Estimation of the heat of absorption of CO2 by IR imaging of the surface of solid absorbents.

Arial, 9pt, bold) The mechanisms of CO2 capture by solid adsorbents has been investigated. The understanding of physicochemical mechanisms controlling CO2-adsorbent interactions is primordial for the choice of materials and for the design of industrial capture processes. A key parameter used in these investigations is the heat released during the adsorption of the gas on the adsorbent. Thanks to infrared thermography and an analytical balance, we obtained the estimation of the CO2 adsorption heats on several types of porous materials. This work describes the device and the IR image processing employed to the estimation of the heats of adsorption.