Deep desulphurization of gas oil and model compounds by an anatase nanocomposite sandwich-type polyoxometalate as a novel, reusable and green nano mercaptan scavenger

Abstract

The oxidative desulphurization of gas oil and model compounds that exist in gas oil with hydrogen peroxide/acetic acid using nanoparticle (Bu 4N)7H3[P2W18Cd 4(Br)2O68]-TiO2 ((Bu 4N)7H3[P2W18Cd 4]-TiO2) as a nano scavenger has been studied. This sandwich-type nanoparticle was shown to be able to scavenge hydrogen sulphide and mercaptans in high yields. The addition of acetic acid enhanced the conversion. This system provides an efficient, convenient and practical method for scavenging sulphur compounds. The (Bu4N)7H 3[P2W18Cd4]-TiO2 nanoparticle was a very active catalyst system for the oxidation of model compounds, while other polyoxometalate systems were much less active.