Desulfurization of diesel via the H2O2 oxidation of aromatic sulfides to sulfones using a tungstate catalyst

Oxidative processes of desulfurization of liquid fuels

“…For this reason, the addition of catalysts that can oxidize the sulfur compound more efficiently was necessary. The most common option is the use of transition metal salts, and specifically tungsten salts 14,15 which are very active and selective in the oxidation of sulfur compounds with peracids. Modified active carbons are also catalysts for this reaction.…”

Desulfurization of model diesel by extraction/oxidation using a zinc-substituted polyoxometalate as catalyst under homogeneous and heterogeneous (MIL-101(Cr) encapsulated) conditions

“…Hydrogen peroxide is usually the preferred oxidant not only due to its high oxygen content but also because of its environmental compatibility [26]. A lot of work has been performed on the oxidation of various organic substrates using H 2 O 2 as oxidant and POMs as catalysts [27][28][29][30].…”

Deep oxidative desulfurization of fuels catalyzed by pristine simple tungstic acid

“…Various ODS systems have been reported, such as acetic acid/H 2 O 2 [8], formic acid/H 2 O 2 [9], polyoxometalates/H 2 O 2 [10][11][12], aldehyde/O 2 [13], TS-1/H 2 O 2 [14]. Besides oxygen, hydrogen peroxide is the most economical and environmentally benign oxidant and its use is attractive in fuel desulfurization.…”