International Journal of Scientific Engineering and Technology

Open Access Open Access  Restricted Access Subscription Access

Purification of Gases Using Nanoporous Inorganic Membranes


Affiliations
1 Centre for Process Integration and Membrane Technology (CPIMT), School of Engineering, The Robert Gordon University, Aberdeen, United Kingdom
 

The application of membranes has gained acceptance in the chemical and process industries for separation and purification for over three decades and is currently being practiced for natural gas processing, waste water treatment among others. A crack-free composite membrane was employed in this paper. Scanning electron microscopy (SEM) observation was carried out to characterize the membrane. The operational parameters such as feed flow rate, permeation pressure, permeation temperature, kinetic diameter and gas molecular characteristics are examined at 25 °C to 450 °C and 0.05 to 1.0 barg feed pressure. The performance of gas selectivity is also provided Separation factor of 2.554 was obtained for H2/CO2 at 450 °C and 0.8 barg. Activation energies of 1.0 and 0.42 kJ/mol were also obtained for H2 and CO2/CO/H2 gas mixtures at 1.0 barg.

Keywords

Composite Membranes, Gas Permeation, Separation Factor, Activation Energy.
User
Notifications
Font Size

Abstract Views: 138

PDF Views: 0




  • Purification of Gases Using Nanoporous Inorganic Membranes

Abstract Views: 138  |  PDF Views: 0

Authors

M. N. Kajama
Centre for Process Integration and Membrane Technology (CPIMT), School of Engineering, The Robert Gordon University, Aberdeen, United Kingdom
H. Shehu
Centre for Process Integration and Membrane Technology (CPIMT), School of Engineering, The Robert Gordon University, Aberdeen, United Kingdom
E. Gobina
Centre for Process Integration and Membrane Technology (CPIMT), School of Engineering, The Robert Gordon University, Aberdeen, United Kingdom

Abstract


The application of membranes has gained acceptance in the chemical and process industries for separation and purification for over three decades and is currently being practiced for natural gas processing, waste water treatment among others. A crack-free composite membrane was employed in this paper. Scanning electron microscopy (SEM) observation was carried out to characterize the membrane. The operational parameters such as feed flow rate, permeation pressure, permeation temperature, kinetic diameter and gas molecular characteristics are examined at 25 °C to 450 °C and 0.05 to 1.0 barg feed pressure. The performance of gas selectivity is also provided Separation factor of 2.554 was obtained for H2/CO2 at 450 °C and 0.8 barg. Activation energies of 1.0 and 0.42 kJ/mol were also obtained for H2 and CO2/CO/H2 gas mixtures at 1.0 barg.

Keywords


Composite Membranes, Gas Permeation, Separation Factor, Activation Energy.