CO2 Capture in Industrial Effluents. Calorimetric Studies

Jean-Yves Coxam and Karine Ballerat-BusseroUes 

Carbon dioxide is considered as a main greenhouse gas. Its contribution to global warming can be pointed up by correlations between the evolution of CO2 in atmosphere and the average earth temperature [1]. Since the eighteenth century the concentration of CO2 has approximately risen from 280-380 ppm when simultaneously temperature has increased by 0.6 K. Anthropogenic sources of carbon dioxide represents currently about 25 Gt per year. If we consider constant industrial development and population growth in the world, the emissions of carbon dioxide will 

Coxam (El) K. BaUerat-BusseroUes Institut de Chimie de Clermont-Ferrand, 

Springer Series in Materials Science 154, DOI 10.1007/978-3-642-11954-5 14, Springer-Veiiag Berlin Heidelbeig 2013 

Capture processes were developed in the past to remove acid gases such as carbon dioxide and hydrogen sulfide (H2S) from natural gas. They are mainly based on chemical and physical dissolution of the acid gas in aqueous solutions of amines. The technique is considered as mature enough to be adapted in next future to the treatment of post combustion effluents. The new processes should take into account difference from natural gas treatment such as temperature, pressure or composition of the effluent. However one major barrier for the integration into industrial sites in the few coming years is the economical cost of the so called ton of CO2 avoided. Specific researches are then carried out on both the technology and the choice of the absorbent solutions. 

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