A Practical Approach To CO2 Sequestration: Reactions With High Salinity Water | 73113
ISSN: 2157-7617

Journal of Earth Science & Climatic Change
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A practical approach to CO2 sequestration: Reactions with high salinity water

6th International Conference on Earth Science and Climate Change

Muftah H El-Naas

Qatar University, Qatar

ScientificTracks Abstracts: J Earth Sci Clim Change

DOI: 10.4172/2157-7617-C1-030

Carbon dioxide is known to be a major contributor to global warming and climate change and hence has an adverse effect on environmental sustainability. CO2 is emitted by various activities associated with industrial processes and the burning of various types of carbonaceous fuels such as coal, oil and gas. Over the past few years, there has been a considerable amount of interest in carbon capture and storage (CCS) as an option to mitigate the harmful effects of CO2 emissions. This study evaluates a new approach to the capture and sequestration of CO2 through reactions with high salinity water in the presence of an alkaline agent. Processes such as the Solvay process have been successful in utilizing the reactions of CO2 with ammoniated high salinity water to sodium bicarbonate. This process, however, suffers from several drawbacks such as inefficient contact mechanism and the need for the regeneration of ammonia as alkaline catalyst in the process. Such drawbacks have been addressed through developing a new, inert particles reactor system that offers efficient mixing and stable operation. At the same time, carbon dioxide is reacted with high salinity water in the presence calcium hydroxide instead of ammonia to provide the alkalinity needed for the reaction of CO2 and NaCl. The new process and reactor system were able to achieve high CO2 capture efficiency (up to 99%) and effective reduction in water salinity (up to 40%), while storing the CO2 in a stable solid form, namely sodium bicarbonate. The new process can utilize any alkaline solid waste and the inert particles reactor system can be used to capture CO2 from different sources such as natural gas or flue gas.

Muftah H El-Naas is a QAFCO Chair Professor in Chemical Process Engineering at the Gas Processing Center, College of Engineering, Qatar University. He has completed his BASc degree in Chemical Engineering from the University of British Columbia, Canada, MEng and PhD in Chemical Engineering from McGill University, Canada. He has previously served as Chair of the Chemical and Petroleum Engineering Department, Director of the Petroleum Science and Engineering Graduate Program and Director of Research Funding at the UAE University. He has authored more than 150 papers in international journals and conferences, in addition to several book chapters and patent applications. His area of expertise includes CO2 capture and sequestration, biotechnology, water treatment and purification, membrane separation and plasma technology. Most of his recent research work focuses on the development of new, environmental-friendly technologies for the oil and gas industry.

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