In this study, NaOCl was used to oxidize three kinds of Chinese coals, a lignite, a
subbituminous coal, and an anthracite.
In this study, lignite (ZT) collected from Zhaotong in Yunnan,
subbituminous coal (BLT) acquired from Bulianta in Inner Mongolia, and bituminous coal (XQ) from Xiqu in Shanxi, China, were served as the coal samples.
The high ash seems to be due to presence of these coal near margin of swamps and probably the paralic nature of these swamps give rise to high sulphur, according to calorific value the rank of these coal ranges for
subbituminous B to medium volatile bituminous, highest rank in Pakistan coals.
The company produces
subbituminous thermal coal with low sulfur content and an average heat value between 8,400 Btu and 9,350 Btu.
The plant will use
subbituminous coal imported from Indonesia.
* Northern Alaska-Slope Coal Province (coal: bituminous,
subbituminous)
Most guess it is anthracite, bituminous, and a few even get to
subbituminous, but most forget lignite.
For this study, one sample of lignite, three
subbituminous and one bituminous coal samples from the Czech Republic were selected.