Parameter | Unit | Value |
---|---|---|
Operation conditions | ||
 Temperature | K | 310.15 |
 Top pressure | Pa | 1.52 × 105 |
 Gas hold-up | m 3G m −3G+L | 0.15 |
 pH | – | 5.0 |
 Maximum ethanol concentrationa | mol m−3 | 1304 |
Bioreactor dimensions | ||
 Volume | m3 | 700 |
 Height | m | 20 |
 Aspect ratio | – | 3.0 |
 Diameter | m | 6.7 |
 Overhead space | % | 20 |
 Height of gas–liquid mixture | m | 16 |
Relevant gas properties for the mass transfer model (at 37 °C) | ||
Diffusivitiesb | ||
 O2  CO  H2  CO2 | m2 s−1 | 3.21 × 10−9 2.88 × 10−9 4.55 × 10−9 2.70 × 10−9 |
Henry’s coefficientc | ||
 CO  H2  CO2 | molS m−3 Pa−1 | 0.79 × 10−5 0.72 × 10−5 24.6 × 10−5 |