| Comparison of fractal properties of porous structures during coal devolatilization | |
| Wang, Xiaoliang ; He, Rong | |
| 2010-05-10 ; 2010-05-10 | |
| 会议名称 | KOREAN JOURNAL OF CHEMICAL ENGINEERING ; 6th Korea-China Workshop on Clean Energy Technology ; Busan, SOUTH KOREA ; Web of Science |
| 关键词 | fractal coal/char pores devolatilization X-RAY-SCATTERING PORE STRUCTURE MERCURY POROSIMETRY COMBUSTION CHARS DIMENSIONS CARBON MODEL Chemistry, Multidisciplinary Engineering, Chemical |
| 中文摘要 | This paper investigates fractal property changes of pore structures during coal devolatilization. Similar to char pores, coal pores can also be classified as micro pores and macro pores based on their fractal dimensions. The specific surface area and fractal dimension of micro pores in coal particles are basically unchanged after devolatilization. However, the specific surface area and fractal dimension of macro pores, which are key factors in char combustion, are increased after devolatilization. In fact, the fractal dimensions are basically doubled. These parameters will affect another fractal geometrical factor beta in char pores that is correlated to char combustion rate. Since the rate of char combustion can be predicted from their fractal pore properties, it may be possible to predict char combustion directly from the properties of their parent coal pores in the future. |
| 会议录出版者 | KOREAN INST CHEM ENGINEERS ; SEOUL ; #307 REGENT RIVER VIEW OFFICE, 547-8 KUI-DONG SUNGDONG-KU, SEOUL 133-200, SOUTH KOREA |
| 语种 | 英语 ; 英语 |
| 内容类型 | 会议论文 |
| 源URL | [http://hdl.handle.net/123456789/19592]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | Wang, Xiaoliang,He, Rong. Comparison of fractal properties of porous structures during coal devolatilization[C]. 见:KOREAN JOURNAL OF CHEMICAL ENGINEERING, 6th Korea-China Workshop on Clean Energy Technology, Busan, SOUTH KOREA, Web of Science. |
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