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The Synthesis and Characterization of Nano Zeolitic Molecular Sieve for Separation of 133Xe from 85Kr
, Ph.D. Dissertation Sharif University of Technology ; Kazemeini, Mohammad (Supervisor) ; Ahmadi, Javad (Supervisor)
Abstract
In this study the feasibility of xenon separation from xenon-krypton mixture was investigated by utilizing of the chromatographic column filled with nano and micron sized NaY zeolite. For this purpose the nano NaY with the yield of 100% related to Al2O3 and the average size of 98.6 nm was synthesized through the clear solution method with the mid-adding of NaOH. Furthermore, a novel method for granulation of nano zeolite was developed by utilizing sodium alginate as an external template. In this method the production of uniform spherical granules with the different sizes in the range of several milimiteres to 100 µm was easily performed. Moreover, the results showed that the adding of...
Design and Simulation of Xenon Gas Collection System
, M.Sc. Thesis Sharif University of Technology ; Otukesh, Mohammad (Supervisor) ; Karimi Sabet, Javad ($item.subfieldsMap.e)
Abstract
In this thesis, desublimation (deposition) of xenon gas has been studied. Through the past decades, desublimation, became one of the important methods of separation. High purity products and applicability when common methods of separation, as distillation, are not applicable, make desublimation more efficient. Heat transfer phenomenological study of direct phase change of gas to solid (desublimation), evaluation of variation of different parameters during the phase change and finally comparison of experimental results of desublimation and mathematical modeling data are the main considerations in present thesis. Because of low cost and accessibility and heat transfer phenomenological study...