2-27　Kinetic analysis of active oxidation in chloride environment

Abstract

In woody biomass or waste to energy plants, high temperature corrosion of boiler tubes, such as active oxidation which is caused by alkali chlorides has become a serious problem. In this study, the active oxidation of metal specimens in a chloride environment was evaluated with Thermogravimetry - Differential Thermal Analysis (TG-DTA) to elucidate the mechanisms and establish the highly practical solutions for the corrosion. As a result, the active oxidation had a dependency of the metal composition, and there was a correlation between increments of metal specimens with TG isothermal tests and decrements with immersion corrosion tests.