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Table 2 Calculated energy inputs during pretreatment of softwoods

From: A mild thermomechanical process for the enzymatic conversion of radiata pine into fermentable sugars and lignin

 

This process

Steam explosion [60]

SPORL [61]

Wood

Radiata pine

Spruce

Lodgepole pine

Thermal treatment

 T, °C

173

215

180

 Solids content, %

40

40

25

 Pretreated chip yield, %

85

 

61

Energy, GJ/ODT wood

 Chipping

0.18

0.18

0.18

 Steaming

1.21

1.58

2.33

 Disc refining

0.37

–

0.76

 Ball-milling

1.05

–

–

 Total

2.81

1.76

3.27

  1. The chipping energy was taken from Ref. [62] and the attrition energies are corrected for solids yields following steaming
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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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