| T型及KA分子筛膜的制备、修复及其天然气脱水蒸气性能研究 |
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| 引用本文： | 张丛健,宋庆翔,谢小雪,王若琳,刘鹏霄,刘彧,张玉龙,张瑛,张晓灿,安晨.T型及KA分子筛膜的制备、修复及其天然气脱水蒸气性能研究[J].化学通报,2020,83(11):1044-1049. |
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| 作者姓名： | 张丛健 宋庆翔 谢小雪 王若琳 刘鹏霄 刘彧 张玉龙 张瑛 张晓灿 安晨 |
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| 作者单位： | 新能源与材料学院 北京 102249;理学院 北京 102249;安全与海洋工程学院,中国石油大学(北京)北京 102249 |
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| 基金项目： | 国家重点研发计划（2016YFC0303700）资助 |
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| 摘 要： | 天然气在长距离输送之前必须进行脱水蒸气,膜分离法是天然气脱水蒸气的有效方法,其中膜材料是关键,而分子筛膜因具有均一的孔径、规则的孔道、良好的稳定性而备受关注。本研究选择孔径为3-5 μm,直径为2 cm的圆片状多孔氧化铝陶瓷作为成膜基底,通过在基底上预涂晶种后原位生长得到了T型和NaA分子筛膜,NaA分子筛膜进一步经过金属离子交换获得了KA分子筛膜,最后将两种分子筛膜应用于水蒸气含量为3.5%的甲烷气体(作为模型天然气)进行天然气脱水蒸气实验。研究结果表明,T型及KA分子筛膜对模型天然气脱水蒸气的H2O/CH4选择性分别为2.80和3.16。进而采用表面涂层法对分子筛膜中的缺陷进行了修复,从而有效提高了其模型天然气脱水蒸气性能,修复后的T型及KA分子筛膜的H2O/CH4选择性分别达到了10.52和17.71,水蒸气的渗透系数分别为104397 Barrer和28200 Barrer,甲烷损失率分别仅为2%和1%,修复后的两种分子筛膜皆具有良好的稳定性。
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| 关 键 词： | 分子筛膜 晶种 氧化铝陶瓷 天然气脱水蒸气 修复 |
| 收稿时间： | 2020/1/9 0:00:00 |
| 修稿时间： | 2020/2/19 0:00:00 |
Preparation and Repair of T-type and KA Zeolite Membrane and Their Dehydration Performance for Natural Gas |
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| Zhang Congjian,Song Qingxiang,Xie Xiaoxue,Wang Ruolin,Liu Pengxiao,Liu Yu,Zhang Yulong,Zhang Ying,Zhang Xiaocan,An Chen.Preparation and Repair of T-type and KA Zeolite Membrane and Their Dehydration Performance for Natural Gas[J].Chemistry,2020,83(11):1044-1049. |
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| Authors: | Zhang Congjian Song Qingxiang Xie Xiaoxue Wang Ruolin Liu Pengxiao Liu Yu Zhang Yulong Zhang Ying Zhang Xiaocan An Chen |
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| Institution: | New Energy and Materials Institute,China University of Petroleum Beijing,College of Science,China University of Petroleum Beijing,New Energy and Materials Institute,China University of Petroleum Beijing,New Energy and Materials Institute,China University of Petroleum Beijing,College of Science,China University of Petroleum Beijing,New Energy and Materials Institute,China University of Petroleum Beijing,Ocean Engineering Institute,China University of Petroleum Beijing,New Energy and Materials Institute,China University of Petroleum Beijing,College of Science,China University of Petroleum Beijing,Ocean Engineering Institute,China University of Petroleum Beijing |
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| Abstract: | T-type and KA zeolite membranes were synthesized on the alumina ceramics substrate and applied to model natural gas (mathane gas with 3.5% water vapor) dehydration. The model natural gas dehydration performance showed that the H2O/CH4 selectivities for model natural gas removal were 2.80 and 3.16 respectively for the T-type and KA zeolite membranes. Furthermore, the surface coating method was used to repair the defects in the zeolite membrane, thereby effectively improving its performance on the dehydration of model natural gas the H2O/CH4 selectivities up to 10.52 and 17.71, with the water vapor permeability coefficients of 104397 Barrer and 28200 Barrer and the methane loss rates of only 2% and 1%, respectively. The two repaired zeolite membranes had good stability. |
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| Keywords: | Zeolite Membrane Seed Alumina Ceramic Natural gas Dehydration Repair |
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