Abstract
Coal is the most widely available fossil fuel energy resource. This work was carried out to compare the composition, Sulphur content and combustibility of the Nigerian and Nigerien coal samples. Coal samples were obtained from Enugu, Nigeria, Tahuoa and Agadez of Niger Republic. Results indicated that, coal samples from Tahuoa (RS/T) and coal from Agadez (RS/A) have highest percentage of fixed carbon (71.2% and 61.0% for Tohoua and Agadez respectively), while the coal from Enugu (RS/E), Nigeria, have the least percentage (49.2%) which made them to have high fuel ratio enabling them to be more combustible, as determined by the thermal efficiency test. The study revealed that the coal from Niger is of higher grade with ease of combustion and less smoke as found in the combustibility test.
 Keywords: Coal, Sulphur, fuel ratio, carbon content, combustion and thermal efficiency.
Highlights
Despite the abundant resources, the country is in short supply of electricity
The high Sulphur dioxi-de emissions caused by the utilization of coals as a major fossil fuel leads to worldwide environmental problems
Its Sulphur combines with oxygen to form Sulphur dioxide (SO2), which can contributes to pollution and acid rain
Summary
The country is in short supply of electricity. The presence of energy resources should expectedly catalyze economic growth, technological advancement and creates better living standards for the people. Coal is the most widely available fossil fuel energy resource. Sulphur in coal is present in both inorganic and organic forms.
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