Since the 1930’s, amine scrubbing has been extensively used for CO2 separation from natural gas and hydrogen. Its application for CO2 capture, however, dates back to early 1990’s. This technology, however, is highly energy-intensive, and suffers from corrosion, foaming and amine deactivation issues. Considering the shortcomings associated with amine scrubbing, alternative carbon capture processes such as adsorption, including both physical (physisorbents) and chemical adsorbents (chemisorbents), has been widely investigated. Whereas physisorbents generally capture CO2 through combination of van der Waals and pole–ion and pole–pole interactions, chemisorbents typically involve incorporating amines into solid adsorbents. The resulting chemisorbents exhibit the high CO2 capacity and selectivity of amines, without the disadvantages associated with amine solvents. Adsorption-based CO2 capture has attracted tremendous attention from the scientific community and industry alike. Owing to the exceedingly large volumes of feed gases available, large-scale adsorption processes involving large amounts of materials are required. To achieve economic viability, adsorbent materials should have excellent CO2 adsorptive properties, including (i) high CO2 capacity within a desired range of temperature, (ii) high selectivity for CO2, (iii) fast adsorption kinetics, and (iv) being readily regenerable. In addition, they should be cost-effective and stable over many thousands of adsorption-desorption cycles. This panel session will feature presentations by four panelists, representing academia, cement industry, and cleantech companies. Panelists will present an overview of (i) potential feed gases for CO2 capture, namely flue gas from fossil fuel power plants, emissions originating from fuel combustion and decomposition of carbonate minerals during cement production, biogas, landfill gas, syngas, and ambient air; (ii) CO2 capture technologies, namely pre-combustion, oxyfuel combustion, and post-combustion; (iii) different adsorbent materials, including carbons, zeolites, alumina, silica, and Metal-Organic Frameworks (MOFs); (iv) stability issues of adsorbent materials arising from feed gas composition and characteristics, and the adsorption–desorption operational parameters; and (v) commercialization of adsorption-based CO2 capture technologies. List of Panelists • Richard P. Bohan, Vice President – Sustainability, Portland Cement Association, Skokie, IL • Soheil Khiavi, Founder and Chief Technology Officer, Adroitech Inc., Vancouver, Canada • Youssef Belmabkhout, Professor, Mohammed VI Polytechnic University, Morocco • Masoud Jahandar Lashaki, Assistant Professor, Florida Atlantic University, Boca Raton, FL
