REMOVAL OF CARBON-DIOXIDE FROM GAS STREAMS USING A GAS-LIQUID HOLLOW-FIBER MODULE

ALSAFFAR H., OKLANY J., OZTURK B., HUGHES R.

PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, cilt.73, sa.B2, ss.144-150, 1995 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 73 Sayı: B2
  • Basım Tarihi: 1995
  • Dergi Adı: PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.144-150
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

A silicone rubber hollow fibre membrane module coupled with a liquid absorbent has been used to determine the efficiency of carbon dioxide removal from a nitrogen stream. The effects of different operating conditions on the permeation process have been investigated for co-current and counter-current flow patterns. Results obtained showed that the use of an absorbing liquid suitable for the gaseous species to be removed has increased the selectivity of this type of membrane by more than six fold. A new concept, the effective permeability, is introduced to interpret the results. Numerical simulation results obtained from the mathematical model devised for the separation process are in good agreement with the experimental data. The results show that mass transfer is controlled by the liquid phase resistance as well as the membrane resistance. Membrane resistance is found to account for up to 45% of the total resistance for this type of membrane.