EFFECT OF PRESWELLING ON SOXHLET AND SUPERCRITICAL GAS EXTRACTION OF A TURKISH LIGNITE
作者： E.H. Şimşek , A. Bilgesü , A. Olcay
DOI: 10.1080/08843759508947695
关键词: Supercritical fluid 、 Organic chemistry 、 Solvent extraction 、 Chemical engineering 、 Yield (chemistry) 、 Tetrahydrofuran 、 Swelling 、 Supercritical fluid extraction 、 Solvent 、 Extraction (chemistry) 、 Chemistry
摘要: ABSTRACT Preswelling of Mugla-Yatagan lignite with THF (Tetrahydrofuran) followed by removal the swelling agents results in higher extract yields, probably because solvent molecules had easier access to expanded pore structure swollen lignite. On other hand, yields supercritical same sample indicated that during agent collapsed. The show might have been obtained combined effect and power mixed solvent,i.e., mixture extraction fluid.
sci-hub.se 参考文章(13)
Hans-Peter Hombach, General aspects of coal solubility Fuel. ,vol. 59, pp. 465- 470 ,(1980) , 10.1016/0016-2361(80)90172-6
Levent Artok, Alan Davis, Gareth D. Mitchell, Harold H. Schobert, Swelling pretreatment of coals for improved catalytic liquefaction Fuel. ,vol. 71, pp. 981- 991 ,(1992) , 10.1016/0016-2361(92)90106-X
Sarah E. Towne, Yatish T. Shah, Gerald D. Holder, Girish V. Deshpande, Donald C. Cronauer, Liquefaction of coal using supercritical fluid mixtures Fuel. ,vol. 64, pp. 883- 889 ,(1985) , 10.1016/0016-2361(85)90137-1
J RINCON, S CRUZ, Influence of preswelling on liquefaction of coal Fuel. ,vol. 67, pp. 1162- 1163 ,(1988) , 10.1016/0016-2361(88)90389-4
J Kershaw, Supercritical gas extraction of Victorian brown coals: The effect of coal properties Fuel. ,vol. 64, pp. 1070- 1074 ,(1985) , 10.1016/0016-2361(85)90108-5
John W. Larsen, Thomas K. Green, Jeffrey Kovac, The nature of the macromolecular network structure of bituminous coals Journal of Organic Chemistry. ,vol. 50, pp. 4729- 4735 ,(1985) , 10.1021/JO00224A014
Ramazan Ceylan, Aral Olcay, Supercritical-gas extraction of Turkish coking coal Fuel. ,vol. 60, pp. 197- 200 ,(1981) , 10.1016/0016-2361(81)90178-2
Douglas Brenner, In situ microscopic studies of the solvent-swelling of polished surfaces of coal Fuel. ,vol. 62, pp. 1347- 1350 ,(1983) , 10.1016/S0016-2361(83)80022-2
Anna Marzec, Wlodzimierz Kisielow, Mechanism of swelling and extraction and coal structure Fuel. ,vol. 62, pp. 977- 979 ,(1983) , 10.1016/0016-2361(83)90176-X