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Chemical reaction kinetics between carbon dioxide with two cyclic amines (pyrrolidine and piperidine) have been studied using a stirred tank reactor with a planar interfacial area. The operational variables considered in this work have been the amine concentration in the liquid phase and the reaction temperature. Specific absorption rates have been determined under different experimental conditions. Results indicate that the absorption process occurs in a pseudo first reaction regime exhibited first-order kinetic with respect carbon dioxide and a second order for both cyclic amines. The reaction-rate constant was determined under the different experimental conditions, and it was correlated depending on the temperature by means of an Arrhenius type equation.

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