Selective Separation of Thiophene Derivatives Using Metal-Organic Frameworks-Based Membranes
Ospanova A. Kassym K. Kanzhigitova D. Orazbek T. Ardakkyzy A. Toktarbay Z. Nuraje N.
15 October 2024American Chemical Society
ACS Omega
2024#9Issue 4142353 - 42360 pp.
The removal of sulfur compounds, particularly thiophene derivatives, from oil is crucial due to concerns about environmental issues. Therefore, the deep desulfurization of transportation fuels is currently an urgent problem, and numerous attempts have been made in this direction. Membrane-based desulfurization can be a good alternative to the traditional hydrodesulfurization method, which has several limitations. In this work, the use of membranes containing a metal-organic framework, MOF-5, doped with transition metals (Ag, Cu, Ni), in the adsorptive desulfurization process was studied. The efficiency of membranes was evaluated based on selective removal of thiophene and dibenzothiophene from model oil. Characterization techniques, including scanning electron microscopic (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA), confirmed the successful synthesis and incorporation of metal-organic frameworks (MOFs) into mixed matrix membranes (MMMs). Desulfurization experiments showed that MOF-5/Ag exhibited the highest thiophene adsorption efficiency (86.8%), outperforming MOF-5/Cu and MOF-5/Ni. The enhanced performance is attributed to the strong interaction between silver and sulfur. These findings demonstrate the potential of MOF-based MMMs for efficient and selective desulfurization, offering a viable alternative to traditional hydrodesulfurization (HDS) methods.
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Department of Chemical & Materials Engineering, School of Engineering & Digital Science, Nazarbayev University, Astana, 010000, Kazakhstan
Renewable Energy Laboratory, National Laboratory Astana, Nazarbayev University, Astana, 010000, Kazakhstan
Laboratory of Engineering Profile, Satbayev University, Almaty, 050000, Kazakhstan
Department of Chemical & Materials Engineering
Renewable Energy Laboratory
Laboratory of Engineering Profile
10 лет помогаем публиковать статьи Международный издатель
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