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Syngas fermentation to bioethanol 205

Figure 6.5 Schematic diagram of membrane-based system reactor.

6.2.5 Membrane-based system reactor
The schematic design of membrane-based system reactor is shown in
Fig. 6.5. It is compared to the fuel processor, which generates H 2 by the
dilution of CO 2 and similar types of gases. This type of fermenter allows
the fuel cell to operate at high-voltage electricity and fuel consumption
factors, which reduces the degradation rates due to the CO harming. This
type of bioreactor has major advantages to achieving a maximum yield
and reaction rate. It has the maximum tolerance to toxic compounds that
exist in the syngas.

6.3 Microbial pathway for acetic acid and ethanol
production
The syngas fermentation for the production of acetic acid and bioethanol,
CO, H 2 , and CO 2 , followed a series of elementary chemical reactions