H-1 CRAMPS NMR-STUDY OF THE CHEMICAL FUNCTIONALITY OF ARGONNE PREMIUM COALS

被引：9
作者：
JURKIEWICZ, A
BRONNIMANN, CE
MACIEL, GE
机构：
[1] Department of Chemistry, Colorado State University, Fort Collins
来源：
FUEL | 1994年 / 73卷 / 06期
基金：
美国国家科学基金会;
关键词：
COAL; STRUCTURE; REACTIVITY;
D O I：
10.1016/0016-2361(94)90274-7
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：
H-1 CRAMPS n.m.r. spectra of pyridine-saturated samples of the Argonne Premium coals were examined in detail. These spectra were deconvoluted to yield relative concentrations for individual peaks. Six separate peaks - three aliphatic (1.0, 1.8 and 3.5 ppm) and three aromatic (6.8, 8.3 and 10.5 ppm) - were identified, allowing assignment of the following chemical functionalities: methyl, methylene, methoxy, aliphatic methylene ether (-CH2-O-), aromatic (sp2 C-H), protons alpha to aromatic nitrogen in pyridine-type structures, phenolic OH, carboxylic OH, amine NH2 and O-hydroxypyridine OH. The relative intensity of each peak was estimated from the deconvolutions. A great diversity of chemical functionality of Argonne Premium coal samples has been observed and to some degree characterized.
引用
收藏
页码：823 / 827
页数：5
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