Seperation of CO2 from Nitrogen and Oxygen Using Hydrophobic Ceramic Membrane

Abstract

Idris Abdullahi Hashim, Habiba Shehu, Woyintonye Igbagara, Muktar Ramalan, Mamdud Hossain, Ayo Giwa, and Aditiya Karnik

The membranes were characterized through contact angle measurements, scanning electron microscopy (SEM), Fourier Transform Infrared spectroscopy (FTIR) analysis, and more. The results showed that the hydrophobicity of the membrane was confirmed, even particle distribution was observed, and its chemical composition was analyzed. In single gas permeation experiments, it was observed that Nitrogen gas permeated faster than O2 and CO2 through the unmodified ceramic hydrophobic membrane. However, non-selective defects limited the improvement in the selectivity of hydrophobic ceramic membranes. Therefore, there is a need to modify the ceramic membrane used to increase the flux, permeance of CO2 , and selectivity of CO2 . The study highlights the potential of ceramic membranes in CO2 capture and its need for further improvement.

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