A comparison of porous and non-porous gas-liquid membrane contactors for gas separation

AlSaffar H., Ozturk B., Hughes R.

CHEMICAL ENGINEERING RESEARCH & DESIGN, cilt.75, sa.A7, ss.685-692, 1997 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 75 Sayı: A7
  • Basım Tarihi: 1997
  • Doi Numarası: 10.1205/026387697524182
  • Dergi Adı: CHEMICAL ENGINEERING RESEARCH & DESIGN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.685-692
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

Measurements have been made on the separation of CO2 from gas phase by aqueous absorbents (water and diethanolamine solution) using non-porous and microporous hollow fibre membrane modules. The use of an absorbent liquid in the permeate side of the permeator enhances CO2 separation and reduces the requirements for a high pressure ratio across the membrane. A mathematical model based on the effective permeability of the gaseous mixtures has been used to assess the performance of both hollow fibre membranes, and a correlation for the shell side mass transfer has been developed. Overall mass transfer in the microporous and non-porous membranes is dominated by the liquid film coefficient and a combination of liquid film and membrane resistances, respectively.