chambers, coal grinding equipment has been around for many years. Ball mills are usually used and can be sized as needed, the final product is like talcum powder. I think waste heat from the boiler is used to reduce moisture. I can't see that it's practical to use a KDS except for extremely small operations. Static electricity may be a problem with the KDS since the coal powder is explosive. Just my semi-educated opinion! LOL!
OT: Looking at what the "Big Boys" are doing, did a search for "coal" on the GE website and came up with 612 "hits". Take a look around their site for alternative energy and ongoing projects, quite a bit of info there including some Malaysia projects, 1825 "hits" (all type biz) on their site search engine. Also big in nuclear. Point is, the big boy energy and equipment companies aren't sitting on their hands, they are working toward sensible solutions so they can survive in the future.
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