Effect of organic calcium compounds on combustion characteristics of rice husk, sewage sludge, and bituminous coal: Thermogravimetric investigation

被引：30
作者：
Zhang Lihui [1 ]
Duan Feng [1 ,2 ]
Huang Yaji [1 ]
机构：
[1] Southeast Univ, Sch Energy & Environm, Minist Educ, Key Lab Energy Thermal Convers & Control, Nanjing 210096, Jiangsu, Peoples R China
[2] Anhui Univ Technol, Sch Energy & Environm, Maanshan 243002, Anhui, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2015年 / 181卷
基金：
中国博士后科学基金;
关键词：
Organic calcium compound; Combustion; Biomass; Sewage sludge; Coal; VORTEXING FLUIDIZED-BED; MAGNESIUM ACETATE; PYROLYSIS; SO2; GASIFICATION; EMISSION; CHAR; NOX; REDUCTION; SORBENT;
D O I：
10.1016/j.biortech.2015.01.041
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Experiments were conducted in a thermogravimetric analyzer to assess the enhancement of combustion characteristics of different solid fuels blended with organic calcium compounds (OCCs). Rice husk, sewage sludge, and bituminous coal, and two OCC were used in this study. Effect of different mole ratios of calcium to sulfur (Ca/S ratio) on the combustion characteristics were also investigated. Results indicated that combustion performance indexes for bituminous coal impregnated by OCC were improved, however, an inverse trend was found for sewage sludge because sewage sludge has lower ignition temperature and higher volatile matter content compared to those of OCC. For rice husk, effect of added OCC on the combustion characteristics is not obvious. Different solid fuels show different combustion characteristics with increases of Ca/S ratio. The maximum combustion performance indexes appear at Ca/S ratios of 1: 1, 2: 1, and 3: 1 for OCC blended with Shenhua coal, rice husk, and sewage sludge, respectively. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：62 / 71
页数：10
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