Membrane-Supported Layered Coordination Polymer as an Advanced Sustainable Catalyst for Desulfurization
authors Mirante, F; Mendes, RF; Faria, RG; Cunha-Silva, L; Paz, FAA; Balula, SS
nationality International
journal MOLECULES
author keywords catalytic membrane; layered coordination polymer; oxidative desulfurization; hydrogen peroxide; lanthanides
keywords METAL-ORGANIC FRAMEWORK; OXIDATIVE DESULFURIZATION; FOSSIL-FUELS; MODEL DIESEL; SULFUR; POLYOXOMETALATE; PERFORMANCE; FUTURE
abstract The application of a catalytic membrane in the oxidative desulfurization of a multicomponent model diesel formed by most refractory sulfur compounds present in fuel is reported here for the first time. The catalytic membrane was prepared by the impregnation of the active lamellar [Gd(H(4)nmp)(H2O)(2)]Cl center dot 2H(2)O (UAV-59) coordination polymer (CP) into a polymethyl methacrylate (PMMA, acrylic glass) supporting membrane. The use of the catalytic membrane in the liquid-liquid system instead of a powder catalyst arises as an enormous advantage associated with the facility of catalyst handling while avoiding catalyst mass loss. The optimization of various parameters allowed to achieve a near complete desulfurization after 3 h under sustainable conditions, i.e., using an aqueous H2O2 as oxidant and an ionic liquid as extraction solvent ([BMIM]PF6, 1:0.5 ratio diesel:[BMIM]PF6). The performance of the catalytic membrane and of the powdered UAV-59 catalyst was comparable, with the advantage that the former could be recycled successfully for a higher number of desulfurization cycles without the need of washing and drying procedures between reaction cycles, turning the catalytic membrane process more cost-efficient and suitable for future industrial application.
publisher MDPI
isbn 1420-3049
year published 2021
volume 26
issue 9
digital object identifier (doi) 10.3390/molecules26092404
web of science category 14
subject category Biochemistry & Molecular Biology; Chemistry, Multidisciplinary
unique article identifier WOS:000650682800001
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journal analysis (jcr 2019):
journal impact factor 3.267
5 year journal impact factor 3.589
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