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Official Journal of the Japan Wood Research Society

Table 5 Heating values and viscosities of glycerol fuels and effect of repeated delignification

From: Delignification of softwood by glycerol from biodiesel by-product I: model reaction using glycerol and fatty acid sodium soap mixture for pretreatment on bioethanol production

Repeat count

Heating value

Viscosity

HHV [MJ/kg]

LHV [MJ/kg]

Absolute viscosity [Pa s]

Viscosity index [–]

Pure glycerol

17.8

15.8

0.3

0.99

20 wt % C18:1 Na glycerol

21.7

20.0

ND

ND

1

20.5

19.2

7.6

0.73

2

23.1

21.2

31.3

0.66

3

25.0

23.3

ND

ND

  1. Viscosity could not be measured because of solid state at 40 °C
  2. ND not detected