367597 General Thermodynamic Modeling of Gasification of Diverse Biomasses

Monday, November 17, 2014
Galleria Exhibit Hall (Hilton Atlanta)
Alexandra Slimmer, Chemical Engineering, Missouri University of Science & Technology, Rolla, MO, Gholamreza Zahedi, Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, MO and Muthanna H. Al-Dahhan, Chemical Engineering Dept., Missouri University of Science & Technology, Rolla, MO

A thermodynamic equilibrium approach is used in a gasification process in order to create a model and program, via MATLAB, that calculates the composition of the product gas and the gasification temperature. The model is flexible, taking in diverse biomass feedstock, as well as a variety of gasification agents, in order to apply to a wide variety of gasification conditions. Through equilibrium reactions and mass balances, the syngas composition is calculated. Then, energy balance computes the gasification temperature using an iterative method. The model and program were created and then verified through convergence and validated with experimental data from other papers. Finally, a parametric study was completed in order to examine the effects on syngas composition caused by gasification temperature, biomass moisture content, amount of air input, and carbon content of the feedstock. The model will have more dimensions added, including the kinetics of the gasification process, and  be used to optimize the process of converting municipal waste to energy and syngas, which is a prime example of converting waste to wealth.

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