Sewage material in coal liquefaction
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United States of America Patent
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May 28, 2013
Grant Date -
Apr 19, 2012
app pub date -
Jun 22, 2011
filing date -
May 24, 2007
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Abstract
The present disclosure provides methods and systems for coal liquefaction using a sewage material. A method of obtaining a de-ashed coal extract includes exposing a coal to a sewage material in the presence of a coal-derived solvent to form a slurry, elevating the temperature of the slurry to facilitate liquefying the coal and liberating a volatile matter, and separating the insoluble components from the slurry to obtain a de-ashed coal extract, wherein the coal extract is suitable for downstream processing.
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