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ANALYSES OF COAL FROM BRUNEI DARUSSALAM

Sample
Number
and Locality
Proximate analysis
(weight percent)
Ultimate analysis
(weight Percent)
As Received Dry, ash-free As Received Dry, ash-free
Moisture Ash

Ash
Color

Volatiles

Fixed
Carbon

Volatiles

Fixed
Carbon

C

H

N

S

O

C

H

N

S

1. Kianggeh
Valley
- - - - - - - 70.3 5.4 0.7 1.2 20.0 72.0 5.5 0.7 1.2 20.6
2. Kianggeh
Valley
- - - - - - - 54.3 5.0 1.0 1.1 24.2 63.3 5.9 1.2 1.3 28.3
3.Brooketon Colliery 11.5 1.6 - 40.2 46.7 46.5 53.5 - - - - - - - - - -
4.Kianggeh
Valley
12.8 2.5 Brick
red
39.8 44.9 47.0 53.0 59.5 3.6 1.1 2.3 18.2 70.3 4.3 1.3 2.7 21.4
5.Kianggeh
Valley
10.6 5.1 Buff 41.8 42.5 49.6 50.4 60.4 4.5 1.2 1.2 17.0 71.7 5.35 1.5 1.4 20.0
S. 5492 Tutong
Valley
14.3 3.6 Brown 39.4 42.7 48.0 52.0 58.3 4.38 1.11 2.21 16.1 71.03 5.34 1.35 2.69 19.59
S. 5493
Tutong Valley
9.5 4.2 Dull,
brick red
38.7 47.6 44.9 55.1 64.1 4.9 1.36 0.72 15.22 74.27 5.68 1.58 0.83 17.64
S. 5889
Ingei River
9.4 2.2 Buff 44.1 44.3 49.9 50.1 1.88
S. 5593
Topi River
7.4 1.9 Buff 43.0 47.7 47.4 52.6 0.82
S. 5597
Topi River
6.8 1.5 Buff 45.1 46.6 49.2 50.8 0.36
Tutong
(brown lignite)
28.6 5.9 31 34.5
Tutong
(brown lignite)
19 10.5 35.3 35.2
Tutong
(brown lignite)
19.9 10.3 38.9 30.8

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