Mukherjee, Joydeb and Bose, Ankita and Pandit, Aniruddha Bhalchandra and Das, Nandini (2021) Closed form solutions of convection-diffusion mechanisms in two dimensions for H-2 separation from (H-2/CO2) mixture at room temperature. Canadian Journal of Chemical Engineering, 99 (1). S863-S880. ISSN 0008-4034

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Studies pertinent to the hydrogen based clean energy systems have seen a significant surge in this decade in order to meet the ever-increasing demand for energy in an environmentally sustainable way. In order to harness hydrogen from available sources, development and characterization of zeolite membranes with high hydrogen selectivity is of pivotal importance. In this study, a sonication based hydrothermal technique is used for the synthesis of DecaDodecasil-rhombohedral (DDR) zeolite membrane. Permeation tests of single gas and mixture of gases were conducted by using an in-house designed permeation cell. For the single gas permeation test, permeate flux was calculated using soap bubble flow meter under varying feed pressure (98-392 kPa) at 303 K. For the mixed gas permeation test, separation selectivity was measured by using gas chromatography. A mathematical model was developed in order to predict the total volume flux of hydrogen. A simple, two-dimensional parameter model was developed to simulate the steady state permeate flux, permeate and retentate streams, and the permeate concentrations for both H2 and CO2. Fourier transform was found to give the best prediction for the axial diffusion coefficient, as well as the concentration distribution of both the components, (H2 and CO2). A good agreement was found between the observed and the calculated values for total volumetric permeate flux (J(V)).The deviation between experimentally obtained results with the predicted values based on the analytical model was found to be as low as +/- 7%, ensuring adequate reliability of the proposed analytical model.

Item Type: Article
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 14 Dec 2021 07:04
Last Modified: 14 Dec 2021 07:04

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