Coals.
Eight samples of hydrated brown coal were forwarded from the Tokomairiro coalfield, and without undergoing any previous process of drying, were analysed with the following results:—
Coke |
from 37 to 41 per cent., averaging 39 per cent. |
Fixed Carbon |
from 30 to 35.5 per cent., averaging 33 per cent. |
Volatile Hydrocarbons |
from 31 to 38 0 per cent., averaging 35.4 per cent. |
Ash |
from 2 to 9 per cent., averaging 5 per cent. |
Water |
from 22 to 30 per cent., averaging 27 per cent. |
Five samples of Lignite were sent at various times from different parts of the Green Island field, and without previous drying yielded the following results:—
Coke |
38 to 41 per cent., averaging 39 per cent. |
Fixed Carbon |
35 to 37 per cent., averaging 36 per cent. |
Volatile Hydrocarbons 30 to 37 per cent., averaging 34 per cent. |
Ash |
2.4 to 3.3 per cent., averaging 2.8 per cent. |
Water |
25.7 to 29 per cent., averaging 27 per cent. |
A sample of hydrated brown coal from the Kaitangata coalfield, without artificial drying, yielded:—
Coke |
42.1 per cent. |
Fixed Carbon |
38.7 per cent. |
Volatile Hydrocarbons |
38.9 per cent. |
Ash |
3.4 per cent. |
Water |
18.0 per cent. |
A specimen was sent by Mr. McArthur from Nightcaps in Southland. On analysis it showed:—
Coke |
45.3 per cent. |
Fixed Carbon |
41.8 per cent. |
Volatile Hydrocarbons |
317 per cent. |
Ash |
3.5 per cent. |
Water |
23.0 per cent. |