Transient Studies of Zeolite Membranes

这项建议涉及用于分离过程的沸石膜中的传输特性的研究。这项研究的特殊目的是调查沸石和非沸石孔扩散路径对这些体系中的传输行为和化学选择性的相对影响。这是一个重要的问题，因为使用不同的合成方法可以产生各种各样的沸石结构，并且在每种情况下，都可能形成具有不同程度的沸石和非沸石孔域的膜结构。在研究过程中测量的瞬时渗透率数据将非常有助于我们进一步了解沸石和非沸石孔扩散路径在这些体系中的相对贡献。正如提案中指出的那样，晶界之间非沸石通道的形成往往是不可避免的，有必要对这些通道进行表征，并更好地了解它们在影响分离过程中膜性能方面的作用。

This proposal concerns the study of transport properties in zeolite membranes used in separations processes. The particular objective of this study is to investigate the relative influence of both zeolite and non-zeolite pore diffusion pathways on transport behavior and chemical selectivity in these systems. This is a significant issue given the great variety of zeolite structures that can be produced using different synthesis methods, and the likelihood, in each case, of membrane structures being formed with varying degrees of zeolite and non-zeolite pore domains. The transient permeance data to be measured during the course of this research will be extremely useful for furthering our understanding of the relative contributions of zeolite and non-zeolite pore diffusion pathways in these systems. As pointed out in the proposal, the formation of non-zeolite pathways between crystal boundaries is often unavoidable, and there is a need to characterize these pathways and better understand their role in affecting membrane performance in separations processes.