A new two-stage process for supercritica
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Tadafumi Adschiri; Shun-ichi Tanaka; Shinji Abe; Kunio Arai
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Article
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1996
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Elsevier Science
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English
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A new two-stage process for supercritical toluene extraction of coal is proposed that achieves conversion of 60 wt% and a liquid yield of 45 wt%. The first stage consists of pretreatment of the coal with tetralin liquid and vapour with a prescribed temperature-pressure-solvent programme (TPSP). In t