PRODUCTION METHOD OF REFORMED COAL
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United States of America Patent
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Issued Date -
Jun 9, 2016
app pub date -
Jul 16, 2014
filing date -
Jul 31, 2013
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Abstract
The purpose of the present invention is to increase the calorific value, and to obtain coal having further reduced mercury content. A drying step (S1) of drying low-rank coal (1) constituting coal to obtain dried coal (2), a dry deashing step of removing ash (6) from the dried coal (2) obtained in the drying step (S1) by a dry deashing apparatus, and a pyrolyzing step (S3) of pyrolyzing the deashed dried coal (3) obtained in the dry deashing step (S2) to obtain deashed pyrolyzed coal (4) are performed.
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