Adsorption and Diffusion in Single and Multicomponent Adsorbates in Highly Silicious Zeolites

水蒸气和有机化合物在高硅沸石上的扩散和吸附特性将通过重量测定技术和搅拌良好的反应器来测定。主要目的是获得单组分和多组分体系的Si/Al比的吸附和扩散数据，以获得对沸石中吸附和扩散的基本理解。此外，气态混合物的竞争吸附将以水蒸气为重要变量进行研究。目前的重量测量系统的独特之处在于可以在整个吸附过程中同时监测系统压力、样品温度和样品重量的变化。这一独特的特性使人们可以研究温度对吸附的影响。更重要的是，这一特性使得通过将温升保持在最低限度来区分热效应和其他因素成为可能。搅拌均匀的系统还具有研究竞争吸附引起的位移现象的能力，这在实际吸附应用中很重要。

The diffusive and adsorptive properties of water vapor and organic compounds on highly silicious zeolites will be determined by a gravimetric technique and a well-stirred reactor. The primary objective is to obtain adsorption and diffusion data as a function of Si/Al ratios for both single component and multicomponent systems to gain fundamental understanding of adsorption and diffusion in zeolites. Furthermore, competitive adsorption from gaseous mixtures will be investigated with water vapor as an important variable. The current gravimetric system is unique in that the system pressure, the sample temperature and the sample weight change can be monitored simultaneously during the entire sorption process. This unique feature allows one to examine the temperature effect on sorption. More important is the fact that this feature makes it possible to differentiate the thermal effects from other factors by keeping the temperature rise at a minimum. Also unique to the well-stirred system is the capability to investigate the displacement phenomena resulting from competitive adsorption which is important in practical adsorption applications.