Effects of mineral matter on products and sulfur distributions in hydropyrolysis

被引：84

作者：

Chen, HK ^{[1
]}

Li, BQ ^{[1
]}

Zhang, BJ ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Shanxi, Peoples R China

来源：

FUEL | 1999年 / 78卷 / 06期

关键词：

mineral matter; hydropyrolysis; sulfur distribution;

D O I：

10.1016/S0016-2361(98)00195-1

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 [动力工程及工程热物理]; 0820 [石油与天然气工程];

摘要：

The effects of the mineral matter on the product yield and sulfur distribution in hydropyrolysis and pyrolysis of Chinese Hongmiao lignite were investigated using a fixed-bed reactor. The volatile sulfur-containing gases (H2S,COS,CH3SH) were also analyzed as a function of pyrolysis temperature. Coal samples were treated with HCl/HF or HCl/HF and CrCl2 solution to eliminate minerals and pyrite respectively. In hydropyrolysis, demineralized Hongmiao lignite showed lower yields of tar and water than the raw coal. Demineralization cannot only minimize the fixation effect of basic mineral matter on sulfur-containing gases, but also increase the sulfur distribution of the tar. Further, from the evolution profiles of sulfur-containing gases, it is possible to elucidate the contribution of minerals, pyrite and organic sulfur to the sulfur evolution. Pyrite may not be the only source of COS formation. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：713 / 719

页数：7

共 32 条

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[2]

CHEMISTRY, THERMODYNAMICS AND KINETICS OF REACTIONS OF SULFUR IN COAL-GAS REACTIONS - REVIEW [J].