Mineral oils: apparatus – Dewaxing
Patent
1980-06-11
1982-02-09
Marcus, Michael S.
Mineral oils: apparatus
Dewaxing
196 1452, 208 33, 261114R, 422134, 422135, 422193, 422225, C10G 7310, B01D 1104
Patent
active
043148867
ABSTRACT:
A liquid-vapor contacting apparatus comprising a vertical, mechanically agitated, elongated tower containing a plurality of vertically spaced, horizontally disposed stages therein and means for separating said stages, each of said stages comprising: (a) liquid tray means; (b) a liquid space and a vapor space above said liquid space; (c) weir means capable of maintaining a predetermined amount of liquid on said liquid tray means; (d) a first liquid downcomer means capable of providing a path for liquid from a stage or location immediately above said stage to the liquid space of said stage; (e) a second liquid downcomer means capable of providing a flowpath for the liquid in said stage to the next, lower, successive stage; (f) means capable of removing vapor from said vapor space including vapor downcomer means capable of providing a path for said vapor from said vapor space to the next lower, successive stage in a manner such that said vapor removed from said stage does not pass through liquid presenting any stage; (g) means for introducing liquid or vapor from a source external to said apparatus into or above the liquid space of said stage; and (h) means for mixing said liquid or vapor introduced into said stage with liquid present in said stage.
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Corcoran Edward M.
Exxon Research & Engineering Co.
Marcus Michael S.
Mazer Edward H.
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