Substantial upgrading of a high-ash lignite by hydrothermal treatment followed by Ca(OH)2 digestion/acid leaching
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DOI: 10.1016/j.fuel.2018.02.034
Abstract: Abstract Hydrothermal treatment (HT) is traditionally used as an approach for upgrading lignite. But this approach has a limited effectiveness for upgrading high-ash lignite. In this study, we explore a new method for substantial upgrading… read more here.
Keywords: lignite; treatment; upgrading high; digestion ... See more keywords