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Table 4 Current and Future scenario technology parameters

From: A spatially explicit whole-system model of the lignocellulosic bioethanol supply chain: an assessment of decentralised processing potential

Parameter

Unit

Current

Future

Crop type

-

Straw residue

SRC hybrid poplar

Crop yield

odt ha-1 year-1

5

25

Pretreatment method

-

Dilute acid

CO2 explosion

Process integration

-

SSF

CBP

Pretreatment conversion*

%cellulose

75.0

98.0

Fermentation conversion

%sugars

95.0

95.0

Ethanol yield**

lEtOH odt-1

281

382

Process titre

wt%EtOH

5.0

35.0

Process hot utility

MJ MJEtOH-1

0.17

0.00

Distillation hot utility***

MJ MJEtOH-1

0.26

0.20

  1. *Assumes equal conversion of both cellulose and hemicellulose fractions
  2. **Pure ethanol product
  3. ***Distillation includes both Stripping and Rectification stages for the Current technology