DEVELOPMENT OF THE ADSORPTION-CATALYTIC REVERSE-PROCESS FOR INCINERATION OF VOLATILE ORGANIC-COMPOUNDS TN DILUTED WASTE GASES

Development of adsorption-catalytic reverse-process, based on adsorpti on of volatile organic compounds (VOC) on the surface of oxide catalys t with periodical incineration of accumulated compounds, applying reve rse-flow operation technique is described. Process fundamentals were s tudied on the base of mathematical model, accounting for heat and mass transfer between gas and catalyst, heat conductivity of the catalyst bed frame, physical adsorption/desorption and irreversible chemisorpti on of VOC and oxidation of surface compounds. Mathematical modeling sh owed the high purification efficiency (higher than 99.9%) combined wit h extremely low energy consumption of the proposed process (less than 1-3 kJ per m(3) of waste gas) in the case of processing of waste gases with low VOC content (below 0.8 g/m(3)). Results of pilot tests, conf irming theoretical results, are presented in the paper.