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

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