Development of an Equilibrium-based Model of Gasification of Biomass by Aspen Plus

Abstract Agricultural and forestry residues are usually processed as wastes; otherwise, they can be recovered to produce electrical and thermal energy through processes of thermochemical conversion, such us torrefaction, pyrolysis and gasification. Currently, the gasification of residual biomass for producing neutral CO 2 fuel for energy production is in development stage. In this context, this study proposes anequilibrium-based model, developed by the commercial software Aspen Plus, of a co-current gasifier fueled with agriculture residual, which allows estimating the chemical composition and theheating value of the syngas produced. The prediction of such model includes the main gaseous species, the yields of char and tar and describes the gasification process through the mass and energy balances, the water-gas shift (WGS) and the methanation reaction. The model validation was carried out through the comparison with experimental data, concerning two biomass with different moisture content and different gasification conditions, for sixteen cases compared. Overall, the comparison between the results of the simulations and the experimental data have shown a good agreement.

[1]  Martin Junginger,et al.  Bioenergy - A Sustainable and Reliable Energy Source , 2010 .

[2]  Colomba Di Blasi,et al.  Dynamic behaviour of stratified downdraft gasifiers , 2000 .

[3]  A. E. Ghaly,et al.  Mathematical modeling of a fluidized bed rice husk gasifier: Part I - model development , 2000 .

[4]  Wenqi Zhong,et al.  Simulation on gasification of forestry residues in fluidized beds by Eulerian-Lagrangian approach. , 2012, Bioresource technology.

[5]  Juan F. Pérez,et al.  Effect of biomass particle size and air superficial velocity on the gasification process in a downdraft fixed bed gasifier. An experimental and modelling study , 2008 .

[6]  Mohammad. Rasul,et al.  Biofuels Production through Biomass Pyrolysis —A Technological Review , 2012 .

[7]  Mohammad. Rasul,et al.  Pyrolysis of Municipal Green Waste: A Modelling, Simulation and Experimental Analysis , 2015 .

[8]  A. Bridgwater.  Special Issue: Overcoming barriers to bioenergy: outcomes of the Bioenergy Network of Excellence 2003-2009. , 2012 .

[9]  Philippe Mathieu,et al.  Performance analysis of a biomass gasifier , 2002 .

[10]  An Aspen Plus® tool for simulation of lignocellulosic biomass pyrolysis via equilibrium and ranking of the main process variables , 2015 .

[11]  D. F. Stewart,et al.  Computer simulation of a downdraft wood gasifier for tea drying , 2003 .

[12]  Francisco Jurado,et al.  Modelling of biomass gasifier and microturbine for the olive oil industry , 2012 .

[13]  Afsin Gungor,et al.  Modeling the effects of the operational parameters on H 2 composition in a biomass fluidized bed gas , 2011 .

[14]  Anastasia Zabaniotou,et al.  Simulation of Olive Kernel Gasification in a Bubbling Fluidized Bed Pilot Scale Reactor , 2012 .

[15]  Sudip Ghosh,et al.  Gasification of biomass in a fixed bed downdraft gasifier--a realistic model including tar. , 2012, Bioresource technology.

[16]  E. Meyer,et al.  Computer Simulation of the Mass and Energy Balance during Gasification of Sugarcane Bagasse , 2014 .

[17]  K. W. Ragland,et al.  Properties of wood for combustion analysis. , 1991 .

[18]  Shaharin Anwar Sulaiman,et al.  A simulation study of downdraft gasification of oil-palm fronds using ASPEN PLUS. , 2011 .

[19]  D. Giltrap,et al.  A steady state model of gas-char reactions in a downdraft biomass gasifier , 2003 .

[20]  Stefano Cordiner,et al.  Analysis of a SOFC energy generation system fuelled with biomass reformate , 2007 .

[21]  Jamal Chaouki,et al.  Simulation of circulating fluidized bed reactors using ASPEN PLUS , 1998 .

[22]  Mohammad. Rasul,et al.  A Numerical Investigation of Municipal Solid Waste Gasification Using Aspen Plus , 2014 .

[23]  F. Nocera,et al.  EVALUATION OF THE PERFORMANCE OF A SMALL BIOMASS GASIFIER AND MICRO-CHP PLANT FOR AGRO-INDUSTRIAL FIRMS , 2015 .

[24]  M. Grønli,et al.  A theoretical and experimental study of the thermal degradation of biomass , 1996 .

[25]  Francesco Patania,et al.  A robust numerical model for characterizing the syngas composition in a downdraft gasification process , 2016 .

[26]  N. Mahinpey,et al.  Simulation of biomass gasification in fluidized bed reactor using ASPEN PLUS. , 2008 .

[27]  Johan E. Hustad,et al.  A Small‐Scale Stratified Downdraft Gasifier Coupled to a Gas Engine for Combined Heat and Power Production , 2008 .

[28]  Sachio Ohta,et al.  Effect of Superficial Velocity on Tar from Downdraft Gasification of Biomass , 2005 .

[29]  I. Janajreh,et al.  Modeling of the entrained flow gasification: Kinetics-based ASPEN Plus model , 2015 .

[30]  F. Hamdullahpur,et al.  Mathematical Modeling of a Fluidized Bed Straw Gasifier: Part I—Model Development , 1997 .

[31]  T. N. Adams,et al.  A simple fuel bed model for predicting particulate emissions from a wood-waste boiler , 1980 .

[32]  A. Reynolds,et al.  The effect of air preheating in a biomass CFB gasifier using ASPEN Plus simulation , 2009 .

[33]  André Faaij,et al.  Bio-energy in Europe: changing technology choices , 2006 .

[34]  Mohammad. Rasul,et al.  Energy recovery from biomass by fast pyrolysis , 2014 .

[35]  A. E. Ghaly,et al.  Mathematical modeling of a fluidized bed rice Husk gasifier : Part II-Model sensitivity , 2000 .

[36]  K. N. Seetharamu,et al.  Prediction of performance of a downdraft gasifier using equilibrium modeling for different biomass materials , 2001 .

[37]  A. Sharma,et al.  Equilibrium modeling of global reduction reactions for a downdraft (biomass) gasifier , 2008 .

[38]  Henrik Thunman,et al.  Composition of Volatile Gases and Thermochemical Properties of Wood for Modeling of Fixed or Fluidized Beds , 2001 .