Journal of Chemical Engineering & Process Technology
Open Access
ISSN: 2157-7048
+44-20-4587-4809
ISSN: 2157-7048
+44-20-4587-4809
Majeda Khraisheh, Abdulqader Alkhouzaam, Mert Atilhan, Shaheen A AlMuhtaseb, Letian Qi and David Rooney
Qatar University, Qatar
Queen's University Belfast, UK
Posters & Accepted Abstracts: J Chem Eng Process Technol
The concept of DPSILMs has been demonstrated here using polysulfone as the polymeric matrix. Four types of ionic liquids (ILs) were blended with polysulfone (PSF) to produce functional dense polymeric-supported ionic liquid membranes (DPSILMs). The prepared DPSILMs have been characterized using FT-IR and SEM, and both techniques showed that the selected ILs were successfully impregnated into the PSF and formed effective DPSILMs that can be treated like other dense membranes. It was also found that DPSILMs prepared in our lab were useful for the selective separation of CO2 at high pressures and gave promising results for CO2 separation from N2 and CH4 streams. The highest CO2 permeabilities (with CO2/N2 separation measurements) obtained with each IL were 19, 13.6, 10.8, and 8.9 barrer with PSF-25 wt% [N4441][formate], PSF-5 wt% [p4441][formate], PSF-0.5 wt% [DIP- C4mim][NTf2], and PSF-5 wt% [C4mim][NTf2] respectively. However with CO2/CH4 separation measurements, the highest CO2 permeabilities were 17.3, 13.8, 12.5, and 11.5 barrer with PSF-12.5 wt% [P4441][formate], PSF-2.5 wt% [DIP-C4mim][NTf2], PSF-0.5 wt% [N4441][formate], and PSF-2.5 wt% [C4mim][NTf2] respectively. Stability measurements of the synthesized DPSILMs were conducted regarding ILs loss. Stability results showed that DPSILMs with 5 wt% [P4441][formate] and [N4441][formate] showed about 30% and 20% ILs loss respectively at 10 bar after 12 hours; while no loss of [DIP-C4mim][NTf2] and [C4mim][NTf2] was observed.
Email: m.Khraisheh@qu.edu.qa