SEPARATION OF THIOPHENE FROM THIOPHENE/N-HEPTANE MIXTURE BY USING COMPOSITE MEMBRANES WITH ACTIVE LAYER OF PVP/PEG ON PES SUPPORT MEMBRANE

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MORTAZAVI M.; MORTAHEB H.R.; BARZIN J.

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Journal: Journal of Applied Research in Chemistry Year:2014 | Volume:8 | Issue:2 Page(s): 53-63

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Information Journal Paper

Title

SEPARATION OF THIOPHENE FROM THIOPHENE/N-HEPTANE MIXTURE BY USING COMPOSITE MEMBRANES WITH ACTIVE LAYER OF PVP/PEG ON PES SUPPORT MEMBRANE

Author(s)

MORTAZAVI M. | MORTAHEB H.R. | BARZIN J. | Issue Writer Certificate

Keywords

DESULFURIZATIONQ2

COMPOSITE MEMBRANEQ2

POLYVINYL PYRROLIDONEQ1

POLYETHER SOLFUNE SUPPORT LAYERQ2

PERVAPORATIONQ2

Abstract

Composite membranes with active layer of POLYVINYL PYRROLIDONE/polyethylene glycol (PEG/PVP) blend with various mass ratios were manufactured on polyether solfune (PES) support layers and were applied in a pervaporative process for removal of thiophene from its mixture with normal heptane. The high-porous PES support membranes were prepared by Leob-Surirajan phase inversion technique, and their porosities were improved by adding hydrophilic additive of PVP to the polymer solution. The manufactured membranes were characterized using swelling test, SEM, and AFM imaging. The novel COMPOSITE MEMBRANEs exhibited unique features due to hydrogen bonding between the carbonyl groups of PVP and the hydroxyl groups of PEG as well as between the sections in the PEG structure in the range of 31-41 wt% PEG. The performances of the membranes under various operating conditions such as temperature, thiophene concentration, and PEG content in the active layer were investigated. The results indicates that the PVP/PEG COMPOSITE MEMBRANEs have superior performances over previously manufactured membrane for removal of thiophene in terms of enrichment factor and permeate flux. Further studies on PVP/ PEG COMPOSITE MEMBRANEs can provide helpful suggestions for pervaporative DESULFURIZATION of the refinery products.

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APA: Copy

MORTAZAVI, M., MORTAHEB, H.R., & BARZIN, J.. (2014). SEPARATION OF THIOPHENE FROM THIOPHENE/N-HEPTANE MIXTURE BY USING COMPOSITE MEMBRANES WITH ACTIVE LAYER OF PVP/PEG ON PES SUPPORT MEMBRANE. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 8(2), 53-63. SID. https://sid.ir/paper/180151/en

Vancouver: Copy

MORTAZAVI M., MORTAHEB H.R., BARZIN J.. SEPARATION OF THIOPHENE FROM THIOPHENE/N-HEPTANE MIXTURE BY USING COMPOSITE MEMBRANES WITH ACTIVE LAYER OF PVP/PEG ON PES SUPPORT MEMBRANE. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2014;8(2):53-63. Available from: https://sid.ir/paper/180151/en

IEEE: Copy

M. MORTAZAVI, H.R. MORTAHEB, and J. BARZIN, “SEPARATION OF THIOPHENE FROM THIOPHENE/N-HEPTANE MIXTURE BY USING COMPOSITE MEMBRANES WITH ACTIVE LAYER OF PVP/PEG ON PES SUPPORT MEMBRANE,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 8, no. 2, pp. 53–63, 2014, [Online]. Available: https://sid.ir/paper/180151/en

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