1. Potassium-chlorine interactions in a coal-fired magnetohydrodynamics system
- Author
-
Sheth, Atul C., Wang, Shuying H., and Holt, Jeffrey K.
- Subjects
Magnetohydrodynamic generators -- Research ,Coal-fired power plants -- Research ,Potassium -- Research ,Chlorine -- Research ,Environmental issues ,Science and technology - Abstract
Potassium is added as a seed material in magnetohydrodynamic (MHD) combustors to make combustion gases electrically conductive and to reduce SO2 emissions by reacting with sulfur oxides. Excess potassium also reacts with chlorine-containing species to reduce HCl emissions. Coal-fired flow facility measurements and bench-scale experiments showed that a K2/S ratio above the value of 1.2 is required to reduce or eliminate HCl emissions. However, the chlorides resulting from the reaction of HCl with K2 must also be removed during seed reprocessing operations. This will necessitate the development strategies to minimize chloride build-up.
- Published
- 1993