Yoon.pdf · El k horn No. 3 coal , which assayed 12% ash and 0.25% pyritic sulfur in the feed. the...
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Yoon.pdf · El k horn No. 3 coal , which assayed 12% ash and 0.25% pyritic sulfur in the feed. the product, assayed only O. 03% pyri In general , the process gave very high combusti