Selective Transport of Propylene by Silver Ion Complex Through an Immobilized Liquid Membrane
نویسندگان
1 Center of Excellence for Petrochemical Engineering, Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
2 Center of Excellence for Petrochemical Engineering, Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
3 Petrochemical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Mahshahr Campus, Mahshahr, Iran
doi
چکیده
The separation of hydrocarbon mixture using facilitated transport membrane (an immobilized liquid membrane type) was investigated. A 50:50 (vol. %) propylene- propane mixture was used as a sample of the hydrocarbon mixture. The effect of trans-membrane pressure (in the range of 50-120 kPa) and carrier concentration (in the range of 0-20 wt.% AgNO 3 ) on separation performance was studied experimentally and mathematically. It was observed that increasing trans-membrane pressure and carrier concentration supports the separation factor and propylene permeation rate. On the other hand, increasing trans-membrane pressure and decreasing carrier concentration supports the propane permeation rate. Hence, the greater the trans-membrane pressure and carrier concentration, the more purified the product obtained. It was found that at trans-membrane pressure of 120kPa and carrier concentration of 20wt. %, the highest separation factor (270) and propylene permeation rate (7*10-7 mol/s) was obtained. The average deviation between the experimental and modeling results was found to be 5.3% for propylene permeation rate and 0.03% for propane permeation rate.
