A study of the effect of high inlet solids loading on a cyclone separator pressure drop and collection efficiency

The effect of high inlet solid loadings on cyclone pressure drop and separa tion efficiency was studied. The particles used were FCC catalyst. An exten ded range of concentrations, up to 20 kg of solids/kg of gas was used, well beyond the loading range reported before. The average entrance velocities were 7, 18 and 27 m/s. The experiments showed that, in the range of concent rations tested, the cyclone pressure drop for the solids laden air flow was about 47% of that for clean air. A trend of increasing separation efficien cy with concentration was observed, up to 12 kg of solids/kg of gas, above which, the efficiency decreased. At test conditions, the collection efficie ncy was higher for the entrance velocity of 18 m/s than for 27 m/s. (C) 200 0 Elsevier Science S.A. All rights reserved.