ABSTRACT
A slurry is de”ned as a ˜uid mixture of a pulverized solid with a liquid, usually water. The term “coal slurry,” therefore, includes all mixtures of coal and water that can ˜ow
as a ˜uid. There are four main types of high-percent-solid coal slurries discussed in the literature, with different characteristics depending on the application:
1. Coal-water slurry fuels: High-percent-solid slurries that are stable against settling, so they can be pumped, stored, handled, and burned much like heavy fuel oil. Coal-water fuels have about half the heating value of fuel oil, and because of their water content they burn cooler than pulverized coal, leading to lower production of nitrogen oxides.
