Wednesday, March 18, 2015

An efficient eco-sustainable oxidative desulfurization process using μ-oxo-bridged Fe(III) complex of meso-tetrakis(pentafluorophenyl)porphyrin



An efficient eco-sustainable oxidative desulfurization process using μ-oxo-bridged Fe(III) complex of meso-tetrakis(pentafluorophenyl)porphyrin
Type
Journal Article
Author
António Aguiar
Author
Susana Ribeiro
URL
Volume
478
Pages
267-274
Publication
Applied Catalysis A: General
Date
May 20, 2014
Abstract
Describes an innovative process using a FeIII dimeric porphyrin as an active and efficient catalyst for the oxidative desulfurization of a multicomponent oil formed by the most refractory sulfur compounds in fuels, using the biphasic system model oil/extraction solvent.
Researchers synthesized the binuclear μ-oxodiiron(III) complex of meso-tetrakis(pentafluorophenyl)porphyrin μ-O(FeTPFPP)2. They observed μ-O(FeTPFPP)2 to achieve a complete desulfurization after 2 h when acetonitrile and methanol were used as extraction solvents, in the presence of a residual amount of H2O2 as oxidant, at room temperature. They evaluated catalytic efficiency of the porphyrin for each refractory sulfur compound following the order 1-BT > DBT > 4,6-DMDBT. The porphyrin presents a remarkable catalytic performance for the desulfurization of 1-BT when compared with other catalysts already reported in the literature.

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