Gas separation – With inflow gas control or distribution – Multiple inlets
Reexamination Certificate
2007-12-25
2007-12-25
Hopkins, Robert A. (Department: 1724)
Gas separation
With inflow gas control or distribution
Multiple inlets
C055S426000, C055S428000, C055S459100, C055S466000
Reexamination Certificate
active
10851434
ABSTRACT:
A highly efficient vapor/liquid separation apparatus for treating a flow of vapor/liquid mixtures of hydrocarbons and steam comprises a substantially cylindrical vertical drum having an upper cap section, a middle section comprising a circular wall, a lower cap section, a tangential inlet to introduce hydrocarbon/steam mixtures, an overhead vapor outlet, and a bottom outlet for liquid. The vessel also comprises an annular structure located in the middle section, comprising i) an annular ceiling section extending from the circular wall and ii) a concentric internal vertical side wall to which the ceiling section extends. The annular structure blocks upward passage of vapor/liquid mixtures along the circular wall beyond the ceiling section, and surrounds an open core having sufficient cross-sectional area to permit vapor velocity low enough to avoid significant entrainment of liquid.
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Di Nicolantonio Arthur R.
Frye James M.
Stell Richard C.
Stephens George
ExxonMobil Chemical Patents Inc.
Hopkins Robert A.
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