Water vapor removal using CA/PEG blending materials coated hollow fiber membrane

Keehong Kim, Pravin G. Ingole, Sanghee Yun, Wonkil Choi, Jong Hak Kim, Hyungkeun Lee

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

BACKGROUND: In this study, a polyethersulfone composite hollow fiber membrane was used for the separation of water vapor from mixed gas. For improvement of the separation properties, the fabricated membrane was coated with cellulose acetate (CA) and polyethylene glycol (PEG). RESULTS: Experiments on the permeation of water vapor and N2 gas mixture were performed to observe membrane behavior as a function of the coating conditions, such as the composition and molecular weight of PEG. The water vapor permeance and selectivity of water vapor/N2 improved from 68.5 GPU to 444.1 GPU and from 76.1 to 175.5, respectively, using 5 wt% PEG 2000 blended coating solution. CONCLUSION: An increase in the PEG content and molecular weight of the coating solution affected the permeance and selectivity due to the hydrophilicity of PEG and the structural changes of the coating layer.

Original languageEnglish
Pages (from-to)1117-1123
Number of pages7
JournalJournal of Chemical Technology and Biotechnology
Volume90
Issue number6
DOIs
Publication statusPublished - 2015 Jun 1

Fingerprint

Coated materials
Steam
Water vapor
Polyethylene glycols
cellulose
Cellulose
coating
acetate
water vapor
membrane
Membranes
Coatings
Fibers
Molecular Weight
Gases
Molecular weight
Hydrophilicity
Hydrophobic and Hydrophilic Interactions
Permeation
Gas mixtures

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Chemical Engineering(all)
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Waste Management and Disposal
  • Pollution
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

Kim, Keehong ; Ingole, Pravin G. ; Yun, Sanghee ; Choi, Wonkil ; Kim, Jong Hak ; Lee, Hyungkeun. / Water vapor removal using CA/PEG blending materials coated hollow fiber membrane. In: Journal of Chemical Technology and Biotechnology. 2015 ; Vol. 90, No. 6. pp. 1117-1123.
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Water vapor removal using CA/PEG blending materials coated hollow fiber membrane. / Kim, Keehong; Ingole, Pravin G.; Yun, Sanghee; Choi, Wonkil; Kim, Jong Hak; Lee, Hyungkeun.

In: Journal of Chemical Technology and Biotechnology, Vol. 90, No. 6, 01.06.2015, p. 1117-1123.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Water vapor removal using CA/PEG blending materials coated hollow fiber membrane

AU - Kim, Keehong

AU - Ingole, Pravin G.

AU - Yun, Sanghee

AU - Choi, Wonkil

AU - Kim, Jong Hak

AU - Lee, Hyungkeun

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AB - BACKGROUND: In this study, a polyethersulfone composite hollow fiber membrane was used for the separation of water vapor from mixed gas. For improvement of the separation properties, the fabricated membrane was coated with cellulose acetate (CA) and polyethylene glycol (PEG). RESULTS: Experiments on the permeation of water vapor and N2 gas mixture were performed to observe membrane behavior as a function of the coating conditions, such as the composition and molecular weight of PEG. The water vapor permeance and selectivity of water vapor/N2 improved from 68.5 GPU to 444.1 GPU and from 76.1 to 175.5, respectively, using 5 wt% PEG 2000 blended coating solution. CONCLUSION: An increase in the PEG content and molecular weight of the coating solution affected the permeance and selectivity due to the hydrophilicity of PEG and the structural changes of the coating layer.

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