Activated carbon obtained from waste tires with different particle size

Activated carbons were prepared by physical activation with carbon dioxide from waste tires, modifying the particle size and activation temperature. The carbonization process was carried out in nitrogen atmosphere at 923 K, and the activation at two different temperatures: 1123 and 1223 K. Activated carbons with areas of 25 and 105 m(2)g(-1) and micropore volumes of 0.01 and 0.042 cm(3)g(-1) were obtained, also the inmersion enthalpy of activated carbons in benzene and water were determined, reflecting the apolar and polar solid-liquid interactions respectively. Values of the immersion enthalpies were found between -9.7 and -21.4 Jg(-1) for benzene and between -9.2 and -16.5 Jg(-1) for water