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The research studies the effects of corn cob biomass on the properties of coal briquette. Different samples of coal briquettes are made by mixing different volume of corn cob biomass with coal fines, at the ratio of 0: 100, 10: 90, 20: 80, 30: 70, using calcium hydroxide as the desulphurising agent, tapioca starch as binders. The properties of coal briquettes such as calorific value, porosity index, compressive strength and bulk density was studied, and compared with the control (coal briquettes).
The results of the research shows the bio-coal briquettes have higher porosity index values than the coal briquettes, lower calorific value than the coal briquettes, lower compressive strength than the coal briquettes, lower bulk density than the coal briquettes. To be more exact, the calorific value, compressive strength and bulk density of the bio-coal briquette decreases as the percentage content of biomass increases from 10% to 30%, while the porosity index of bio-coal briquette increases as the percentage content of biomass increases.