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. 2021 Feb 16;14:44. doi: 10.1186/s13068-021-01896-z

Table 5.

Energy input at the stages of transporting sweet sorghum and bio-ethanol

Items Sweet sorghum transport stagea Bio-ethanol transport stageb
Transport method Road Road Railway
Distance (km) 88 100 500
Energy intensity (MJ/t km) [30] 2.21 2.21 0.077
Energy input (MJ/t sweet sorghum) 194.48 221 38.5
(MJ/t ethanol) 311.68 3376 616

aThe main mode of transportation in sweet sorghum transport stage is road

bThe main mode of transportation in bio-ethanol transport stage is combination of both road and railway