[1]刘现卓,赵长遂,钱晓东,等.石灰石闪蒸改性试验研究[J].东南大学学报(自然科学版),2002,32(5):698-701.[doi:10.3969/j.issn.1001-0505.2002.05.004]
 Liu Xianzhuo,Zhao Changsui,Qian Xiaodong,et al.Experimental study on modification of pore characteristic of limestone by flash evaporation in a tank[J].Journal of Southeast University (Natural Science Edition),2002,32(5):698-701.[doi:10.3969/j.issn.1001-0505.2002.05.004]
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石灰石闪蒸改性试验研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
32
期数:
2002年第5期
页码:
698-701
栏目:
化学化工
出版日期:
2002-09-20

文章信息/Info

Title:
Experimental study on modification of pore characteristic of limestone by flash evaporation in a tank
作者:
刘现卓 赵长遂 钱晓东 吴新
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
Author(s):
Liu Xianzhuo Zhao Changsui Qian Xiaodong Wu Xin
The Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education,Southeast University, Nanjing 210096, China
关键词:
闪蒸 改性 石灰石
Keywords:
flash evaporation in a tank modification limestone
分类号:
TQ533
DOI:
10.3969/j.issn.1001-0505.2002.05.004
摘要:
在固体颗粒孔径增扩仪上对石灰石进行了闪蒸改性试验研究,用压汞仪对石灰石的粒径分布、孔径分布、比孔容积和比表面积进行了测定.结果表明,在一定压力和温度下,闪蒸试验能够增大石灰石的小孔孔径,降低石灰石的平均粒径,增加孔容积,同时比表面积有所降低.石灰石孔径增加能够改善煅烧生成的CaO的孔径结构,减少CaO硫化过程中的孔闭塞,提高钙的利用率.
Abstract:
Modification of pore characteristic of limestone was carried out in solid particle pore size enlarging apparatus experimentally. Particle size distribution, pore size distribution, specific pore volume and specific surface areas of limestone were measured by Hg porosimetry. The results show that the average particle sizes were reduced, smaller pore size and pore volume were enlarged, but specific surface areas were reduced by the flash experiment under certain pressure and temperature. The increasing of pore radius of limestone can improve the pore structure of calcined CaO and decrease the pore closure in the sulfation, that will lead to the higher Ca-conversion.

参考文献/References:

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[3] Yang R T,Shen Ming-Shing,Steinberg Meyer.Fluidized-bed combustion of coal with lime additives:catalytic sulfation of lime with iron compounds and coal ash-environ[J]. Sci & Tech,1978,12(8):915-1015.
[4] Desal N J,Yang R T.Catalytic fluidized-bed combustion:enhancement of sulfation of calcium oxide by iron oxide[J].Ind Eng Process Des Dev,1983,22(2):119-123.
[5] Tsuchiai H,Ishizuka T,Ueno T,et al.Study of flue gas desulfurization absorbent from coal fly ash:effect of the composition of the absorbent on the activity[J].Ind Eng Chem Res,1996,35(7):2322-2326.
[6] Rosana Moreira,Jainme Plan,Xiuzhi Sun.Simultaneous heat and mass transfer during the deep fat frying of tortilla[J].J of Food Process Engineering,1995,18:307-320.
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备注/Memo

备注/Memo:
基金项目: 国家重点基础研究专项经费基金(G1999022201-04)、浙江大学能源洁净利用与环境工程教育部重点实验室开放基金资助项目.
作者简介: 刘现卓(1973—),男,博士生; 赵长遂(联系人),男,教授,博士生导师,cszhao@seu.edu.cn.
更新日期/Last Update: 2002-09-20