Influence of heat treatment conditions on release of chlorine from Datong coal

被引：14

作者：

Guo, RX ^{[1
]}

Yang, JL ^{[1
]}

Liu, ZY ^{[1
]}

机构：

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

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2004年 / 71卷 / 01期

基金：

中国国家自然科学基金;

关键词：

coal; chlorine; heat treatment;

D O I：

10.1016/S0165-2370(03)00086-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Chlorine emission from Datong bituminous coal of China during fast heat treatments was reported. The heat treatment experiments were carried out in a closed simulated dropping tube reactor (similar to1000 degreesC s(-1)). Effects of temperature (300-700 degreesC), N, pressure (0.1-4 MPa), and heating time under N-2 atmosphere on chlorine release were studied. Influence of atmosphere (N-2 and H-2) was also investigated. Results show that the bleeding ratio of chlorine increases with increases in heating temperature and time. High N-2 pressure restrains chlorine emission. H-2 environment promotes chlorine emission. The data implies that secondary reactions may play an important role in chlorine release and reducing environment is beneficial for chlorine release. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：179 / 186

页数：8

共 10 条

[1]

GIBB WH, 1983, ANGUS I ENERGY, V53, P109

[2]

GUO RX, 2002, ACS FUEL CHEM DIVISI, V47, P203

[3] MASS-SPECTROMETRIC STUDY OF THE RELEASE OF HCL AND OTHER VOLATILES FROM COALS DURING MILD HEAT-TREATMENT [J].