Gas Phase Adsorption of Volatile Organic Compounds and Water Vapor on Activated Carbon Cloth

Abstract

This research examined the use of activated carbon cloths (ACC) to remove low concentrations of acetaldehyde, acetone, benzene, and methyl ethyl ketone from air. This work has applications in producing filtration systems for indoor air environments, industrial gas streams, and spray paint booths. Adsorption isotherms were measured for volatile organic compound adsorbate concentrations in the 10−1000 ppmv range and for water vapor from 0 to 95% relative humidity. The Dubinin−Radushkevich model was used to predict equilibrium adsorption capacities in the 100 ppbv to 10 000 ppmv concentration range. The adsorption of acetone−benzene mixtures on ACC was experimentally measured and then modeled using ideal adsorbed solution theory.