Gasoline-aided production of alcohol and fuel
Patent 4441891 Issued on April 10, 1984. Estimated Expiration Date: 
December 18, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 18, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesDirect process for the production of gasohol from fermentation mixtures Patent #: 4251231 InventorAssigneeApplicationNo. 06/332219 filed on 12/18/1981US Classes:44/453, Dehydration processes, and products thereof44/452Mixture of alkanolsExaminersPrimary: Howard, Jacqueline V.Attorney, Agent or FirmInternational ClassesC07C 29/00 (20060101)C07C 29/86 (20060101) C07C 29/80 (20060101) C10L 1/02 (20060101) C10L 1/00 (20060101) C12P 7/02 (20060101) C12P 7/06 (20060101) AbstractGasoline aids production of alcohol and fuel in a solvent extraction and recovery process. Alcohol/water mixtures, such as those produced by fermentation of biomass material, are separated by extraction of alcohol with a solvent especially suited to such extraction and to subsequent removal. Conventional distillation steps to concentrate alcohol and eliminate water are rendered unnecessary at a considerable reduction in heat energy requirement (usually met with fossil fuel). Addition of gasoline between the solvent extraction and solvent recovery steps not only aids the latter separation but produces alcohol already denatured for fuel use. | |
