The kinetics of SspCA was characterized in terms of first order CO2 hydration rate according to a procedure based on CO2 absorption tests in a stirred cell apparatus. The first order kinetic constant at 25 ¡ãC was 9.16 ¡Á 106 L/(mol s).
An appropriate investigation on SspCA stability was carried out to assess its long-term resistance to high temperatures as in all capture processes based on absorption/vacuum-desorption cycles. Its half-life was 53 and 8 days at 40 ¡ãC and 70 ¡ãC, respectively.