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

直接测量微孔扩散率的单晶膜技术的发展

• 批准号: 9313661
• 负责人: Orhan Talu
• 金额: $ 16.22万
• 依托单位: Cleveland State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-04-01 至 1998-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9313661&HistoricalAwards=false
• 关键词: Development; Single; Crystal; Membrane; Technique

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.

CTS-9313661克利夫兰州立大学Orhan Talu 摘要 将修改确定微孔中扩散率的单晶方法，以允许在恒定压力下进行浓度驱动测量，并包括通过结合质谱仪进行分析的同位素标记能力。 用单晶方法进行的研究可能有助于解决宏观（如重力）和微观（如NMR）的扩散率估计之间的差异。 气体在用于分离的吸收剂和用于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。