化工学报2016，Vol.67Issue(8)：3170-3178,9.DOI:10.11949/j.issn.0438-1157.20160427
零长柱技术用于分子筛晶内扩散的研究进展
Progress on diffusion studies in zeolites using ZLC techniques
摘要
Abstract
The intrapartical diffusivity plays an important role in guiding the process of shape-selective catalysis and adsorptive separation. The methods of study on intracrystalline diffusion in zeolites, such as gravimetric method, NMR technique and molecular simulation, were summarized firstly. Furthermore, recent progress in development and application of Zero Length Column (ZLC) method to the measurement of intracrystalline diffusion in zeolites was reviewed, including single component in gas-phased diffusion with two sampling patterns (gas phase and liquid phase sampling),gas-phased diffusion of binary system and counter diffusion, liquid-phased diffusion, and development of the mathematical models. Some existing problems were also discussed. Finally, application of ZLC method for diffusion of hydrocarbon molecules in the porous materials in the future was prospected.关键词
零长柱/扩散/分子筛Key words
zero length column/diffusion/zeolite分类
化学化工引用本文复制引用
陈振涛,武云,徐春明..零长柱技术用于分子筛晶内扩散的研究进展[J].化工学报,2016,67(8):3170-3178,9.基金项目
国家重点基础研究发展计划项目(2012CB215001)；国家自然科学基金青年基金项目（21106183）。 Foundation item:supported by the National Basic Research Program of China (2012CB215001) and the National Natural Science Foundation of China (21106183) （2012CB215001）
