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Axial Solid Holdup in a Circulating Fluidized Bed Plasma Reactor under Reduced Pressure
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  • Journal title : Korean Chemical Engineering Research
  • Volume 54, Issue 4,  2016, pp.527-532
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2016.54.4.527
 Title & Authors
Axial Solid Holdup in a Circulating Fluidized Bed Plasma Reactor under Reduced Pressure
Park, Sounghee;
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 Abstract
The effects of gas velocity and solid circulation rate on the axial solid holdup distribution have been determined in a 10 mm-I.D. 800 mm-high circulating fluidized bed plasma reactor under reduced pressure (1torr). Polystyrene polymer powder and nitrogen gas are used as solid and gas materials respectively. The change of solid circulation rate by a large gas flow rate of the riser (40~80 sccm) is also possible by a relatively small gas flow rate of the solid recirculation part (6.6~9.9 sccm). The solid circulation rate in the reactor under reduced pressure increases with increasing aeration velocity in the solid recirculation part. The axial solid holdup in the riser decreases from the dense at the bottom to the dilute phase at the top section of the riser. Solid holdups at the axial positions in the riser increase linearly with increasing solid circulating velocity. From these results, we could determine the position of plasma load for good plasma ignition, maintain and plasma reaction.
 Keywords
Circulating Fluidized Bed;Plasma;Reduced Pressure;Vacuum;Solid-holdup;
 Language
Korean
 Cited by
 References
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