Figure 9.2 Example of partial pressure
saturation curves.
Figure 9.3 Schematic diagram of a
packed bed solid gas bioreactor
working at atmospheric pressure.
corresponding to the saturation pressure above the pure compound. In order to calculate
the composition of the gas, the different molar flows for each compound (carrier+
substrates+water) have to be known. The molar carrier flow in each line is calculated
using the volumetric normalised flows of carrier gas used for saturation:
Then, knowing the molar flow of the carrier gas it is possible to calculate the different
molar flows leaving the saturation flasks by the formula using the saturation pressure:
with determined at the temperature of saturation.
After mixing the different lines, the partial pressure of each compound in the gas
entering the bioreactor is determined using:
Solid/gas systems, theory and applications 267