| Effect of pyrolysis intensity on the reactivity of coal char | |
| Zhang, Shou-Yu ; Lu, Jun-Fu ; Zhang, Jian-Sheng ; Yue, Guang-Xi | |
| 2010-05-11 ; 2010-05-11 ; SEP,OCT | |
| 关键词 | MICROPOROUS SURFACE-AREA VICTORIAN BROWN-COAL CARBON-DIOXIDE COMBUSTION REACTIVITY STEAM GASIFICATION AIR GASIFICATION CELLULOSIC CHARS MINERAL MATTER HEATING RATE ALKALI Energy & Fuels Engineering, Chemical |
| 中文摘要 | The effect of pyrolysis conditions on char reactivity was studied in this paper. The char samples were prepared in a N-2 atmosphere from the vitrinite constituents of two bituminous coals (YX and JJ) and their demineralized samples at different temperatures (800-1200 degrees C) and for different residence times. The effect of pyrolysis intensity on the carbon microstructure in the resulting char was characterized by the X-ray diffraction (XRD) technique. The reactivity of the char samples prepared under different pyrolysis conditions was measured by isothermal thermogravimetric analysis methods in an air atmosphere. The results show that the reactivity of the coal char decreases with increasing pyrolysis intensity and, when the pyrolysis temperature is high enough, the reactivity of the chars prepared from two coals and their demineralized samples tend to be the same. With increasing pyrolysis intensity, the growth of the carbon microstructure, accompanied by diminishing catalytic capability of minerals, results in the decrease in char reactivity. |
| 语种 | 英语 ; 英语 |
| 出版者 | AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/25834]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Zhang, Shou-Yu,Lu, Jun-Fu,Zhang, Jian-Sheng,et al. Effect of pyrolysis intensity on the reactivity of coal char[J],2010, 2010, SEP,. |
| APA | Zhang, Shou-Yu,Lu, Jun-Fu,Zhang, Jian-Sheng,&Yue, Guang-Xi.(2010).Effect of pyrolysis intensity on the reactivity of coal char.. |
| MLA | Zhang, Shou-Yu,et al."Effect of pyrolysis intensity on the reactivity of coal char".(2010). |
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