Solvent scavenger for a desolventizer toaster using a vapor recovery system
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United States of America Patent
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Jun 20, 2017
Grant Date -
Oct 25, 2012
app pub date -
Apr 25, 2012
filing date -
Apr 25, 2011
priority date (Note) -
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Abstract
An improved desolventizer-toaster (DT) unit is used for removing traces of a hydrocarbon solvent from a mass of vegetable particles of oil. A conventional DT unit has within a housing, a set of solvent removal trays and a main ejector transporting solvent vapor and steam from below the tray set to between a pair of the trays in the set. The improved DT unit has a further scavenger tray between an inlet of the main ejector and the housing floor. A scavenger ejector transports solvent vapor from between the scavenger tray and the housing floor before it exits from the unit, to the space between the tray set and the scavenger tray.
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