Synthesis & Characterization of Nano Zeolite SAPO-34 Membranes on Alumina Supports and Evaluation of Their Performance for Gas and Vapor Separation

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Dargahi, Mahdi | 2009

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 39069 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Soltanieh, Mohammad; Kazemian, Hossein
Abstract:
A Novel synthesis method to assemble of nano crystalline SAPO-34 molecular sieves crystalline is successfully developed at a supercritical condition. The environmental and operating conditions are investigated through a Taguchi L-9 orthogonal array and optimum synthesis conditions in order to reach highest crystallinity and smallest crystalline. The products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), thermal method of analysis (e.g. TG-DTA), and infra red spectroscopy (FT-IR) techniques. In comparison to conventional hydrothermal methods, using a supercritical hydrothermal approach leads to the higher purity, reduced particle size, and change of morphology to the aggregation of nano-sized cubic crystals. Then, some zeolitic membranes on alumina supports are synthesized to study their separation performances for light gas
Keywords:
Nanozeolite ; Experiments Design ; Membranes ; Gases Separation ;

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