OP-II-3

OP-III-A-11INVESTIGATION ON THERMOCHEMICAL CONVERSION OFPELLETIZED JATROPHA RESIDUE AND GLYCEROL WASTE USINGSINGLE PARTICLE REACTIVITY TECHNIQUEAtong D. 1 , Soongprasit K. 2 , and Sricharoenchaikul V. 31 National Metal and Materials Technology Center, Thailand science Park,Pathumthani, 12120, Thailand2 Department of Materials Science, Faculty of Science, Chulalongkorn University,Pathumwan, Bangkok, Thailand, 10330, Thailand3 Department of Environmental Engineering, Faculty of Engineering, ChulalongkornUniversity, Bangkok, 10330, Thailand, viboon.sr@chula.ac.thAdverse environmental effects resulting from fossil fuel usage as well asforeseeable conventional energy depletion lead to the exploration of alternative fuelmaterials especially the renewable ones. In this work, characterization of syntheticfuel material formed by pelletization of Jatropha residue (physic nut) using glycerolwaste as a binder was carried out in order to investigate the feasibility of utilizingthese waste materials as another renewable energy source [1]. Both wastes are byproducts from biodiesel manufacturing process. Synthetic fuel materials of Jatropharesidue mixed with 0-50% glycerol waste were formed to length of about 11 mm anddiameter of about 13 mm under pressure of 7 MPa in a hydraulic press. Maximumcompressive stress (2.52×105 N/m 2 ) of the fuel pellet occurred at 10% glycerolwaste. Thermal conversion characteristic of solid fuel was studied by using singleparticle reactivity testing scheme at temperature of 500-900°C under partial oxidationatmosphere As shown in Figure 1.1) Gas cylinders, 2) Temperaturecontroller, 3) Quartz sample holder, 4)Furnace chamber, 5) Staging chamber, 6)Nichrome wire, 7) Quartz window, 8)Balance, 9) Camcorder, 10) Data logger28647910N 2Air5exhaust13Fig. 1 Schematic of single particle reactivity testing apparatus.In general, higher glycerol content in solid fuel as well as oxygen concentration inreacting gas resulted in greater decomposition rate from 0.006-0.110 g/sec. Burningstarted with a relative short drying phase, followed with a longer pyrolysis time andthereafter the dominated char combustion time which took around 35-57% of total171