylindrical shell, and a liquid outlet located in a lower portion of the cylindrical shell;
- and
- (b) a centrifugal separator located inside of said gravity separator for imparting a helical flow to said mixture, said centrifugal separator comprising an inlet for said mixture located in an upper portion of the centrifugal separator, an enclosed upper portion except for the inlet, and an outlet for said mixture located at a lower portion of the centrifugal separator.
Dependencies are inferred from the claim text.