Thermal effects during the absorption of CO2 in aqueous solutions of 3-amino-1-propanol

In this work, we study the process of CO2 absorption, at high partial press ures, in aqueous solutions of 3-amino-1-propanol (AP), with respect to the thermal effects of this operation. All of the experiments were performed in a stirred tank gas-liquid reactor with a flat, known interface. The variab les considered were the AP concentration in the range of 0.1 to 3.0 M and t he temperature within the interval of 288-313 K. From the results, we deduc e that the process takes place in the instantaneous nonisothermal regime, a nd we propose an equation which relates the experimental results of molar f lux with the initial amine concentration. At the same time, we can evaluate the temperature increase at the gas-liquid interface.