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Table 6 Ultimate analysis and physical properties of the char from SCG through TCR® and other technologies

From: Thermo-Catalytic Reforming of spent coffee grounds

System

Ultimate analysis (wt%)

H/C ratio

HHV (MJ/kg)

Ash (wt%)

References

C

H

N

O (diff.)

S

TCR® at 500 °C

78.6

2.4

3.8

6.3

0.12

0.03

30.8

8.6

 

TCR® at 600 °C

80.0

1.2

3.0

2.1

0.20

0.015

29.5

12.8

 

TCR® at 700 °C

70.6

1.4

1.8

2.6

0.38

0.019

25.5

23.2

 

Slow pyrolysis

80.0

3.0

5.0

12.0

0.037

31.9

23.0

Tsai et al. (2012)

Fast pyrolysis at 500 °C

75.3

3.5

4.4

11.1

0.12

0.046

29.1a

5.5

Kelkar et al. (2015)

  1. aCalculated value