Two dimensional fluidised bed reactor: Performance of a novel multi-vortex distributor
作者： Hendrik Gideon Brink , Jean Saayman , Willie Nicol
DOI: 10.1016/J.CEJ.2011.09.077
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摘要: Abstract The influence of the distributor configuration on interphase mass transfer, gas axial dispersion and bubble size was studied in a pseudo 2-D fluidised bed reactor for two types configurations; novel multi-vortex (MV) with tubes directed vertically horizontally at different heights standard perforated plate (baseline). linear inlet velocity ( U 0 ) ranged between 0.1 m/s 0.35 m/s, air as fluidising medium ambient conditions. ozone decomposition reaction over Fe 2 O 3 impregnated FCC catalyst used an indirect measure performance FBR it found that MV causes significant improvement (15% average) conversion efficiencies all velocities tested. Bubble measurements (using separate techniques) indicated larger bubbles distributor, while visual bubbling to turbulent transition boundary c be lower than baseline distributor. bubble-emulsion transfer quantified using model derived by Thompson et al. [32] 52% higher In addition exhibited near plug flow characteristics exceeding , this not case
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