Separations

Desalination with a cascade of cross-flow hollow fiber membrane distillation devices integrated with a heat exchanger

  1. Hanyong Lee†,
  2. Fei He,
  3. Liming Song‡,
  4. Jack Gilron§,
  5. Kamalesh K. Sirkar*

Article first published online: 19 OCT 2010

DOI: 10.1002/aic.12409

Issue

AIChE Journal

AIChE Journal

Volume 57, Issue 7, pages 1780–1795, July 2011

Additional Information

How to Cite

Lee, H., He, F., Song, L., Gilron, J. and Sirkar, K. K. (2011), Desalination with a cascade of cross-flow hollow fiber membrane distillation devices integrated with a heat exchanger. AIChE J., 57: 1780–1795. doi: 10.1002/aic.12409

Author Information

  1. Otto H. York Dept. of Chemical, Biological and Pharmaceutical Engineering, Center for Membrane Technologies, New Jersey Institute of Technology, Newark, NJ 07102

  1. †

    R&D Center, Samsung Engineering Co. Ltd., Suwon, Kyounggi, Korea 443-823, ROK

  2. ‡

    3M corporation, St. Paul, MN

  3. §

    Ben Gurion University, Beer-Sheva, Israel

*Otto H. York Dept. of Chemical, Biological and Pharmaceutical Engineering, Center for Membrane Technologies, New Jersey Institute of Technology, Newark, NJ 07102-1982

Publication History

  1. Issue published online: 9 JUN 2011
  2. Article first published online: 19 OCT 2010
  3. Accepted manuscript online: 23 AUG 2010 10:38AM EST
  4. Manuscript Revised: 29 JUL 2010
  5. Manuscript Received: 25 SEP 2009

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Keywords:

  • separation techniques;
  • microporous membrane separations;
  • evaporation;
  • fibers;
  • diffusion

Abstract

Cost-efficient desalination technology was developed successfully by integrating a countercurrent cascade of the novel cross-flow direct contact membrane distillation (DCMD) devices and solid polymeric hollow fiber-based heat exchange devices. Simulations have been carried out for the whole DCMD cascade to project values of gained output ratio (GOR) as a function of the number of DCMD stages as well as other important factors in the cascade vis-à-vis the temperatures and flow rates of the incoming hot brine and cold distillate streams. The simulation results were verified with experimental results from cascades consisting of two to eight stages. The numerical simulator predicts a GOR of 12 when unequal flow rates of the incoming brine and distillate streams are used. An artificial sea water was concentrated eight times successfully when a countercurrent cascade composed of four stages of the DCMD modules and a heat exchanger was used during the DCMD process. © 2010 American Institute of Chemical Engineers AIChE J, 2011

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