CHARACTERISATION OF PYROLYSIS OIL DERIVED FROM TEAK TREE SAW DUST AND RICE HUSK

• Main Authors: M. BARDALAI, D. K. MAHANTA
• Format: Article
• Language: English
• Published: Taylor's University 2018-01-01
• Series: Journal of Engineering Science and Technology
• Subjects: Pyrolysis oil; Thermogravimetric analysis; Teak tree; Rice husk; Atomic ratio
• Online Access: http://jestec.taylors.edu.my/Vol%2013%20issue%201%20January%202018/13_1_17.pdf

The teak tree saw dust (TTSD) and rice husk (RH) were pyrolysed in a fixed bed reactor at the temperature of 450°C. The feedstock particle sizes for both the biomasses were in the range of 0.5-1.0 mm. About 33.3 and 35 wt% liquid yields were found from TTSD and RH respectively. The calorific values were recorded as 23.41 and 20.01 MJ/kg for TTSD and RH bio-oils respectively, which are slightly higher than their respective biomasses. The kinematic viscosities of the bio-oils were found to be in the range of 6.8-8.1 cSt, which are quite lower than many other bio-oils. The pH value of TTSD bio-oil (i.e., 3.4) was slightly higher than the RH bio-oil (i.e., 2.8). The bio-oils indicated acidic nature with low pH value, e.g., 2.8-3.4. The bio-oils contained mostly the carboxyl and hydroxyl functional groups to represent phenols and alcohols. Both TTSD and RH have the potential to produce pyrolysis oil; however, it requires certain upgradations to make it useful for engines.