Title:
Modelling of Biomass Combustion Chemistry to Investigate Gas Phase Alkali Sulphate Formation
Author(s):
Arabzadeh Moqadam, H., Gruber, T.
Document(s):
Paper
Poster
Abstract:
Along their way through the boiler, alkali chlorides in the flue-gas, which are the main species responsible for corrosion, may convert to alkali sulfates which are in general less corrosive species. Among corrosion problems these two species are also the main aerosol and hence, fine dust forming flue gas species in biomass combustion. The work presented deals with the modelling of gas phase chemistry during biomass combustion and especially with the sulfation process of alkali species. In doing so a kinetic combustion model is implemented in a plug flow reactor model in order to investigate the sulfation behavior of KCl and KOH during biomass combustion. The solver used for modelling is Cantera implemented in Python. The details of kinetics calculation are explained and finally the results of the simulations are presented and compared to existing experimental work. Additional a sensitivity analysis has been carried out and the effects of some properties on the final species are discussed.
Keywords:
alkali, biomass, boiler, combustion, corrosion, modelling
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Biomass Combustion in Large Utilities
Event:
25th European Biomass Conference and Exhibition
Session:
2BV.1.59
Pages:
702 - 708
ISBN:
978-88-89407-17-2
Paper DOI:
10.5071/25thEUBCE2017-2BV.1.59
Price:
FREE
