Ong Lu Ki, Alfin Kurniawan, Chun Xiang Lin, Yi-Hsu Ju, Suryadi Ismadji
In this work, liquid biofuel (bio-oil) was produced by pyrolizing cassava peel. The experiments were conducted isothermally in a fixed-bed tubular reactor at temperatures ranging from 400 to 600°C with a heating rate of 20°C/min. The chemical compositions of bio-oil were analyzed by a gas chromatography mass spectrometry (GC-MS) technique. For the optimization of liquid product, temperature was plotted to be the most decisive factor. The maximum yield of bio-oil ca. 51.2% was obtained at 525°C and the biofuel has a gross calorific value of 27.43MJ/kg. The kinetic-based mechanistic model fitted well with experimental yield of pyrolysis products with the mean squared error (MSE) of 13.37 (R2=0.96) for solid (char), 16.24 (R2=0.95) for liquid (bio-oil), and 0.49 (R2=0.99) for gas. © 2013 Elsevier Ltd.
Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Kalijudan 37, Surabaya 60114, Indonesia; School of Chemical Engineering, University of Queensland, Brisbane, QLD 4072, St. Lucia, Australia; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106-07, 43, Sec. 4, Keelung Road, Taiwan