REMOVAL OF FINE PARTICLES FROM GASES IN A MAGNETICALLY STABILIZED FLUIDIZED FILTER

A magnetically stabilized fluidized filter has been used to remove aerosols from gaseous streams, and its performance has been compared to that of an equivalent fixed bed. The filter grains were magnetite particles in the 250 to 795 mum size range. Talc powder was used to prepare the test aerosols. The mode in which a number of variables, including the collector size, the applied magnetic field, the gas velocity, and the aerosol size, affect the degree of agreement between experimental and predicted data has been analyzed. The comparisons yielded good results, suggesting that the behavior of these filters may be predicted from the existing theory initially developed for fixed beds.