Solvent scavenger for a desolventizer toaster using a vapor recovery system
US9683778B2 · kind B2 · utility
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5References
9Claims
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Key dates
| Filing date | Apr 25, 2012 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Feb 16, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF26B21/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.