سال انتشار: ۱۳۸۹

محل انتشار: اولین کنفرانس ملی غشا و فرایندهای غشایی

تعداد صفحات: ۲

نویسنده(ها):

Shirin Asarehpour – Research Laboratory for Separation Processes, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
Mansour Kazemimoghaddam – Research Laboratory for Separation Processes, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
Afshin Pak – Research Laboratory for Separation Processes, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran
Toraj Mohammadi – Research Laboratory for Separation Processes, Faculty of Chemical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran

چکیده:

In this research, SAPO-34 membranes for CO2 separation have been synthesized via secondary growth method on mullite support for the first time. The ceramic supports wereprepared during calcination of kaolin clay, followed by a leaching post-treatment. Experiments were carried out at three levels of synthesistemperature: 185, 195 and 220 C. Single gas permeation properties of SAPO-34 membranes were studied and effect of synthesis temperature on CO2 and CH4 permeances and CO2/CH4 ideal separation selectivity were observed. All the gas separation experiments were conducted attwo levels of feed pressure:1 and 6 bar. The pure gas ideal separation factor for the synthesized membranes varied from from 5.78 at 185 C to 17.39 at 220C.