Coal processing method by using characteristics of sub-critical and supercritical water
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United States of America Patent
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Apr 21, 2015
Grant Date -
Dec 15, 2011
app pub date -
Dec 17, 2009
filing date -
Dec 19, 2008
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Abstract
A coal processing method includes adding coal powder, water and catalyst into a series of tandem reactors and processing therein, wherein the coal powder, water and catalyst are added into the first reactor of the series of tandem reactors; and the temperature and pressure of the series reactors is alternatively arranged in sub-critical state and supercritical state of water from the first reactor, the total product from the previous reactor is used as the feed of the next reactor without any further separation.
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