Modelling of biomass combustion chemistry to investigate gas phase alkali sulfate formation

Abstract

This study is about the chemistry of biomass combustion, and modelling of combustion inside a boiler. Also, some implication are done as to detailed chemistry of the combustion. It explains the necessity of biomass combustion and states the problems in the regards of aerosol formation and corrosion inside the boiler walls. The alkali chlorides in the flue-gas will convert to alkali sulfates which are the main species of corrosion. The Previous studies have been mentioned and the advancements are explained. Moreover, homogeneous and heterogeneous mechanisms are explained and gas mechanisms resulting in alkali sulfates mentioned in the literature is summarized and simply visualized. The solver used for modeling is Cantera implemented in Python. The details of equilibrium and kinetics calculation are explained, and finally the results of the simulations are presented.