Predicting multicomponent gas transport in hybrid inorganic membranes.

Gobina, Edward; Shehu, Habiba; Orakwe, Ifeyinwa

Abstract

A repeated dip-coating technique has been used to prepare novel inorganic multilayered membranes. The membranes have been characterizated by Scanning Electron Microscopy (SEM) and nitrogen adsorption (ASAP 2010) respectively. The three-parameter model incorporating the gas transport characteristics of the hybrid membranes has been adequately described using a combination of Knudsen and Viscous flows. The model has been used to predict gas transport rates through the membranes over a wide range of gas compositions and good agreement has been observed with experimental data. The model has also been applied to estimate the separation layer thickness. The estimated value of 1.6m is in good agreement with that of 1.62m observed by scanning electron microscopy. The gases studied include O2, N2, He, H2 and mixtures of CO2/N2 and O2/N2, respectively. All experiments were carried out at room temperature and were found to possess both Knudsen and viscous flow as predicted by the model.

Citation

GOBINA, E., SHEHU, H. and ORAKWE, I. 2021. Predicting multicomponent gas transport in hybrid inorganic membranes. In Proceedings of the ICANM 2021: 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021), 9-11 August 2021, [virtual conference]. Ontario: ICANM, pages 47-56.

• Conference Name: 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021)
• Conference Location: [virtual conference]
• Start Date: Aug 9, 2021
• End Date: Aug 11, 2021
• Acceptance Date: Jul 14, 2021
• Online Publication Date: Aug 11, 2021
• Publication Date: Aug 11, 2021
• Deposit Date: Sep 13, 2021
• Publicly Available Date: Sep 13, 2021
• Publisher: International Academy of Energy, Minerals and Materials (IAEMM)
• Pages: 47-56
• Book Title: Proceedings of the ICANM 2021: 8th International conference and exhibition on advanced and nanomaterials 2021 (ICANM 2021)
• Keywords: Hydrogen; Alumina; Membranes; Dip-coating; Permeance
• Public URL: https://rgu-repository.worktribe.com/output/1427973