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Table 1 Stirred-tank reactor characteristics

From: Scale-up of anaerobic 1,3-propanediol production by Clostridium butyricum DSP1 from crude glycerol

Dimension/operating condition Scale
Nominal volume, V (L) 6.6 42 150
Working volume, VL (m3) 0.005 0.030 0.120
Impeller tip speed, TS (m/s) 0.20096 0.20096 0.20096
Agitation speed, N (rmp) 60.00 36.57 26.50
Number of impeller 2 3 3
Impeller type Rushton Rushton Rushton
Liquid height, HL (m) 0.25 0.46 0.72
Impeller diameter, DI (m) 0.064 0.105 0.150
Reactor diameter, DT (m) 0.16 0.29 0.45
Reactor hight, HT (m) 0.34 0.63 0.98
HT/DT 2.12 2.17 2.18
DI/DT 0.40 0.36 0.33
Inoculum volume, Vx (10%) (m3) 0.0005 0.0030 0.0114