Studies on the combustion behaviour of blends of Indian coals by TGA and Drop Tube Furnace

被引：93

作者：

Biswas, S ^{[1
]}

Choudhury, N ^{[1
]}

Sarkar, P ^{[1
]}

Mukherjee, A ^{[1
]}

Sahu, SG ^{[1
]}

Boral, P ^{[1
]}

Choudhury, A ^{[1
]}

机构：

[1] Cent Fuel Res Inst, Jharkhand 828108, India

来源：

FUEL PROCESSING TECHNOLOGY | 2006年 / 87卷 / 03期

关键词：

TGA; combustion profiles; DTF; macerals; microlithotypes; char morphology;

D O I：

10.1016/j.fuproc.2005.05.002

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

Combustion behaviour of blends of two Indian coals of same rank with wide variation in mineral matter content were studied using Themiogravimetric Analyzer (TGA) and Drop Tube Furnace (DTF). The characteristic TGA parameters determined from the burning profiles showed both additive and non-additive behaviour. The burnout temperature and peak temperature showed a linearly decreasing trend with the increasing proportion of the high ash coal. Deviation from the linear trend was observed in the case of the reactivity parameter. The high ash coal showed better TGA reactivity than the low ash coal. The higher TGA reactivity could arise from the combined effect of mineral matter and the nature and distribution of the macerals, particularly those of the inertinite group. The burnout in DTF showed a nonlinear effect. The burnout behaviour of the coals and their blend observed in DTF was not similar to that reflected in TGA. Coal blends with less than 50% of high ash coal showed better burnout than the individual coals. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：191 / 199

页数：9

共 20 条

[1]

TGA AND DROP-TUBE REACTOR STUDIES OF THE COMBUSTION OF COAL BLENDS [J].