Volatile organic compounds (VOCs) are one of the most important air pollutants because of their harmful effects on the environment and human beings. Generally, VOCs are produced in gas phase and at very low concentrations. Hence, implementation of techniques that involve high efficiencies is required to control such emissions, which is costly. This study analyzes the development of adsorptive properties of spherical activated carbons (SACs) obtained from commercial petroleum pitch (Kureha). From this precursor, two series of SACs were prepared by physical activation with CO2 and steam, studying the effect of activation time on the textural properties of different materials. The ACs have been used in toluene adsorption at low concentration.
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