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. 2013 Oct 2;6:141. doi: 10.1186/1754-6834-6-141

Table 3.

Energy balance and energy ratio of sorghum ethanol pathways

  I II III(a) III(b) IV V(a) V(b)
Energy balance, MJa/Liter
10.4
17.0
16.8
17.2
12.5
15.4
15.7
Energy ratio 2.0 4.9 4.7 5.2 2.4 3.6 3.8

a Lower heating value.