COMPARISON OF THE C-13 NMR-SPECTRA OF SOLID COALS AND THEIR LIQUIDS OBTAINED BY CATALYTIC-HYDROGENATION

被引:49
作者
ZILM, KW [1 ]
PUGMIRE, RJ [1 ]
GRANT, DM [1 ]
WOOD, RE [1 ]
WISER, WH [1 ]
机构
[1] UNIV UTAH,DEPT MIN & FUELS ENGN,SALT LAKE CITY,UT 84112
基金
美国国家卫生研究院;
关键词
D O I
10.1016/0016-2361(79)90045-0
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
High-volatile bituminous and lignite coals have been studied by means of carbon-13 n.m.r. employing cross-polarization and magic-angle-spinning techniques. The solids spectra have been compared to those of the coal-derived liquids. By artificially broadening the high-resolution spectra of the liquids, a striking similarity in line shape and position is observed when the liquid spectra are compared with those of the corresponding solid coal. It is noted however that certain bands visible in the solid are no longer present in the liquefied state. The significance of these results is discussed in terms of carbon skeletal structures present in the solids but not in the liquids. © 1979.
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页码:11 / 16
页数:6
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