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Acetic Acid Recovery Using Membranes

Award Information
Agency: Department of Energy
Branch: N/A
Contract: DE-FG02-09ER85492
Agency Tracking Number: 90312
Amount: $99,996.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: 12 d
Solicitation Number: DE-FOA-0000350
Solicitation Year: 2010
Award Year: 2009
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
1360 Willow Road Suite 103
Menlo Park, CA 94025
United States
DUNS: 112716311
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Yu (Ivy) Huang
 (650) 328-2239
Business Contact
 Elizabeth Weiss
Title: Ms.
Phone: (650) 543-3378
Research Institution

The recovery of acetic acid from dilute aqueous streams is an important industrial separation that is both high cost and energy intensive when performed by conventional distillation technology. A need exists for more efficient, lower cost, simpler technology, such as membrane technology. However, the required separation performance, combined with the need for robust chemical and thermal stability of the membrane materials, makes the use of membrane technology for acetic acid recovery very challenging. In this project, perfluorinated polymer membranes will be used to separate the compressed acetic acid from the water vapor in a conventional distillation column. In Phase I, the perfluoropolymer membranes will be optimized, and bench-scale membrane modules will be used to separate water from hot aqueous acetic acid solutions. The data obtained will be used in a process simulation to determine the technical performance and economic feasibility of the proposed distillation-membrane process. In Phase II, a pilot system will be constructed to evaluate the performance of industrial-scale membrane modules, and a field test will be carried out using the pilot system. Commercial Applications and other Benefits as described by the awardee: If successful, the technology will allow acetic acid to be recovered from many aqueous process streams currently discharged or destroyed. The membrane-distillation process should lower energy costs by more than 60% compared to use of conventional distillation alone. Longer term, a successful distillation-membrane technology could be applied to commercial separations of other similar dilute aqueous streams

* Information listed above is at the time of submission. *

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