Empleo de la Calorimetría de Inmersión en la caracterización de carbones activos de cascarón de coco obtenido por activación física con vapor de agua en horno botella: una primera aproximación

M. HUERTEMENDÍA, A. FERNÁNDEZ RODRÍGUEZ, RUBÉN AJA, RAFAEL CASTILLO, J.C. MORENO PIRAJÁN, K. SAPAG, C. DE LAS POZAS, C. MAFULL

La Habana, Cuba

Congreso; Congreso Iberoamericano de Metalurgia y Materiales; 2006

Sociedad Iberoamericana de Metalurgia y Materiales

One of the more important aspects on the characterization of a porous material to be used in adsorption and catalysis processes is its pore size distribution. This topic is of particular interest in the case of activated carbons, because these materials usually show a very complex porous structure which additionally is highly dependent on the obtainment conditions. With this aim a wide variety of experimental techniques have been developed, among of them the immersion calorimetry is one to be highlighted. The present work shows the first results of the characterization of a series of coconut shell activated carbons obtained with water vapor as activating agent and in different temperatures and times of reaction. The experiments were carried out in a bottle shaped reactor in the Centre of Investigations for Mining and Metallurgical Industry, CIPIMM. The experimental techniques employed were the immersion calorimetry in conjunction with physical adsorption of gases (N2 at 77K). The limitations of the calorimetric technique in the given conditions are analyzed