Preparation and Properties of Supported Zeolite Membranes

CTS-9504901 Gavalas Cal Tech 本文研究了在多孔基底上原位形成分子筛膜的基本原理，以合成高渗透性和高选择性的膜。 ZSM-5和沸石A的膜将在多孔氧化铝板或管上生长，所述多孔氧化铝板或管放置在保持在适当温度和自生压力下的合适组成的澄清溶液中。 晶体尺寸、膜质量和厚度的控制将通过改变基底的孔径和合成条件来实现。 将进行表征和渗透实验以评估膜在重要气体分离中的性能。 该研究将有助于开发在分离、催化和反应工程中具有潜在应用价值的分子筛膜。

CTS-9504901 Gavalas Cal Tech The fundamentals of in-situ formation of zeolite films on porous substrates will be studied in order to synthesize membranes of high permeance and selectivity. Films of ZSM-5 and zeolite A will be grown on porous alumina plates or tubes placed in clear solutions of suitable compositions maintained at appropriate temperature and autogeneous pressure. Control of crystal size, film quality and thickness will be achieved by varying the pore size of the substrate and synthesis conditions. Characterization and permeation experimelts will be performed to evaluate the performance of the membrane in important gas separations. The research may lead to the development of improved zeolite membranes with potential applications in separations, catalysis and reaction engineering.