The Characterization of the Heating Properties of Briquettes of Coal and Rice Husk

Abstract

Abstract:In this work, smokeless briquettes of various compositions were produced using coal and rice husk, starch was used as the binder while Ca(OH 2 ) was the desulphurizing agent. The briquettes were produced in the following ratio of mixtures; coal and rice husk 100:0, 80:20, 60:40, 40:60, 20:80 and 0:100

Effect of Process Techniques on Three Feedstocks Mix on Briquette Performance Properties

“…18-26 min was recorded by Kabok et al [18] for carbonized FS-sawdust briquettes. 17.48 and 16.43 min were reported by Ikelle et al [16] when rice husks and corncobs respectively were blended with coal. Abdulkareem et al [1] used dial gauge hydraulic compression machine to produce briquettes from three feedstocks of charcoal, sawdust and sugarcane bagasse and recorded a lower value of 5.1-7.3 minutes.…”

“…Time reduced from cold start to hot start (Table 1) since briquettes were still hot from cold start phase. Time to boil for individual feedstocks was higher since values of 16 and 16.17 min were reported for corncobs and rice husks briquettes respectively [16]. Song, B.…”

“…[38] reported a value of 96 sec for ignition time of briquettes made from sugarcane bagasse. For the two feedstocks, Ikelle et al [16] recorded higher values than those of individual feedstocks for corncobs and rice husks blended with coal as 56.14 and 41 sec respectively. Kabok et al [18] reported ignition time of 2.7 min in a study where fecal sludge and sawdust were utilized as feedstocks.…”

“…Methods used by [16,36] to determine performance characteristics of the briquettes were adopted for this study (including specific fuel consumption, power output, burning rate, burning time and ignition time). The equations used were as in 2.2-2.5;…”

“…Results from these studies are much higher than what was observed from individual feedstocks. For instance, Ikelle et al [16] reported an ignition time of 27.20 sec for corncobs while rice husks had a value of 23.33 sec. Oyelaran, O.…”