Optical Properties of Supercritical Toluene Extraction Residues Obtained from Turkish Coals
作者:
E.SULTAN VAYISOGLU,
KEITHD. BARTLE,
N.GAYE ERBATUR,
期刊:
Energy Sources
(Taylor Available online 1997)
卷期:
Volume 19,
issue 6
页码: 531-536
ISSN:0090-8312
年代: 1997
DOI:10.1080/00908319708908869
出版商: Taylor & Francis Group
关键词: macerals;residue optical properties;supercritical extraction
数据来源: Taylor
摘要:
Two Turkish coals of subbituminous C and high-volatile bituminous rank were subjected to supercritical toluene extraction at 400°C and 100 aim. The solid residues were examined microscopically in order to gain useful insight into the mechanisms involved in supercritical toluene extraction. The disappearance of liptinite macerals is a feature of the optical texture of both coals subjected to the extraction process. Residues of the two coals produced high-reflecting vitroplast. The amount of inertinite macerals in the residues increased and showed higher reflectance. No other alterations were observed for the inertinite macerals in the extraction residues.
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