Liquid purification or separation – Processes – Separating
Patent
1992-12-07
1994-04-26
Drodge, Joseph W.
Liquid purification or separation
Processes
Separating
208 38, 210774, 210784, 210798, B01D 3348, C10G 7322
Patent
active
053064330
ABSTRACT:
An improved solvent dewaxing process in which a method and apparatus for continuous hot wash of a dewaxing filter is disclosed. A hot wash solvent is continuously sprayed below the doctor blade followed by a cold solvent spray below the hot solvent spray. Additionally, a solvent management process for changing the proportions of the solvent in response to different viscosity feedstocks thereby increasing filtration efficiency is also disclosed.
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Cuomo Lori F.
Drodge Joseph W.
McKillop Alexander J.
Mobil Oil Corporation
Santini Dennis P.
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