Author(s)

M. Clausse, J. Bonjour & F. Meunier

Abstract

Removal of pollutant mixtures from air streams with an indirect heating and cooling temperature swing adsorption process M. Clause, J. Bonjour & F. Meunier CNAM - Labomtoire du Froid (E.A. 1408), France Abstract A process of pollutant removal from air streams by means of TSA (Temperature Swing Adsorption) cycles is presented. TSA processes use a column filled with an adsorbent and consist of two main phases: an adsorption step during which the pollutants are adsorbed, followed by a desorption step during which the column is heated up in order to clean the bed before the next adsorption step. In this experimental study, the column includes an internal heat exchanger that allows indirect cooling and heating of the adsorbent bed which is made of activated carbon. The air stream is simulated by dry nitrogen and the pollutants are C02 and ethane (simulating a VOC) at various concentrations. Experiments with a mixture of pollutants proved that the column allows to separate efficiently ethane and COz

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