New activated carbons were synthesized, characterized, and evaluated using coconut shell (Cocos nucifera) as precursor, to evaluate their capacity to selectively adsorb benzene and cyclohexane. For the synthesis of these materials, the type and concentration of activating agent, ratio of precursor mass/volume of activating agent and time of physical activation were studied. According to the results obtained, the activated carbons with 1M CH3COOH and 0.5M ZnCl2 (samples E1 and E5), presented higher selectivity towards the benzene (27.01 and 28.96 mmol/g, respectively) due to their superficial physicochemical characteristics.

SELECTIVE ADSORPTION OF BENZENE ON ACTIVATED CARBONS FROM COCONUT SHELL

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