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Solaymani, A., Doroodmand, M., Sabbaghi, S. (2012). Comparative investigation on the correction factors of hydrogen permeability on CNTs-Mixed matrix membrane. International Journal of Nano Dimension, 2(4), 217-221. doi: 10.7508/ijnd.2011.04.001
A. Solaymani; M. M. Doroodmand; S. Sabbaghi. "Comparative investigation on the correction factors of hydrogen permeability on CNTs-Mixed matrix membrane". International Journal of Nano Dimension, 2, 4, 2012, 217-221. doi: 10.7508/ijnd.2011.04.001
Solaymani, A., Doroodmand, M., Sabbaghi, S. (2012). 'Comparative investigation on the correction factors of hydrogen permeability on CNTs-Mixed matrix membrane', International Journal of Nano Dimension, 2(4), pp. 217-221. doi: 10.7508/ijnd.2011.04.001
Solaymani, A., Doroodmand, M., Sabbaghi, S. Comparative investigation on the correction factors of hydrogen permeability on CNTs-Mixed matrix membrane. International Journal of Nano Dimension, 2012; 2(4): 217-221. doi: 10.7508/ijnd.2011.04.001

Comparative investigation on the correction factors of hydrogen permeability on CNTs-Mixed matrix membrane

Article 2, Volume 2, Issue 4, Spring 2012, Page 217-221  XML PDF (441 K)
Document Type: Reasearch Paper
DOI: 10.7508/ijnd.2011.04.001
Authors
A. Solaymani1; M. M. Doroodmand2; S. Sabbaghi 1
1Department of Nano Chemical Engineering, Shiraz University, Shiraz, Iran.
2Department of Chemistry, College of Sciences, Shiraz University, Shiraz 71454, Iran.
Abstract
This paper discusses different important gas permeation models such as “Maxwell”, “Bruggeman”, “Lewis-Neilson”, and “Pal” models to predict “Mixed Matrix Membranes” (MMMs) performance. The main parameter considered and discussed is the permeability of Hydrogen on Carbon Nanotubes (CNTs)-MMM. For evaluation of the theoretical models, experimental data of permeability for H2 were compared to the theoretical models. The results revealed that, the existing models are not appropriate for evaluation of the permeability of the carbon nanostructure-based MMMs. Therefore, correction factors are needed to fit the selective permeability of carbon nanostructure-based MMMs for selective separation of various gaseous such as H2 or CO2. This correction factor robustly depends on the morphology of carbon nanostructures, the defect, kind and amount of metal/metal oxide nanoparticles, doped on carbon substrate and functional groups in the carbon matrix. Hence, to be in a good agreement with experimental data for separation of H2 from CO2, the correction value was estimated to -0.0022 for single-walled carbon nanotubes (SWCNTs), -0.0032 for pure multi-walled carbon nanotubes (MWCNTs), -0.0044 for carbon nanofibers (CNFs).
Keywords
Mixed matrix membrane; Permeation model; Gas separation; Permeability
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