气体在ZIF-8成型材料上吸附行为的研究(英文)

来源 :Chinese Journal of Chemical Engineering | 被引量 : 0次 | 上传用户:tongjm2009
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Zeolitic imidazolate framework-8(ZIF-8) was prepared through a solve-thermal reaction method and then shaped using different additives. The in fluence of the shaping conditions on the microstructure of the shaped samples was characterized by the XRD, BET, and SEM techniques. The results demonstrate that the compressive strength of the various shaped tablets is greatly increased and capable of meeting the industrial requirements compared to the unshaped ZIF-8 and that the loss rate of speci fic surface areas was maintained at 10% after the addition of 10%(by mass) binder and 10%(by mass) solvent. The adsorption isotherms of CO2, CH4, C3H8, and C3H6 on powdery ZIF-8and the shaped tablets(T-shaped ZIF-8, C-shaped ZIF-8, and N-shaped ZIF-8) were determined through volumetric measurements under different pressures and temperatures(298.2, 323.2, and 348.2 K). The adsorption capacities of the gases on both the ZIF-8 powder and the shaped tablets follow the order C3H6 N C3H8N CO2 N CH4. Furthermore,the results show that the adsorption capacities of the gases on the shaped tablets are lower by approximately 10%–20% than those on the powdery ZIF-8. In fact, the adsorption equilibrium isotherms for CO2, CH4, C3H8, and C3H6 on both powdery and shaped ZIF-8 can be well described by the Langmuir equation. Zeolitic imidazolate framework-8 (ZIF-8) was prepared through a solve-thermal reaction method and then shaped using different additives. The in fluence of the shaping conditions on the microstructure of the shaped samples was characterized by the XRD, BET, and SEM techniques. The results demonstrate that the compressive strength of the various shaped tablets is greatly increased and capable of meeting the industrial requirements compared to the unshaped ZIF-8 and that the loss rate of speci fic surface areas been maintained at 10% after the addition of The adsorption isotherms of CO2, CH4, C3H8, and C3H6 on powdery ZIF-8 and the shaped tablets (T-shaped ZIF-8, C-shaped ZIF-8 , and N-shaped ZIF-8) were determined through volumetric measurements under different pressures and temperatures (298.2, 323.2, and 348.2 K). The adsorption capacities of the gases on both the ZIF-8 powder and the shaped tablets follow the order C3H6 N C3H8N CO2 N CH4. Furthe rmore, the results show that the adsorption capacities of the gases on the shaped tablets are lower by about 10% -20% than those on the powdery ZIF-8. In fact, the adsorption equilibrium isotherms for CO2, CH4, C3H8, and C3H6 on both powdery and shaped ZIF-8 can be described by the Langmuir equation.
其他文献
药店快速扩张时代,什么最宝贵?人才!尤其是店长。新开门店如果没有一位得力的店长率领,要想决速赢利谈何容易,有效而高质量地培养店长成为各连锁药店扩张路上亟需解决的问题。
文章首先阐述了目前高校贫困生精准资助工作中存在的问题,然后提出了高校贫困生精准资助工作开展的方法,包括确立合适的资助对象;建立贫困生数据库;树立正确的帮扶观念;统一
同时具有自修复和可循环利用性能的聚合物材料由于能有效避免因原材料的过度浪费而带来的能源与环境问题已经引起广泛关注和研究。聚合物材料在实际使用过程中会不可避免的受
德国史学家贝林格从天气和气候的视角,对欧洲近代早期出现的大规模猎巫现象给予跨学科的重新解读,从而得出了与众不同的结论。本文评介贝林格有关天气巫术与猎巫关系的命题,并对
建立了信用违约互换效用函数模型,对非对称信息下信用违约互换风险交易进行了博弈分析. 研究结果表明,在非对称信息中,信用违约互换交易取决于信用资产的质量、交易价格以及
什么是爱与责任?爱,是一种情感,是关怀,是细水长流的呵护与守候;责任,是一个组织对社会应负的、高于组织自己目标的社会义务。$$  正是经济补偿、资金融通、社会管理这三大职能,
报纸
干旱灾害是我国发生频率最高、范围最广、损失最严重的一种自然灾害。特别是全球变暖导致特大干旱等极端天气气候事件增加,严重制约社会经济的正常运行。因此,应进行干旱灾害的
期刊
随着生产规模的不断扩大,以农户为单位的大棚袋栽生产模式已不适应市场发展的要求,冷房生产模式已成为发展方向。而目前发展冷房生产有两个突出的问题需要解决:一是接种工作,需要