A unified theory of periodic and promotion effects in transition metal sulphate hydrodesulfurtization catalysts; a review of some specific phases as possible active hydrotreating constituents; catalytic sites and heterolytic reaction mechanisms in hydrotreating catalysis; microstructural characterization of molybdenum disulphide catalysts; STM and AFM studies of transition metal chalcogenides; HREM characterization of MoS2, MoS2:Co, and MoS2:Fe; on the identification of Co-sulphate species in sulfided supported Co and CoMo catalysts; properties of MoS2-based hydrotreating catalysts modified by electron acceptor additives (P, Na, Cs, F); modelling HDS catalysis with sulfido bimetallic clusters; evidence for H2S as active species in the mechanism of thiophene hydrodesulfurization; role of the sulfiding procedure on activity and dispersion of nickel catalysts; ruthenium sulphate based catalysts; comparison of sulfided CoMo AL2O3 catalysts in hydrodesulfurization of gas oil fractions and model compounds; competitive conversion of nitrogen and sulphur compounds in naphtha with transition metal sulphate catalysts; the effect of additives and impregnation stabilizers on hydrodesulfuritation activity; molten salt preparation of mixed transition metal on zirconia: application to hydrotreating reactions; the role of hydrogen in the hydrogenation and hydrogenolysis of aniline on the nickel single crystal surfaces: its applications on the mechanisms of HDN reactions; hydrodenitrogenation of carbazole on a alumina-supported molybdenum nitride catalyst; aromatics hydrogenation over alumina supported Mo and MiMo hydrotreating catalysts; applications of pillared and delaminated interlayered clays as supports for hydrotreating catalysts; catalytic hydrotrating with pillared synthetic clays; residual oil hydrotreating catalyst rejuvenation by leaching of foulkant metals: effect of metal leaching on catalyst characteristics and performance; characterization of coke on spent resid catalyst from ebullating bed service and its effect on activity; microbial removal of organic sulphur from fuels: a review of past and present approaches.
