Title:
A Thermochemical Approach Based on Phase Diagrams to Characterize Biomass Ash and Select the Optimal Thermal Conversion Technology
Author(s):
De Fusco, L., Defoort, F., Jeanmart, H.
Document(s):
Paper
Abstract:
In the recent years, a growing interest for opportunity solid fuels, such as short-rotation energy crops and agro biomass, is observed. The combustion (or gasification) of these fuels often leads to operational issues due to the presence of liquid matter, including agglomeration or slag formation in reactors. The characterization of these fuels concerning their ash behavior is still challenging. In fact, simplified and flexible tools for the fuel screening and applicability are based on semi-empirical approaches. In this study we propose a methodology based on thermodynamic equilibrium computations of ternary phase diagrams of the main oxides in ash, to support an integrated fuel characterization strategy. In the plots the liquidus and solidus (respectively, 100% and 0% liquid limits) isotherms are drawn. From these results, preliminary information on the appropriate thermal conversion technology to be used for specific solid fuel can be deduced.
Keywords:
agglomeration, slagging, ashes, characterization
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass Combustion in Large Utilities
Event:
25th European Biomass Conference and Exhibition
Session:
2AO.8.3
Pages:
408 - 411
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2AO.8.3
Price:
FREE
