Mohamed Al-Marzouqi
United Arab Emirates University
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Publication
Featured researches published by Mohamed Al-Marzouqi.
Chemical Engineering Science | 2002
Mohamed Al-Marzouqi; Kees Hogendoorn; Geert Versteeg
An analytical expression for the facilitation factor of component A across a liquid membrane is derived in case of an instantaneous reaction A(g)+B(l)AB(l) inside the liquid membrane. The present expression has been derived based on the analytical results of Olander (A.I.Ch.E. J. 6(2) (1960) 233) obtained for the enhancement factor for G–L systems with bulk. The analytical expression for the facilitation factor allows for arbitrary diffusivities of all species involved and does not contain any simplification or approximations. The facilitation factor starts from the value of unity, goes through a maximum and then reduces back to unity as the equilibrium constant is increased. The maximum facilitation factor occurs at higher values of the equilibrium constant as the ratio of the permeate-complex over carrier diffusivity is reduced whereas the maximum facilitation factor occurs at the same value of the equilibrium constant for all values of DA/DB (ratio of the permeate over carrier diffusivity). A similar behavior is seen for the flux of A as a function of the equilibrium constant. The facilitation factor remains constant with changes in the film thickness whereas the flux of A reduces with an increase in the thickness of the film. A linear increase of the facilitation factor and flux of A are seen with increasing initial carrier concentration.
Journal of Chemical Engineering & Process Technology | 2012
Nayef Ghasem; Mohamed Al-Marzouqi
In the present work porous poly (vinylidene fluoride) (PVDF) hollow fiber membranes were fabricated via thermally induced phase separation (TIPS) method for the application in gas-liquid membrane contactor. For this purpose long air gap distance was used (90 mm). Scanning electron microscopy (SEM) was used for membrane characterization. Gas permeation test was performed using carbon dioxide as test gas. It was observed that the effective surface porosity and membrane pore size increased with increased glycerol concentration. CO2 absorption using the fabricated hollow fiber membranes were measured in a gas-liquid hollow fiber membrane contactor. The results of the CO2 absorption rate of the tested fibers revealed that complete removal of CO2 was achieved using 7% glycerol added to the casted solution at normal operating conditions for equal gas to liquid volumetric flow rates using sodium hydroxide as absorbent liquid.
Separation and Purification Technology | 2008
Mohamed Al-Marzouqi; Muftah H. El-Naas; Sayed A.M. Marzouk; Mohamed A. Al-Zarooni; Nadia Abdullatif; Rami Faiz
Journal of Membrane Science | 2009
Rami Faiz; Mohamed Al-Marzouqi
Separation and Purification Technology | 2009
Saeid Rajabzadeh; Shinya Yoshimoto; Masaaki Teramoto; Mohamed Al-Marzouqi; Hideto Matsuyama
Separation and Purification Technology | 2008
Mohamed Al-Marzouqi; Muftah H. El-Naas; Sayed A.M. Marzouk; Nadia Abdullatif
Journal of Membrane Science | 2010
Sayed A.M. Marzouk; Mohamed Al-Marzouqi; Muftah H. El-Naas; Nadia Abdullatif; Zahoor M. Ismail
Separation and Purification Technology | 2011
Rami Faiz; Mohamed Al-Marzouqi
Journal of Membrane Science | 2010
Muftah H. El-Naas; Mohamed Al-Marzouqi; Sayed A.M. Marzouk; Nadia Abdullatif
Separation and Purification Technology | 2012
Nayef Ghasem; Mohamed Al-Marzouqi; Ali Duidar