| 石油焦水蒸气气化过程孔隙结构和气化速率的变化 |
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| 引用本文： | 李庆峰,房倚天,张建民,王洋,时铭显,孙国纲.石油焦水蒸气气化过程孔隙结构和气化速率的变化[J].燃料化学学报,2004,32(4):435-439. |
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| 作者姓名： | 李庆峰 房倚天 张建民 王洋 时铭显 孙国纲 |
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| 作者单位： | 1. Institute of Coal Chemistry, Chinese Academy of Sciences， Taiyuan 030001, China; 2. University of Shanghai for Science and Technology， Shanghai 200093, China; 3. University of Petroleum, Beijing 100083, China |
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| 基金项目： | 国家重点基础研究发展规划项目(G1999022105)，中国科学院知识创新工程重要方向项目(KGCX2 SW 308)。 ~~ |
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| 摘 要： | 以氮气为吸附质，测定了部分气化石油焦的比表面积、孔容及其随孔径的分布，研究了石油焦的孔隙结构在气化过程中的变化及其对气化反应的影响。结果表明，石油焦的孔主要由微孔组成；水蒸气条件下气化时石油焦的比表面积、孔容随碳转化率增加而不断增大；不同孔隙率和比表面积的石油焦，其气化反应速率曲线变化趋势不同；石油焦的比气化反应速率与孔隙结构有着紧密的关系，比气化反应速率和有效比表面积之间有着较好的线性关系。
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| 关 键 词： | 石油焦 气化 孔隙结构 |
| 文章编号： | 0253-2409(2004)04-0435-05 |
| 收稿时间： | 2003-09-27 |
| 修稿时间： | 2003年9月27日 |
Changes of pore structure and gasification activity during steam-gasification of petroleum coke |
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| LI Qing-feng,FANG Yi-tian,ZHANG Jian-min,WANG Yang,SHI Ming-xian,SUN Guo-gang.Changes of pore structure and gasification activity during steam-gasification of petroleum coke[J].Journal of Fuel Chemistry and Technology,2004,32(4):435-439. |
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| Authors: | LI Qing-feng FANG Yi-tian ZHANG Jian-min WANG Yang SHI Ming-xian SUN Guo-gang |
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| Institution: | LI Qing-feng~1,FANG Yi-tian~1,ZHANG Jian-min~2,WANG Yang~1,SHI Ming-xian~3,SUN Guo-gang~3 |
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| Abstract: | The specific surface area and pore volume of partially gasified petroleum cokes of different conversions are determined. Change of pore structure of partially gasified petroleum coke and its relationship with the gasification rate are investigated. The results show that pores of petroleum coke are mainly micropores. The specific surface area and pore volume increase with carbon conversion during steam gasification. Gasification rate plots changes differently for petroleum coke with different porosity and surface area. The reactivity has a close relationship with pore structure. There is a good linear relation between the specific gasification rate and the effective specific surface area. |
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| Keywords: | petroleum coke gasification pore structure |
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