Carbon Capture With Inorganic Membranes

Abstract

Removal and separation of carbon dioxide (CO2) by employing membrane-based gas separation technology is considered as a prospective approach in comparison to conventional CO2 capturing technologies because of advantages such as lower operating and capital costs, higher reliability and energy efficiency along with simpler and cleaner operational processes. In the area of CO2 separation and removal, inorganic membranes have gained quite an attention. Inorganic membranes exhibit remarkable potential in different applications such as CO2 recovery from natural gas, separation of H2 as well as the reduction of emission of green-house gases from flue gas. This book chapter focuses on inorganic membranes and more precisely on microporous inorganic membranes such as zeolite, carbon and silica membranes for carbon capture and separation. These three types of microporous inorganic membranes are extensively studied owing to their ability to separate CO2 gas molecules benefited by distribution of their selective micropores that are nearly similar to desired molecular sizes for diffusing CO2 gas. Moreover, this chapter also includes their comparison with polymeric membranes in terms of CO2 separation.