| CFB-FGD 工艺中Ca(OH)2颗粒悬浮液最大分散度的实验研究 |
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| 引用本文： | 王世昌,姚强,徐旭常. CFB-FGD 工艺中Ca(OH)2颗粒悬浮液最大分散度的实验研究[J]. 燃烧科学与技术, 2005, 11(3): 248-252 |
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| 作者姓名： | 王世昌 姚强 徐旭常 |
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| 作者单位： | 1. 清华大学热能工程系热能动力工程与热科学重点实验室,北京,100084;华北电力大学动力工程系,北京,102206
2. 清华大学热能工程系热能动力工程与热科学重点实验室,北京,100084 |
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| 基金项目： | 国家重点基础研究发展规划(973)资助项目(G19990222). |
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| 摘 要： | CFB-FGD工艺中的CaO颗粒粒径偏大，CaO转化率比较低．降低CaO颗粒粒径的途径之一是优化脱硫剂制备工艺．为此，研究了用5种不同制备工艺得到的Ca(OH)2颗粒悬浮液和悬浮液中Ca(OH)2颗粒的算术平均粒径．实验结果表明，采用0．006mol／L的六偏磷酸钠溶液与CaO水合反应得到的Ca(OH)2颗粒悬浮液的分散度增加了6．62倍，Ca(OH)2颗粒的算术平均粒径降低到了1053nm．这是一种简单、有效、经济的脱硫剂制备工艺．
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| 关 键 词： | 循环流化床烟气脱硫工艺 Ca（OH）2颗粒 悬浮液 分散度 |
| 文章编号： | 1006-8740(2005)03-0248-05 |
| 修稿时间： | 2004-11-08 |
Experimental Study on the Maximum Dispersion Rate of the Ca (OH) 2 Particles-Water Suspension Liquid for CFB-FGD Process |
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| WANG Shi-chang,YAO qiang,XU Xu-chang. Experimental Study on the Maximum Dispersion Rate of the Ca (OH) 2 Particles-Water Suspension Liquid for CFB-FGD Process[J]. Journal of Combustion Science and Technology, 2005, 11(3): 248-252 |
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| Authors: | WANG Shi-chang YAO qiang XU Xu-chang |
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| Affiliation: | WANG Shi-chang~ |
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| Abstract: | The CaO particle diameter in CFB(circulating fluidized bed)-FGD(flue gas desulphurization) technology is so large that the conversion rate of CaO in de-sulfurization reaction is rather low. To reduce the CaO particle diameter, the preparation process of absorbent must be optimized. This paper studied 5 different kinds of Ca(OH)_2 particle suspension liquid and the Ca(OH)_2 particle diameter. The experimental results reveale that hydration of solution of (NaPO_3)_6 with the concentration of 0.006 mol/L and CaO particles increase the dispersion rate by 6.62 times and the Ca(OH)_2 particle diameter is reduced to 1 053 nm. This is a simple, effective and economical process for the absorbents preparation of CFB-FGD technology. |
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| Keywords: | CFB-FGD process Ca(OH)_2 particles suspension liguid dispersion rate |
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