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Modeling of the Relationship Between Pore size Distribution and Thickness of Ceramic MF Membrane

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Chinese Journal of Chemical Engineering 1998年第3期6卷 38-48页

作者：董军航王沛徐南平时钧 Jerry y.s.lin Department of Chemical Engineering University of Cincinnati Cincinnati Ohio OH 45221 UsA

The pore size distribution(PsD)measured by the gas bubble point(GBP)method ofceramic microfiltration(MF)membranes prepared by suspension technique was found to be signifi-cantly influenced by the membrane thickness.A culm-like model for pore structure was introduced tocharacterize the membrane pores instead of the conventional model which does not reflect the radiusvariation along the pore passages and is unable to explain the thickness effect on the membrane PsD.A laminate structure,taking the culm-like model for pore structure into consideration,was hypoth-esized for ceramic MF membranes.A mathematical model was then established to quantitativelydescribe the relationship between the membrane number PsD and the membrane *** were obtained for the correlation of mean pore size and simulation of the PsD for ceramicMF membranes.

关键词： modeling pore structure pore size distribution thickness ceramic membrane

MECHANICAL sTRENGTH AND RELIABILITy OF sOLID CATALysTs

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China Particuology 2004年第2期2卷 53-62页

作者： yongdanLi DongfangWu y.s.lin DepartmentofCatalysisscience SchoolofChemicalEngineeringTianjinUniversityTianjin300072F~R.China DepartmentofChemicalEngineering UniversityofCincinnati.Cincinna~LOhio452~i-017~1.USA

The mechanical strength of solid catalysts is one of the key parameters for reliable and efficient perform-ance of a fixed bed reactor. some recent developments and their basic mechanics within this context are reviewed. The main concepts discussed are brittle fracture which leads to the mechanical failure of the catalyst pellets, measurement and statistical properties of the catalyst strength data, and mechanical reliability of the catalyst pellets and their packed bed. The scientific basis for the issues on the catalyst mechanical properties calls yet for further elucidation and ad-vancement.

关键词： mechanical strength of porous materials reliability solid catalyst Weibull statistics packed catalyst bed

Zeolite Membranes for separation and Reaction: From Dream to Reality

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Zeolite Membranes for Separation and Reaction: From Dream to...

Evolutionary mechanism of zeolite monolayer on substrate surface in hydrothermal reaction

第十六届全国分子筛大会

作者： Jerry y.s.lin school of Engineering for Matter Transport and Energy Arizona State University Tempe

＜正＞Zeolites are referred to as molecular sieves but to transform zeolite crystals into a form of thin membrane that can be used to sieve molecules of different size was one of greatest challenges that faced the zeolite *** 15 years have seen much progress in synthesis and applications of zeolite membranes thanks to the advances in inorganic membrane science and *** key approach adopted by the membrane community was to make thin,polycrystalline zeolite films,rather than single zeolite

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Evolutionary mechanism of zeolite monolayer on substrate sur...

在壳聚糖改性的硅锆复合中间层上原位水热合成b轴取向silicalite-1分子筛膜

第十五届全国分子筛学术大会

作者： Jerry y.s.lin Department of Chemical Engineering Arizona State University

＜正＞As advanced functional materials, oriented zeolite thin films and membranes have been applied as separation and catalytic membranes, imaging and data storage media,

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化工学报 2006年第4期57卷 1019-1022页

作者：刘秀凤郎林张宝泉 y.s.lin 天津大学化工学院天津300072 亚力桑那州立大学化学与材料工程系 TempeAZ 85287USA

The b-oriented silicalite-1 membrane on the substrate α-Al2O3 pre-coated with a silica-zirconia intermediate layer was synthesized by using in-situ crystallization. The influence of chemical properties of the substrate surface on crystal growth and orientation was investigated. The result indicated that the surface modification by pre-coating a thin film of chitosan was conducive to the formation of b-oriented silicalite-1 membrane with good quality.

关键词：分子筛膜壳聚糖表面改性生长机理

Research on pre-synchronization control strategy of the micro-grid with multi-VsG

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Global Energy Interconnection 2018年第3期1卷 376-381页

作者： Tao yan Cairan Wang Zong Liu shaohua Xu yu Ba Juntao Fei Jerry y.s.lin state Key Laboratory of Operation and Control of Renewable Energy & storage systems Beijing Jiaotong University Zhenjiang Power supply Company Electric Power Research Institute of state Grid Jiangsu Electric Power Co.LTD Arizona state University

seamless switching is an important guarantee for the inverter to work continuously without stopping when gridconnected power generation system is the transient process from grid-connected to isolated island and from isolated island reclosing. Based on the principle of pre-synchronous operation of traditional synchronous generators, this paper analyzes the principle of pre-synchronous process and its effect on the steady-state of micro grid with multiple virtual synchronous generators. At the same time, the paper analyzes the transient influence of the closed pre-synchronous switch on the power distribution of the micro grid under different phase modes. This paper proposes a pre-synchronous control strategy based on phase recognition. MATLAB/simulink simulation software is used to verify the correctness and validity of the proposed method.

