Transition Metal Sulfide Catalysts for Petroleum Upgrading – Hydrodesulfurization Reactions
نویسندگان
چکیده
منابع مشابه
Synthesis of Highly Active Ruthenium Sulfide Hydrodesulfurization Catalysts: Effect of Hydrogen in the Activation Process
In 1981 Pecoraro and Chianelli reported a complete study of catalytic behavior of transition metal sulfides catalysts in hydrodesulfurization (HDS) of dibenzothiophene (DBT) [1], in which was found a periodic tendency of the metallic sulfides activity, where ruthenium sulfide showed the highest HDS activity. These results were corroborated later by Raje et al. [2] and Liaw et al. [3], further s...
متن کاملMetal-sulfides and oxides on Au(111): From catalysis on nanoparticles to electronic structure of epitaxial 2D materials
We pursue the goal of providing fundamental atomistic understanding of metal oxide and metal sulfide nanostructures supported on metal substrates. Such systems are important as model systems for heterogeneous catalysts and allow better understanding of epitaxial 2D materials, such as MoS2 in contact with a metal. By focusing on what happens on the atomiclevel we can for example evaluate the rol...
متن کاملOverview of Phosphorus Effect in Molybdenum-Based Hydrotreating Catalysts Supported on Ordered Mesoporous Siliceous Materials
This chapter presents an overview of the literature on the effect of phosphorus modification of ordered mesoporous silica (OMS) such as MCM-41, HMS, SBA-15, and SBA-16 to be used as supports for hydrotreating catalysts based on transition metal sulfides (TMS). The influence of the support modification with variable quantities of phosphorus on the performance for hydrodesulfurization (HDS) and h...
متن کاملMechanism and Site Requirements of Thiophene Hydrodesulfurization Catalyzed by Supported Pt Clusters
Hydrodesulfurization (HDS) processes remove sulfur atoms from hydrocarbons by chemical reduction to hydrogen sulfide using H2 with transition metals and their sulfides as catalysts. Mechanistic and structural insights, concerning reaction pathways and catalysts, respectively, are required to design more effective HDS catalysts, with higher rates at lower H2 pressures, so as to meet emerging req...
متن کاملCo-Processing of Jatropha-Derived Bio-Oil with Petroleum Distillates over Mesoporous CoMo and NiMo Sulfide Catalysts
The co-processing of an unconventional type of Jatropha bio-oil with petroleum distillates over mesoporous alumina-supported CoMo and NiMo sulfide catalysts (denoted CoMo/γ-Al2O3 and NiMo/γ-Al2O3) was studied. Either a stainless-steel high-pressure batch-type reactor or an up-flow fixed-bed reaction system was used under severe reaction conditions (330–350 ◦C and 5–7 MPa), similar to the condit...
متن کامل