Extraction of Taiheiyo coal with supercritical water--HCOOH mixture

T. Adschiri; T. Sato; H. Shibuichi

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Extraction of Taiheiyo coal with supercritical water--HCOOH mixture

机译：超临界水-HCOOH混合物萃取太黑洋煤

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Taiheiyo coals were extracted with supercritical toluene (SC-toluene) (653 K, 20 MPa), supercritical water (SCW) (653 K, 35 MPa) and formic acid (HCOOH)--SCW mixed solvents (653 K, 35 MPa) using a semi-batch type system. The results clearly indicate that the coal conversion (= 1 -- weight of residual coal (daf/weight of loaded coal (daf) and the liquid yield (= weight of liquid extracts/weight of loaded coal) in HCOOH--SCW were higher than those in SCW and SC-toluene. A considerable portion of coal is thus converted into light oils probably through hydrolysis and hydrogenation in HCOOH--SCW. We conducted another series of experiments for direct in situ observation of coal conversion in SCW and HCOOH--SCW using a diamond anvil cell (DAC). In HCOOH--SCW, the effective and rapid hydrogenation of coal with HCOOH occurs mainly at the early stage of the reaction.

机译：使用超临界甲苯（SC-甲苯）（653 K，20 MPa），超临界水（SCW）（653 K，35 MPa）和甲酸（HCOOH）-SCW混合溶剂（653 K，35 MPa）提取太黑洋煤使用半间歇式系统。结果清楚地表明，HCOOH-SCW中的煤转化率（= 1-剩余煤重量（daf /载煤重量（daf））和液体收率（=液体提取物重量/载煤重量）更高因此，相当一部分煤炭很可能通过HCOOH-SCW中的水解和氢化而转化为轻油，我们进行了另一系列实验，以便直接观察SCW和HCOOH- -使用金刚石砧池（DAC）的SCW在HCOOH--SCW中，煤与HCOOH的快速有效加氢主要发生在反应的早期。

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来源
《Fuel》 |2000年第4期|p.243-248|共6页
作者
T. Adschiri; T. Sato; H. Shibuichi;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类燃料化学工业（总论）;热力工程、热机;
关键词
Supercritical water; Coal conversion; Formic acid;

机译：超临界水;煤炭转化;甲酸;

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Extraction of Taiheiyo coal with supercritical water--HCOOH mixture

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