关键词： Virtual synchronous generator(VsG) Power allocation Pre-synchronization Phase identification

多孔Al_2O_3陶瓷膜的修饰及其蒸汽分离性能的研究

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膜科学与技术 2000年第1期20卷 6-11页

作者：潘铭孟广耀 y.s.lin 中国科学技术大学材料科学与工程系合肥230026 辛辛那提大学化学工程系辛辛那提oh45221

采用原子层控制生长化学气相淀积方法对多孔γ -Al2 O3陶瓷膜进行缩孔修饰研究 .多孔陶瓷膜表层孔中淀积的Al2 O3大大减小了薄膜的孔径 .用缩孔修饰后的γ -Al2 O3陶瓷膜进行水蒸气分离实验 ,获得极好的分效果 ,相对湿度为 12 %时 ,水... 详细信息

采用原子层控制生长化学气相淀积方法对多孔γ -Al2 O3陶瓷膜进行缩孔修饰研究 .多孔陶瓷膜表层孔中淀积的Al2 O3大大减小了薄膜的孔径 .用缩孔修饰后的γ -Al2 O3陶瓷膜进行水蒸气分离实验 ,获得极好的分效果 ,相对湿度为 12 %时 ,水蒸气与氧气的分离系数达到 71.

关键词：多孔陶瓷膜蒸汽分离氧化铝陶瓷分离

IO-07-Evolutionary mechanism of zeolite monolayer on substrate surface in hydrothermal reaction

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IO-07-Evolutionary mechanism of zeolite monolayer on substra...

预置纳米MOF-5晶种二次生长法合成MOF-5膜

第十五届全国分子筛大会

作者： Xiufeng Liu lin Lang Haiyang Jiang Jerry y.s.lin Baoquan Zhang school of Chemical Engineering and Technology and state Key Laboratory of Chemical Engineering Tianjin University state Key Laboratory of Fine Chemicals Dalian University of Technology Department of Chemical Engineering Arizona State University

＜正＞As advanced functional materials,oriented zeolite thin films and membranes have been applied as separation and catalytic membranes,imaging and data storage media,light energy harvesting devices and electrode ***,there are two main formation mechanisms for hydrothermal synthesis of supported zeolite films and membranes named heterogeneous nucleation model（HTN model）and homogeneous nucleation model（HMN model）.Thus far,all

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化工学报 2011年第2期62卷 507-514页

作者：赵祯霞李忠林跃生华南理工大学材料科学与工程学院华南理工大学化学与化工学院广东广州510641 美国亚利桑那州立大学化工学院亚利桑那州坦佩85281

以Zn(O2CCH3)2为锌源采用溶剂热法合成了纳米级金属有机骨架MOF-5晶体,并以此为晶种预置在多孔-αAl2O3载体的表面以形成连续的晶种层,再利用二次生长法制备出超薄且连续的MOF-5晶体膜。实验结果表明:以Zn(O2CCH3)2为锌源所制得的MOF-5... 详细信息

以Zn(O2CCH3)2为锌源采用溶剂热法合成了纳米级金属有机骨架MOF-5晶体,并以此为晶种预置在多孔-αAl2O3载体的表面以形成连续的晶种层,再利用二次生长法制备出超薄且连续的MOF-5晶体膜。实验结果表明:以Zn(O2CCH3)2为锌源所制得的MOF-5晶体能保持了MOF-5的立方体形貌且具有较高的结晶度和比表面积,晶体的颗粒大小均一,尺寸集中在500～800nm范围内,仅以Zn(NO3)2为锌源制得的MOF-5晶体粒径的1/100;以这种纳米级MOF-5为晶种所制得的晶种层的厚度较薄(～4μm)且具有较好的分散性和连续性;经过二次生长后可以得到连续生长的晶体膜。该晶体膜的XRD的特征衍射峰与MOF-5晶粒的特征衍射峰完全相符,这说明膜层上的MOF-5晶体是以无定形方式生长的;sEM照片显示所得的MOF-5晶体膜上的晶体粒径较小且大小均一、晶粒间连接紧密且无明显裂痕,晶膜层生长连续而无明显的裂痕;本文所制得的MOF-5晶体膜层非常薄,厚约为6μm,是目前公开报道的最薄MOFs膜。

关键词： MOF-5膜二次生长法纳米级MOF-5晶体晶种