|
|||||
|
|
| Fe2O3对高变质程度脱灰煤热解反应性与半焦结构的影响 | |
| 引用本文： | 公旭中,郭占成,王志.Fe2O3对高变质程度脱灰煤热解反应性与半焦结构的影响[J].化工学报,2009,60(9). |
| 作者姓名： | 公旭中 郭占成 王志 |
| 作者单位： | 1. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京,100190;中国科学院研究生院,北京,100049 2. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京,100190;北京科技大学循环与生态冶金教育部重点实验室,北京,100083 3. 中国科学院过程工程研究所多相复杂系统国家重点实验室,北京,100190 |
| 基金项目： | 国家高技术研究发展计划项目(20060105Z2025)~~ |
| 摘 要： | 利用热天平研究了共混合法负载Fe2O3高变质程度脱灰煤的热解反应性,结果表明煤粉负载Fe2O3后热解反应性高于无负载的热解反应性。负载Fe2O3煤样在程序升温加热的马弗炉中制备出半焦,利用FTIR、XRD和RAMAN等分析了半焦结构。由TG和FTIR可知,负载Fe2O3煤样热解时,热解转化率增加,热解后自由基增加。由XRD可知,Fe2O3没有使得煤样半焦的002峰衍射角发生明显变化,但使La和Lc参数明显降低,说明半焦的微晶结构石墨化程度降低。另外,在XRD分析谱图中发现部分Fe2O3被还原成FeO。由RAMAN可知,Fe2O3使半焦的G峰峰面积降低,D峰峰面积增加,说明半焦的有机结构有序化程度降低。 |
| 关 键 词： | 高变质程度 催化热解 半焦 结构 |
Effects of Fe2O3 on pyrolysis reactivity of demineralized higher rank coal and its char structure |
|
| GONG Xuzhong,GUO Zhancheng,WANG Zhi.Effects of Fe2O3 on pyrolysis reactivity of demineralized higher rank coal and its char structure[J].Journal of Chemical Industry and Engineering(China),2009,60(9). | |
| Authors: | GONG Xuzhong GUO Zhancheng WANG Zhi |
| Affiliation: | 1State Key Laboratory of Multiphase Complex Systems;Institute of Process Engineering;Chinese Academy of Sciences;Beijing 100190;China;2Graduate School of Chinese Academy of Sciences;Beijing 100049;3Key Laboratory of Recycling and Ecological Metallurgy;Ministry of Education;University of Science and Technology Beijing;Beijing 100083;China |
| Abstract: | The pyrolysis reactivity of demineralized higher rank coal loaded with Fe2O3 by using co-mixing was investigated with thermo-gravimetric analyzer,and it was indicated that pyrolysis reactivity of the sample loaded with Fe2O3 was higher than that of the sample without Fe2O3.Chars were prepared from the two coal samples in a temperature programmed muffle furnace,and their structures were analyzed by using FTIR,XRD and RAMAN.TG and FTIR results showed an increase of pyrolysis conversion and free radicals durin... |
| Keywords: | higher rank catalytic pyrolysis char structure |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |