Preparation and Characterization of Mixed-matrix Composite PDMS Membrane Based on UiO-66 Metal-organic Framework for the Desulfurization of Gasoline by Pervaporation Method

Document Type : Research Paper

Authors

1 Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran

2 Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology, Tehran, Iran

Abstract

In this study, the pervaporation method was used for the desulfurization of gasoline. Thiophene was used as a sulfur agent and n-heptane as a representative of hydrocarbon compounds in gasoline. Hybrid membranes were fabricated with active layers composed of polydimethylsiloxane (PDMS) and metal-organic framework UiO-66, together with support layers composed of polyvinylidene fluoride (PVDF). Scanning electron microscopy (SEM), Fourier transform infrared spectrum (FTIR) and X-ray diffraction (XRD) were used to characterize nanoparticles and synthesized membranes. Furthermore, the effect of UiO-66 incorporation on swelling and pervaporation performance of the hybrid membranes was evaluated. The optimal performance was achieved when the weight fraction of UiO-66 to PDMS was 8% with a flux of 10.73 kg.m-2h-1 (increased by 90% compared with the PDMS control membrane) and an enrichment factor of 3.96 (increased by 27% compared with the PDMS control membrane).
 

Keywords

References

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Journal of Petroleum Research
Volume 30, 99-6 - Serial Number 115
March and April 2021
Pages 66-77

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