Patents Represented by Attorney Ramey & Browning PLLC
  • Patent number: 8344189
    Abstract: A method for recovery of fuel-grade ethanol from dilute aqueous ethanol feed in a continuous or batch-wise process includes providing a feed tank containing a dilute aqueous ethanol liquid phase and a vapor phase, removing a portion of the vapor phase from the tank and circulating it through a membrane contactor having an inner lumen and an outer shell, recovering from the membrane contactor a feed phase substantially reduced in ethanol and a solvent phase substantially enriched in ethanol, separating an enriched ethanol phase from the solvent phase, and removing a substantial amount of water from the enriched ethanol phase to produce a fuel-grade ethanol stream. A Venturi nozzle may be used in lieu of the membrane contactor.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: January 1, 2013
    Assignee: Trans Ionics Corporation
    Inventor: Robert C. Schucker