Numerical Investigation of the Effects of Thermo-physical Properties on Tar Intra-particle Secondary Reactions during Biomass Pyrolysis

作者: Pious O. Okekunle

DOI:

关键词:

摘要: In this study, a coupled transport and chemical kinetic model was used to simulate the effects of biomass thermo-physical properties on intra-particle secondary reactions during convective-radiative pyrolysis wood cylinder ( ? in thermally thick regime. Wood modeled as one-dimensional porous solid. Solid mass conservation equations were solved by first-order Euler Implicit Method. Finite volume method discretize equation for tar gas, energy pressure equation. Tri-Diagonal Matrix Algorithm (TDMA) solve resulting simultaneous equations. Findings revealed that influence extent reactions, conversion time product yield distribution. Simulation results also showed density has highest reactions.Keywords: Biomass, pyrolysis, properties, reactions1. Introduction

参考文章(20)
L Fagbemi, L Khezami, R Capart, Pyrolysis products from different biomasses: application to the thermal cracking of tar Applied Energy. ,vol. 69, pp. 293- 306 ,(2001) , 10.1016/S0306-2619(01)00013-7
Hirotatsu Watanabe, Ken Okazaki, Pious O. Okekunle, Analysis of Biomass Pyrolysis Product Yield Distribution in Thermally Thin Regime at Different Heating Rates Mathematical theory and modeling. ,vol. 3, pp. 29- 34 ,(2013)
X.T. Li, J.R. Grace, C.J. Lim, A.P. Watkinson, H.P. Chen, J.R. Kim, Biomass gasification in a circulating fluidized bed Biomass & Bioenergy. ,vol. 26, pp. 171- 193 ,(2004) , 10.1016/S0961-9534(03)00084-9
Toshiaki Hanaoka, Seiichi Inoue, Seiji Uno, Tomoko Ogi, Tomoaki Minowa, Effect of woody biomass components on air-steam gasification Biomass & Bioenergy. ,vol. 28, pp. 69- 76 ,(2005) , 10.1016/J.BIOMBIOE.2004.03.008
Ian Narváez, Alberto Orío, Maria P. Aznar, José Corella, Biomass gasification with air in an atmospheric bubbling fluidized bed. Effect of six operational variables on the quality of the produced raw gas Industrial & Engineering Chemistry Research. ,vol. 35, pp. 2110- 2120 ,(1996) , 10.1021/IE9507540
Won Chan Park, Arvind Atreya, Howard R. Baum, Experimental and theoretical investigation of heat and mass transfer processes during wood pyrolysis Combustion and Flame. ,vol. 157, pp. 481- 494 ,(2010) , 10.1016/J.COMBUSTFLAME.2009.10.006
Pious O. OKEKUNLE, Hirotatsu WATANABE, Teeranai PATTANOTAI, Ken OKAZAKI, Effect of Biomass Size and Aspect Ratio on Intra-Particle Tar Decomposition during Wood Cylinder Pyrolysis Journal of Thermal Science and Technology. ,vol. 7, pp. 1- 15 ,(2012) , 10.1299/JTST.7.1
D.L. Pyle, C.A. Zaror, Heat transfer and kinetics in the low temperature pyrolysis of solids Chemical Engineering Science. ,vol. 39, pp. 147- 158 ,(1984) , 10.1016/0009-2509(84)80140-2
B.V Babu, A.S Chaurasia, Modeling for pyrolysis of solid particle: kinetics and heat transfer effects Energy Conversion and Management. ,vol. 44, pp. 2251- 2275 ,(2003) , 10.1016/S0196-8904(02)00252-2
Shiguang Li, Shaoping Xu, Shuqin Liu, Chen Yang, Qinghua Lu, Fast pyrolysis of biomass in free-fall reactor for hydrogen-rich gas Fuel Processing Technology. ,vol. 85, pp. 1201- 1211 ,(2004) , 10.1016/J.FUPROC.2003.11.043