Gas separation: processes – Deflecting – Tortuous flow path
Reexamination Certificate
2007-03-21
2010-08-24
Hopkins, Robert A (Department: 1797)
Gas separation: processes
Deflecting
Tortuous flow path
C095S243000, C095S254000, C095S262000, C055S320000, C055S456000, C055S457000
Reexamination Certificate
active
07780766
ABSTRACT:
The invention provides devices and methods for collecting vapor gas generated by an oil-containing material within a production tank. The devices and associated methods result in produced oil having a reduced level of dissolved hydrocarbons and recovery of vapor gas for resale. The devices include vapor recovery units connected to conventional oil-production units so that a conventional unit is converted to a low emission unit. In an embodiment, the device is a column separator comprising a perforated, packed spiral baffle with one end that receives vapor gas and a second end for removing gas that has traversed the length of the column separator. Also provided are methods for converting an oil-production unit into a low-emission oil production unit using any of the devices disclosed herein.
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International Search Report, Corresponding to International Application No. PCT/US07/64597, Mailed Oct. 23, 2007.
Written Opinion of the International Searching Authority, Corresponding to International Application No. PCT/US07/64597, Mailed Oct. 23, 2007.
Greenlee Winner and Sullivan P.C.
Hopkins Robert A
Leed Fabrication Services, Inc.
Turner Sonji
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