REACTIONS OF OXYGEN CONTAINING STRUCTURES IN COAL PYROLYSIS

被引:91
作者
HODEK, W
KIRSCHSTEIN, J
VANHEEK, KH
机构
[1] DMT-Gesellschaft für Forschung und Prüfung mbH, 4300 Essen 13
关键词
PYROLYSIS; MACERALS; OXYGEN;
D O I
10.1016/0016-2361(91)90133-U
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
In coal pyrolysis O-containing structures such as ether bridges and phenolic groups play an important role. Their reactions were studied by non-isothermal pyrolysis of a high volatile bituminous coal and some model polymers with gas chromatographic detection of the gaseous pyrolysis products. The coal was separated into the maceral groups vitrinite, exinite and inertinite, which showed markedly different pyrolysis behaviour. The formation of CO, methane and benzene was measured versus temperature. By comparison with polyphenyleneoxide and phenol-formaldehyde resins, it was found that the main volatilization, during which most of the tar is evolved, is initiated by cleavage of alkyl-aryl-ethers. Rearrangements of the primarily formed radicals lead to the formation of CO and methane at higher temperatures.
引用
收藏
页码:424 / 428
页数:5
相关论文
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