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Table 2 Cellulosic ethanol production by ton of processed biomass

From: Production of cellulosic ethanol from steam-exploded Eucalyptus urograndis and sugarcane bagasse at high total solids and low enzyme loadings

Data

Sugarcane bagasse

E. urograndis

Steam explosion (% STE-WI)a

64.0

61.4

Glucose release after hydrolysis (g L−1 Glc)b

103

125

Total amount of glucose release (g kg−1 Glc)

515

625

Fermentation efficiency (%)c

87.1

88.1

Ethanol production per ton (L t−1)

178.0

218.5

Theoretical production per ton (L t−1)

204.4

248.0

Biomass productivity (t ha−1 year−1)d

20.16

25.92

Ethanol productivity from 1st generation

5760.0 L ha−1 year−1

–

Ethanol productivity from 2nd generation (L ha−1 year−1)

1794.5

2832.2

Total ethanol productivity (L ha−1 year−1)

7554.5

2832.2

  1. aSugarcane bagasse and eucalypt were pretreated at 195 °C for 7.5 min and at 210 °C for 5 min, respectively
  2. bHydrolysis of steam-treated substrates in a Labfors 5HT reactor using 20 wt% TS and 62.5 mg of Cellic CTec3 g−1 TS at 50 °C for 72 h (2.5 L total volume)
  3. c1 g L−1 of S. cerevisiae Thermosacc Dry at 37 °C for 12 h
  4. dData available from Comércio Ambiental [36] and Carvalho et al. [5] for E. urograndis chips and sugarcane bagasse, respectively