| 高硅沸石分子筛ZSM-11用于CH4与N2吸附分离性能的研究 |
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| 引用本文： | 郭武杰,李媛,李世帅,吴新龙,谭晋崇,李薇,杨江峰,李晋平.高硅沸石分子筛ZSM-11用于CH4与N2吸附分离性能的研究[J].天然气化工,2022(1). |
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| 作者姓名： | 郭武杰 李媛 李世帅 吴新龙 谭晋崇 李薇 杨江峰 李晋平 |
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| 作者单位： | 山西国新气体能源研究院有限公司;华新燃气集团有限公司;太原理工大学气体能源高效清洁利用山西省重点实验室 |
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| 基金项目： | 国家自然科学基金-企业创新联合基金集成项目(U20B6004)。 |
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| 摘 要： | 以四丁基氢氧化铵为模板剂,通过调节铝源和硅源的比例合成了两种高硅铝比(n(Si)/n(Al)=100、500)沸石分子筛ZSM-11,采用XRD、TG和N2吸/脱附等方法对ZSM-11分子筛进行了表征分析,测试了样品在500 kPa下对CH4和N2的吸附性能。结果表明,ZSM-11-500样品的比表面积和吸附容量略高于ZSM-11-100,两个样品的CH4/N2吸附选择性均达到4.0以上,优于商业吸附剂水平。混合气体穿透模拟结果显示,ZSM-11具有良好的CH4/N2分离能力,且对于低浓度煤层气中CH4的富集纯化脱除N2具有良好的应用前景。
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| 关 键 词： | 煤层气 ZSM-11分子筛 CH4/N2 吸附分离 |
Study on adsorption and separation performance of CH4/N2 by high-silica ZSM-11 zeolite |
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| GUO Wujie,LI Yuan,LI Shishuai,WU Xinlong,TAN Jinchong,LI Wei,YANG Jiangfeng,LI Jinping.Study on adsorption and separation performance of CH4/N2 by high-silica ZSM-11 zeolite[J].Natural Gas Chemical Industry,2022(1). |
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| Authors: | GUO Wujie LI Yuan LI Shishuai WU Xinlong TAN Jinchong LI Wei YANG Jiangfeng LI Jinping |
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| Affiliation: | (Shanxi Guoxin Gas Energy Research Institute Co.,Ltd.,Taiyuan 030032,Shanxi,China;Huaxin Gas Group Co.,Ltd.,Taiyuan 030032,Shanxi,China;Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China) |
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| Abstract: | Two kinds of ZSM-11 zeolite with high Si/Al molar ratio(n(Si)/n(Al)=100,500)were successfully synthesized by adjusting the content of aluminum source and silicon source,in which the tetrabutylammonium hydroxide was used as organic structure directing agent.The structure of ZSM-11 zeolites was analyzed by XRD,TG and N2 adsorption/desorption isotherms,and the single component adsorption isotherms of CH4 and N2 were tested under high pressure(500 kPa).The results show that the specific surface area and adsorption capacity of ZSM-11-500 are slightly higher than that of ZSM-11-100,and the CH4/N2 adsorption selectivity of the two samples is more than 4.0,which is better than that of commercial adsorbent.Additionally,the breakthrough simulation result confirmes that ZSM-11 is indeed an effective CH4/N2 separation adsorbent and has a wonderful prospect for the enrichment and purification of CH4 and denitrification in low-concentration coal-bed methane. |
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| Keywords: | coal-bed methane ZSM-11 zeolite CH4/N2 adsorption and separation |
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