微波活化对Ca(OH)2孔隙结构及脱氯性能的影响

张衍国; 贾金岩; 李清海; 蒙爱红

环境工程学报

, , ,

张衍国, 贾金岩, 李清海, 蒙爱红. 微波活化对Ca(OH)2孔隙结构及脱氯性能的影响[J]. 环境工程学报, 2007, 1(10): 136-140.

引用本文:

张衍国, 贾金岩, 李清海, 蒙爱红. 微波活化对Ca(OH)2孔隙结构及脱氯性能的影响[J]. 环境工程学报, 2007, 1(10): 136-140.

Zhang Yanguo, Jia Jinyan, Li Qinghai, Meng Aihong. Influence of microwave activation on pore structure and dechlorination porformance of Ca(OH)2[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 136-140.

Citation:

Zhang Yanguo, Jia Jinyan, Li Qinghai, Meng Aihong. Influence of microwave activation on pore structure and dechlorination porformance of Ca(OH)2[J]. Chinese Journal of Environmental Engineering, 2007, 1(10): 136-140.

微波活化对Ca(OH)2孔隙结构及脱氯性能的影响

1.
清华大学热科学与动力工程教育部重点实验室,北京 100084
2.
清华大学热科学与动力工程教育部重点实验室,北京 100085
3.
清华大学热科学与动力工程教育部重点实验室,北京 100086
4.
清华大学热科学与动力工程教育部重点实验室,北京 100087
基金项目:
中图分类号: X701

Influence of microwave activation on pore structure and dechlorination porformance of Ca(OH)2

1.
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084
2.
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100085
3.
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100086
4.
Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100087
Fund Project:

摘要: 采用微波炉对一定质量的氢氧化钙样品进行活化，利用压汞仪考察了不同微波活化时间及脱氯反应前后的Ca(OH)2总比孔表面积、分段比表面积和孔径分布的变化，并在脱氯实验台上对脱氯效率进行实际测试。结果表明，微波活化存在一个最佳时间，在此时间内样品比孔表面积增大50%左右，而超过这一时间样品比表面积回复性减小；微波活化主要通过增加3～20 nm孔径段的微孔为样品提供更大比表面积；这些新增加的微孔在脱氯反应过程中被完全利用或消耗；最佳活化时间下的微波活化使Ca(OH)2在较低Ca/Cl摩尔比下获得更大脱氯效率，Ca/Cl摩尔比=4.1时，脱氯效率增加了20%。
- 微波 /
- 氢氧化钙 /
- 孔隙结构 /
- 脱氯
Abstract: Ca(OH)2 was activated by microwave to investigate its physical characteristics and dechloriantion.The change of total pore area,pore area of different pore size zone,pore size distribution of the sample before and after reaction of different microwave activation was examined by mercury porosimeter.HCl removal efficiency of different activated samples was tested on a dechlorination system.Results show that there is an optimal time for microwave activation.At the time pore area of the sample increases by 50%,but after that it begins to reduce reversely.The quantity of 3～20 nm micro-pores increases to provide more pore area for the sample during activation.These micro-pores are totally utilized or consumed during dechloriantion.Microwave activation at optimal activation time can promote HCl removal efficiency at low Ca/Cl mole ratio.The efficiency increases 20% when Ca/Cl=4.1.
- microwave activation /
- Ca (OH)2 /
- pore structure /
- dechlorination

点击查看大图

计量

文章访问数: 1879
HTML全文浏览数: 871
PDF下载数: 1692
施引文献: 0

张衍国, 贾金岩, 李清海, 蒙爱红. 微波活化对Ca(OH)2孔隙结构及脱氯性能的影响[J]. 环境工程学报, 2007, 1(10): 136-140.

引用本文:

张衍国, 贾金岩, 李清海, 蒙爱红. 微波活化对Ca(OH)2孔隙结构及脱氯性能的影响[J]. 环境工程学报, 2007, 1(10): 136-140.

Citation:

微波活化对Ca(OH)2孔隙结构及脱氯性能的影响

1. 清华大学热科学与动力工程教育部重点实验室,北京 100084
2. 清华大学热科学与动力工程教育部重点实验室,北京 100085
3. 清华大学热科学与动力工程教育部重点实验室,北京 100086
4. 清华大学热科学与动力工程教育部重点实验室,北京 100087

收稿日期: 2007-06-07

基金项目:

关键词:

微波 /
氢氧化钙 /
孔隙结构 /
脱氯

摘要: 采用微波炉对一定质量的氢氧化钙样品进行活化，利用压汞仪考察了不同微波活化时间及脱氯反应前后的Ca(OH)2总比孔表面积、分段比表面积和孔径分布的变化，并在脱氯实验台上对脱氯效率进行实际测试。结果表明，微波活化存在一个最佳时间，在此时间内样品比孔表面积增大50%左右，而超过这一时间样品比表面积回复性减小；微波活化主要通过增加3～20 nm孔径段的微孔为样品提供更大比表面积；这些新增加的微孔在脱氯反应过程中被完全利用或消耗；最佳活化时间下的微波活化使Ca(OH)2在较低Ca/Cl摩尔比下获得更大脱氯效率，Ca/Cl摩尔比=4.1时，脱氯效率增加了20%。

English Abstract

Influence of microwave activation on pore structure and dechlorination porformance of Ca(OH)2

1. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100084
2. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100085
3. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100086
4. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education,Tsinghua University,Beijing 100087

Received Date: 2007-06-07

Fund Project:

Keywords:

Abstract: Ca(OH)2 was activated by microwave to investigate its physical characteristics and dechloriantion.The change of total pore area,pore area of different pore size zone,pore size distribution of the sample before and after reaction of different microwave activation was examined by mercury porosimeter.HCl removal efficiency of different activated samples was tested on a dechlorination system.Results show that there is an optimal time for microwave activation.At the time pore area of the sample increases by 50%,but after that it begins to reduce reversely.The quantity of 3～20 nm micro-pores increases to provide more pore area for the sample during activation.These micro-pores are totally utilized or consumed during dechloriantion.Microwave activation at optimal activation time can promote HCl removal efficiency at low Ca/Cl mole ratio.The efficiency increases 20% when Ca/Cl=4.1.

全文HTML

参考文献 (0)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

微波活化对Ca(OH)2孔隙结构及脱氯性能的影响

Influence of microwave activation on pore structure and dechlorination porformance of Ca(OH)2

计量

出版历程

微波活化对Ca(OH)2孔隙结构及脱氯性能的影响

English Abstract

Influence of microwave activation on pore structure and dechlorination porformance of Ca(OH)2

全文HTML

目录

全文HTML