1
Raphael Katzen, Vincent B Diebold: Alcohol distillation process. Raphael Katzen Associates International, Hibben Noyes & Bicknell, November 9, 1976: US03990952 (139 worldwide citation)

A crude alcohol-containing mixture comprising a saturated aliphatic alcohol of not more than three carbon atoms and associated impurities is processed in a three-tower distillation system to permit recovery of the desired alcohol product in highly concentrated and purified form. In the first tower t ...


2
Burke F Brush, Raphael Katzen: Hydrous alcohol distillation method and apparatus. Raphael Katzen Associates International, Merriam Marshall & Bicknell, December 22, 1981: US04306942 (124 worldwide citation)

An improved distillation method and apparatus are provided for recovering hydrous ethanol from fermentation or synthetic feedstocks. Substantial energy savings are realized by utilizing a pair of stripper-rectifier towers in which overhead vapors from one tower operating at a higher pressure supply ...


3
John R Messick, William R Ackley, George D Moon Jr: Anhydrous ethanol distillation method and apparatus. Raphael Katzen Associates International, Merriam Marshall & Bicknell, December 27, 1983: US04422903 (112 worldwide citation)

An improved distillation method and apparatus are provided for recovering anhydrous ethanol from fermentation or synthetic feedstocks. The system includes at least one stripper-rectifier tower, a dehydrating tower, and an azeotropic agent stripping tower. Substantial energy savings are realized by o ...


4
Raphael Katzen, George D Moon Jr, Jimmy D Kumana: Distillation system for motor fuel grade anhydrous alcohol. Raphael Katzen Associates International, Merriam Marshall & Bicknell, August 12, 1980: US04217178 (32 worldwide citation)

An improved distillation method is provided for obtaining motor fuel grade anhydrous ethanol from fermentation or synthetic feedstocks. A three tower system is used comprising a stripper-rectifier tower in which the dilute feedstock is converted to a concentrated ethanol stream, a dehydrating tower ...


5
Diebold Vincent B, Katzen Raphael: Procede pour la distillation et la purification dun melange contenant un alcool brut, Process for distillation and purification of a crude alcohol containing mixture. Raphael Katzen Associates International, June 5, 1979: CA1055875

ABSTRACT A crude alcohol-containing mixture comprising a sat-urated aliphatic alcohol of not more than 3 carbon atoms andassociated impurities is processed to permit recovery of thedesired alcohol product in highly concentrated and purifiedform. In a first extractive distillation tower the crude fee ...


6
Messick John R, Ackley William R, Moon George D Jr: Methode et appareil pour la production dethanol anhydre par distillation, Anhydrous ethanol distillation method and apparatus. Raphael Katzen Associates International, MEREDITH & FINLAYSON, December 11, 1984: CA1179290

Abstract Of The Disclosure An improved distillation method and apparatusare provided for recovering anhydrous ethanol from fermen-tation or synthetic feedstocks. The system includes atleast one stripper-rectifier tower, a dehydrating tower,and an azeotropic agent stripping tower. Substantial energys ...