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Membrane augmented distillation to separate solvents from water

United States Patent

September 11, 2012
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Processes for removing water from organic solvents, such as ethanol. The processes include distillation to form a rectified overhead vapor, compression of the rectified vapor, and treatment of the compressed vapor by two sequential membrane separation steps.
Huang; Yu (Palo Alto, CA), Baker; Richard W. (Palo Alto, CA), Daniels; Ramin (San Jose, CA), Aldajani; Tiem (San Jose, CA), Ly; Jennifer H. (San Jose, CA), Alvarez; Franklin R. (Cincinnati, OH), Vane; Leland M. (Cincinnati, OH)
Membrane Technology and Research, Inc. (Menlo Park, CA), United States Environmental Protection Agency (Washington, DC)
12/ 674,808
August 27, 2008
This invention was made in part with Government support under award number DE-FG02-04ER84001, awarded by the United States Department of Energy, and in part under a Cooperative Research and Development Agreement (CRADA) between the United States Environmental Protection Agency and Membrane Technology and Research, Inc. The Government has certain rights in this invention.