Enhancing the Heating Properties of Coal Briquette Blending Rice Husk

In this work, smokeless briquettes of coal and rice husk were produced and starch was used as the binder, calcium-hydroxide(Ca(OH)2) was the desulphurizing agent and the different type of briquette samples were produced prepared by different composition of coal and rice husk in subsequent ratio100:00, 80:20, 60:40, 20:80, and 00:100. The briquettes were produced mechanically using a manual briquetting machine through pressure maintained at 5MPa. Results of the proximate analysis showed that of the dissimilar compositions that 50% coal,50% rice husk briquettes with following values for ash content 27.45 %, fixed carbon 38.83%, moisture content 3.85%, density 0.475g/cm3, volatile matter 22.18%, porosity index 59.96%, calorific value 132.93KJ/g, water boiling test 3.15mins, ignition time 35.06secs, burning time 22.43mins and sulphur content 7.05% exhibited optimum combustible quality when compared through other compositions of briquettes produced. In this we calculate the maximum temperature and cost of fuel and transportation cost, smoke, flame, and decrease of ignition temperature. The briquette present improved properties with regard to combustible property when judge against to the other briquettes were produced with same binder but various composition.