| 硅改性制备疏水性沸石分子筛蜂窝体 |
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| 引用本文： | 王喜芹,李凯,魏冰,栾志强. 硅改性制备疏水性沸石分子筛蜂窝体[J]. 环境科学, 2011, 32(12): 3653-3656 |
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| 作者姓名： | 王喜芹 李凯 魏冰 栾志强 |
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| 作者单位： | 1. 防化研究院,北京,100191
2. 中国矿业大学（北京）化学与环境工程学院,北京,100083 |
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| 基金项目： | 国家高技术研究发展计划(863)项目(2006AA06A310) |
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| 摘 要： | 通过氢型沸石分子筛粉体与粘结剂、助剂和水混合成面团状后挤压成型,干燥焙烧,再通过四氯化硅疏水改性处理,制备了一种蜂窝状复合沸石分子筛吸附剂.通过低温N2吸附、XRD、吸苯等手段对所制备的分子筛蜂窝体进行表征和评价.结果表明所制备的复合沸石分子筛蜂窝体经过硅改性处理后,硅铝比由4提高至22,比表面和总孔容略降,P/P0=0.95时吸苯量比改性前稍高,达18.05%.相对湿度80%RH条件下（P/P0=0.95）苯的饱和吸附量还能达到15%,与改性前相比增加了1倍多,疏水性优良.
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| 关 键 词： | 沸石 蜂窝体 吸附剂 疏水改性 四氯化硅 |
| 收稿时间： | 2011-05-30 |
| 修稿时间： | 2011-08-13 |
Preparation of Honeycombed Monolithic Zeolite and Hydrophobic Modification with SiCl4 |
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| WANG Xi-qin,LI Kai,WEI Bing and LUAN Zhi-qiang. Preparation of Honeycombed Monolithic Zeolite and Hydrophobic Modification with SiCl4[J]. Chinese Journal of Environmental Science, 2011, 32(12): 3653-3656 |
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| Authors: | WANG Xi-qin LI Kai WEI Bing LUAN Zhi-qiang |
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| Affiliation: | Research Institute of Chemical Defense, Beijing 100191, China;Research Institute of Chemical Defense, Beijing 100191, China;School of Chemical and Environmental Engineering, China University of Mining Technology(Beijing), Beijing 100083, China;Research Institute of Chemical Defense, Beijing 100191, China |
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| Abstract: | A kind of hydrophobic zeolitic monolith were prepared by mixing HY/ZSM-5, additives and water, followed by processes of extrusion and drying, and then hydrophobic modification with SiCl4. The structures and properties of the adsorbent were examined by nitrogen adsorption and desorption measurement, XRD, and benzene adsorption experiment. The results show that those adsorbents possess hierarchical pore structures and excellent hydrophobicity. |
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| Keywords: | zeolite honeycombed monolith adsorbent hydrophobic modification SiCl4 |
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