Morphological characterization and gas permeation of commercially available ceramic membrane.

Orakwe, Ifeyinwa; Nwogu, Ngozi C.; Gobina, Edward

Abstract

This work presents experimental results relating to the structural characterization of a commercially available alumina membrane. A {esc}gc{esc}s-alumina mesoporous tubular membrane has been used. Nitrogen adsorption-desorption, scanning electron microscopy and gas permeability test has been carried out on the alumina membrane to characterize its structural features. Scanning electron microscopy (SEM) was used to determine the pore size distribution of the membrane. Pore size, specific surface area and pore size distribution were also determined with the use of the Nitrogen adsorption-desorption instrument. Gas permeation tests were carried out on the membrane using a variety of single and mixed gases. The permeabilities at different pressure between 0.05-1 bar and temperature range of 25-200oC were used for the single and mixed gases: nitrogen (N2), helium (He), oxygen (O2), carbon dioxide (CO2), 14%CO2/N2, 60%CO2/N2, 30%CO2/CH4 and 21%O2/N2. Plots of flow rate verses pressure were obtained. Results got showed the effect of temperature on the permeation rate of the various gases. At 0.5 bar for example, the flow rate for N2 was relatively constant before decreasing with an increase in temperature, while for O2, it continuously decreased with an increase in temperature. In the case of 30%CO2/CH4 and 14%CO2/N2, the flow rate showed an increase then a decrease with increase in temperature. The effect of temperature on the membrane performance of the various gases is presented in this paper

Citation

ORAKWE, I., NWOGU, N.C. and GOBINA, E. 2015. Morphological characterization and gas permeation of commercially available ceramic membrane. In Ao, S.I., Gelman, L., Hukins, D.W.L., Hunter, A. and Korsunsky, A.M. (eds.) Proceedings of the 2015 World congress on engineering and computer science (WCECS 2015), 21-23 October 2015, San Francisco, USA. Lecture notes in engineering and computer science, 2220. Hong Kong: Newswood Limited [online], pages 607-610. Available from: http://www.iaeng.org/publication/WCECS2015/WCECS2015_pp607-610.pdf

• Conference Name: 2015 World congress on engineering and computer science (WCECS 2015)
• Conference Location: San Francisco, USA
• Start Date: Oct 21, 2015
• End Date: Oct 23, 2015
• Acceptance Date: Aug 4, 2015
• Online Publication Date: Oct 21, 2015
• Publication Date: Dec 31, 2015
• Deposit Date: Mar 23, 2017
• Publicly Available Date: Mar 23, 2017
• Print ISSN: 2078-0958
• Electronic ISSN: 2078-0966
• Publisher: Newswood Academic Publishing
• Pages: 607-610
• Series Title: Lecture notes in engineering and computer science
• Series Number: 2220
• Series ISSN: 2078-0966
• ISBN: 9789881404725
• Keywords: Alumina membrane; Nitrogen adsorption desorption; Scanning electron microscopy; Gas permeation; Temperature
• Public URL: http://hdl.handle.net/10059/2238
• Publisher URL: http://www.iaeng.org/publication/WCECS2015/