Toraj Mohammadi - Islamic Azad University, South Tehran Branch, Department of Chemical Engineering
Majid Badini Pour Azar - Tehran Refinary (Shahid Tond Gooyan), National Oil Product and Distillation Co., Tehran
Mansoor Kazemi Moghadam - Islamic Azad University, South Tehran Branch, Department of Chemical Engineering
Omid Bakhtiari - Research Center for Membrane Separation Processes Department of Chemical Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran,

Zeolite 13X powders are of the major categories of zeolites and have a great potential to be employed industrially in many applications including gas separation tasks, e.g. CO2 and H S removal form natural gas by separation by adsorption, especially for CO2Effects of SiO2 /Al2 O3,H2 O/Na2O3and H2 O/SiO2 molar ratios was investigated on13X zeolite hydrothermal synthesis. Prepared powders was characterized using XRD analysis It was found that silica source, synthesis temperatures, and H O/Na O molar ratios are affecting parameters in zeolite13X synthesis and its crystalinity The best result was found for 1 Al2 O3;2.9 SiO2:4.35Na2O;304.5H2O at synthesis temperature of 110°C in5 h with aging time of 24 h.

zeolite 13X synthesis Silica source type, molar ratio, synthesis temperature,characterization