Research on Pressure Swing Adsorption of Resin for Treating Gas Containing Toluene

This research took granular activated carbon and resin as adsorbent separately, adopting pressure swing adsorption to purify gas containing low concentration toluene. Results from this trial show: NDA-150 resin has the optimum effect of adsorption for air containing toluene. The optimum adsorption rates of resin and activated carbon are 92.3% and 83.5% separately, and the optimum adsorption flux of resin and activated carbon are 5 L/min and 4 L/min respectively, the best time for adsorption both are 10 min, pressure for desorption is -0.05 Mpa, and the optimal time for desorption both are 10 min. Seen from comparison of trial results, resin for treating air containing toluene as adsorbent is better than activated carbon.