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92 Biofuels for a More Sustainable Future
Fig. 4.11 Mass and energy balances for the cellulosic butanol production process.
9 Thermochemical conversion processes
For the sake of clarity and simplicity, the thermochemical step will be sub-
divided into pretreatment, syngas production, syngas conditioning, and
Fischer-Tropsch synthesis. Fig. 4.12 shows the different steps in accordance
with the processes. Mass and energy balances are also presented for the pro-
cessing of 1 tonne of bagasse. These balances consider the utilization of
syngas according to the Case Base (BSE), where 50% of the syngas is sent
to the BIG-GTCC cycle and the remaining 50% is sent to FT synthesis.
Fig. 4.12 Processes employed in the thermochemical route.
