Development of Single Crystal Membrane Technique for Direct Measurement of Micropore Diffusivity

Cts-9313661克利夫兰州立大学Orhan talu摘要测定微孔中扩散系数的单晶方法将被修改，以允许在恒压下进行浓度驱动测量，并包括通过结合质谱仪进行分析来进行同位素标记的能力。用单晶法进行的研究可能有助于解决基于宏观(例如重量测量)和微观(例如核磁共振)的扩散系数估计之间的差异。气体在用于分离的吸收剂和反应器的填充床中的扩散对于许多工业化学过程的设计和操作是重要的。

CTS-9313661 Cleveland State University Orhan Talu ABSTRACT The single crystal method of determining diffusivity in micropores will be modified to permit concentration-driven measurements at constant pressure and to include the capability for isotopic labeling by the incorporation of a mass spectrometer for analysis. Investigations performed with the single crystal method may help to resolve differences between macroscopic (e.g. gavimetric) and microscopic (e.g. NMR) - based estimates of diffusivities. Diffusion of gases in absorbants for separations and in packed beds for reactors is important for the design and operation of many industrial chemical processes.