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Effect of Yb Loading on Aromatic Hydrogenation Activity of Pd-Pt/USY Zeolite Catalysts
Palladium platinum catalyst USY zeolite Ytterbium modification
2009/8/4
A series of bimetallic palladium-platinum (molar ratio Pd : Pt=4 : 1) catalysts supported on ytterbium (Yb)-modified ultrastable Y (USY) zeolite, Pd-Pt/Yb-USY, were prepared and characterized to inve...
Catalytic Hydrogenation of 2-Butyne-1,4-diol: Activity, Selectivity and Kinetics Studies
Selective hydrogenation 2-Butyne-1,4-diol 2-Butene-1,4-diol
2009/8/4
The reaction pathway for hydrogenation of 2-butyne-1,4-diol involves parallel and consecutive isomerization as well as hydrogenation reactions forming other side products along with cis-2-butene-1,4-...
Additive Effect of Mn on Catalytic Activity of Ru/Al2O3 for Fischer-Tropsch Synthesis
Manganese addition Ruthenium catalyst Fischer-Tropsch synthesis
2009/8/4
Ru/Al2O3 catalyst was investigated by using Mn addition for Fischer-Tropsch synthesis under pressurized conditions. On the basis of catalyst activity, selectivity and deactivation, small amount of Mn...
Effects of Ru Precursors on Activity of Ru-SiO2 Catalysts Prepared by Alkoxide Method in Fischer-Tropsch Synthesis
Alkoxide method Fisher-Tropsch reaction Ruthenium precursor
2009/8/4
Ru-SiO2 catalysts with uniform structure were prepared by the alkoxide method using various Ru precursors, and used to catalyze the Fischer-Tropsch (F-T) synthesis in the slurry phase under the react...
Control of Macropore Structure of Hydrocracking Catalyst by Silica-alumina Particle Size and Influence on Hydrocracking Activity and Middle Distillate Selectivity
Hydrocracking Diffusivity Macropore structure Particle size Middle distillate selectivity
2009/7/28
Hydrocracking (HC) catalysts consisting mainly of silica-alumina and a small amount of ultra stable Y type (USY) zeolite were prepared with silica-alumina powders of different mean particle sizes, an...
Oxidation of Ethane over Silicomolybdic Acid Catalysts: Catalytic Activity for Homogeneous and Heterogeneous Pathways
Ethane oxidation Silicomolybdic acid Molybdenum oxide catalyst
2009/7/28
Ethane oxidation was examined over silica supported silicomolybdic acid (SMA) catalysts under conditions described as excellent for partial oxidation to investigate the catalytic activities in the pr...
Development of Hydrodesulfurization Catalysts Using Molybdenum Complex with Molybdenum-sulfur Bonds (Part 1) Effect of Activation Method on Catalytic Activity
Hydrodesulfurization Dibenzothiophene Molybdenum dithiocarbamate
2009/7/24
The catalytic precursors of alumina-supported molybdenum dithiocarbamate (Mo-DTC) and molybdenum dithiophosphate (Mo-DTP) were assessed as catalysts for hydrodesulfurizastion (HDS). The effect of the...
Effect of Polyethylene Glycol Addition on Hydrodesulfurization Activity over CoO-MoO3/Al2O3 Catalyst
Cobalt molybdenum catalyst Hydrodesulfurization Polyethylene glycol
2009/7/24
A new additive approach using polyethylene glycol (PEG) as a water soluble organic compound was proposed to improve hydrodesulfurization activity over CoO-MoO3/Al2O3 catalyst. The addition of PEG to ...
Catalytic Activity of Iron Oxides Supported on γ-Al2O3 for Methane Oxidation
Iron oxide catalyst Goethite Hematite catalyst Alumina support
2009/7/24
Three kinds of catalysts of goethites supported on γ-Al2O3 (Fe/γ-Al2O3), SiO2-Al2O3 (Fe/SiO2-Al2O3) and SiO2 (Fe/SiO2) were investigated in terms of the catalytic activity of methane oxidation. The sp...
Titanium Modified USY Zeolite-based Catalysts for Hydrocracking Residual Oil (Part 3) Preparation and Activity Test of Catalysts Based on Realuminated USY
Hydrocracking Realuminated USY zeolite Titanium modification
2009/7/24
A high Si/Al ratio USY zeolite with high mesoporosity was used as the starting material for hydrocracking catalysts for residual oil to improve the catalytic selectivity for middle distillate fractio...
Effects of trans-1,2-Cyclohexanediamine-N,N,N',N'-tetraacetic Acid Addition on 1-Octene Hydrogenation Activity and Surface Structure of CoMo/Al2O3 Catalyst
1-Octene hydrogenation trans-1,2-Cyclohexanediamine
2009/7/24
The present study investigated the effects of trans-1,2-cyclohexanediamine-N,N,N',N'-tetraacetic acid (CyDTA) addition on the 1-octene hydrogenation activity and surface structure of CoMo/Al2O3 catal...
Effects of Co Addition on the Surface Structure and the Activity of Mo/Al2O3 Catalyst for the Hydrogenation of Olefins
Olefin hydrogenation Steric hindrance Cobalt molybdenum catalyst
2009/7/24
The present study investigated the effects of Co addition on the surface structure and activity of Mo/Al2O3 for the hydrogenation of C6-C10 olefins. CoMo/Al2O3 (Co/Mo atomic ratio: 0.56) had lower ac...
Activity and Surface Structure of Sulfided NiW/Al2O3 Catalyst: Effects of Chelating Agents on the Catalytic Activity for the Hydrogenation of Tetralin and o-Xylene
Tetralin hydrogenation Xylene hydrogenation Nickel tungsten catalyst
2009/7/24
The present study investigated the effects of chelating agents on the aromatic hydrogenation activity and the surface fine structure of NiW/Al2O3 catalyst. NiW/Al2O3 catalyst was prepared from impreg...
Promotion of Catalytic Activity and Suppression of Deactivation by Solvent Addition in the Hydrotreating of Atmospheric Residue
Atmospheric residue Hydrotreating Water addition Hydrodesulfurization
2009/7/24
The effect of addition of several solvents on atmospheric residue (AR) hydrotreating was examined in the autoclave test. Higher hydrodesulfurization (HDS) activity was obtained by adding solvents in t...
Titanium Modified USY Zeolite-based Catalysts for Hydrocracking Residual Oil（Part1）Preparation and Activity Test of Molybdenum Supported Catalysts
Hydrocracking Titanium modification USY zeolite Residual oil Mesopore
2009/7/23
New USY zeolite-based hydrocracking catalysts were developed to meet the increasing demand for producing clean middle distillates from residual oil. Titanium modified USY zeolite was prepared by trea...