Disposition of chlorine-containing species in an MHD coal-fired flow facility

Chlorine-containing species in an MHD Coal-Fired Flow Facility (CFFF) could decrease plasma conductivity, release chloride gas emission, and cause fouling and corrosion of downstream components. Therefore, this thesis work has been conducted to characterize the disposition of chlorine-containing species under CFFF conditions: to identify parameters affecting gas phase chloride emission; to propose possible reaction pathways in the CFFF system; and to rationalize chlorine mass balance across CFFF. To achieve the above-mentioned objectives of this research work, extracted gas samples and bulk solid samples were taken at certain major MHD downstream components. Equilibrium concentrations of chlorine-containing species in CFFF were calculated using NASA-SP 273 computer code. Bench Scale experiments were then carried out by simulating MHD downstream test conditions. The results of the test sampling, the theoretical calculations, and the bench scale experiments were compared. Based on the comparison results, possible disposition and chlorine-containing species in the CFFF system were given in this thesis. An overall chlorine mass balance in the CFFF was also attempted.