| 硫化过程中钙基脱硫剂孔结构的非线性变化特性 |
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| 引用本文： | 缪明烽,沈湘林. 硫化过程中钙基脱硫剂孔结构的非线性变化特性[J]. 东南大学学报(自然科学版), 2002, 32(3): 427-430 |
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| 作者姓名： | 缪明烽 沈湘林 |
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| 作者单位： | 东南大学洁净煤发电及燃烧技术教育部重点实验室,南京,210096;东南大学洁净煤发电及燃烧技术教育部重点实验室,南京,210096 |
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| 基金项目： | 国家重点基础研究专项经费资助项目 (G19990 2 2 2 0 6 ) |
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| 摘 要： | 以热重天平（thermogravimetric analyzer,TGA）为实验台,采用N2吸附法测定孔结构参数,研究了硫化反应中钙基脱硫剂不可进入孔隙的形成、孔隙分形维数以及分形结构的变化特性等,结果表明：脱硫剂中不可进入孔隙的形成主要出现在硫化反应的开始阶段,随着硫化反应的进行,脱硫剂孔结构的分形维数不断减小,且孔隙分布与分形维数之间满足Friesen关系方程。
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| 关 键 词： | 钙基脱硫剂 孔结构 分形维数 |
| 文章编号： | 1001-0505(2002)03-0427-04 |
Non-linear characteristics of pore structures in calcium based sorbents during sulfation reactions |
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| Miao Mingfeng Shen Xianglin. Non-linear characteristics of pore structures in calcium based sorbents during sulfation reactions[J]. Journal of Southeast University(Natural Science Edition), 2002, 32(3): 427-430 |
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| Authors: | Miao Mingfeng Shen Xianglin |
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| Abstract: | Experiment was carried out in a TGA (thermogravimetric analyzer), and pore parameters were measured with N 2 absorption. The inaccessible pores, fractal properties and fractal dimension changes during sulfation were also investigated. Results show that the formation of inaccessible pores occurs in the initial reaction stage mostly; fractal dimensions decrease continuously in the process of sulfating, and the relationship between the fractal dimension and pore distribution meets the Friesen equation. |
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| Keywords: | calcium based sorbent pore structure fractal dimension |
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