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Adsorptive Separation of Infinitesimal Sulfur Oxide in Naphtha —Reactivation of Silica Gel Using Toluene and Dimethyl Ether—
Oxidative desulfurization Adsorption Naphtha Dimethyl ether
2009/8/4
Adsorption of sulfur oxide is one of the key techniques for producing extra-low-sulfur content naphtha during oxidative desulfurization. Reactivation and repeated use of adsorbent are quite important...
Catalytic Performance of Noble Metals Supported on Mesoporous Silica MCM-41 for Hydrodesulfurization of Benzothiophene
Hydrodesulfurization Benzothiophene Noble metal catalyst MCM-41
2009/8/4
The catalytic performances of noble metals (Pt, Rh, Pd, Ru) supported on mesoporous silica MCM-41 were investigated for the hydrodesulfurization (HDS) of benzothiophene (BT). The order of HDS activit...
Catalytic Activities of Platinum Supported on Silica-modified Alumina for Hydrodesulfurization of Thiophene
Hydrodesulfurization Thiophene Platinum catalyst Silica modification
2009/8/4
Hydrodesulfurization (HDS) of thiophene over silica-modified alumina-supported platinum (Pt/SiO2-Al2O3) catalysts was examined. The HDS activity of a Pt/Al2O3 catalyst was enhanced by silica modifica...
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...
Synthesis of Mesoporous Silica Materials by Using Anionic Surfactants as Template
Mesoporous silica Anionic surfactant Chiral mesopore Amino acid
2009/7/28
Mesoporous materials have attracted a great deal of attention because of their controllable structures and compositions, which make them suitable for a wide range of applications in catalysis, enviro...
Catalytic Performance of Noble Metals Supported on Alumina-modified Silica Gel for Hydrodesulfurization Reaction
Hydrodesulfurization Thiophene Noble metal catalyst Alumina modification
2009/7/28
The catalytic activities and properties of noble metals (Pt, Pd, Rh, Ru) supported on silica gel (SiO2) and alumina-modified silica gel (Al2O3-SiO2) were investigated for the hydrodesulfurization of ...
Adsorption of Carbon Dioxide on Aminosilane-modified Mesoporous Silica
Carbon dioxide adsorption Aminosilane modified SBA-15 Mesoporous silica adsorbent
2009/7/27
Aminosilane-modified mesoporous silica was prepared by grafting various aminosilanes on mesoporous silica, SBA-15, and the applicability as a novel adsorbent for CO2 capture and separation from flue ...
Preparation of Silica-supported Nickel Catalyst by Fume Pyrolysis: Effects of Preparation Conditions of Precursory Solution on Porosity and Nickel Dispersion
Fume pyrolysis Sol-gel method Nickel catalyst Microporous silica support
2009/7/27
Ni/SiO2 catalysts were prepared by fume pyrolysis of Ni-silica sols prepared under different conditions, and the porosities and Ni dispersions were evaluated by comparison with catalysts prepared by ...
Hydrothermal Cracking of Furfural Extract into Middle Distillate Using Ni/Silica-alumina and Ni/Molecular Sieve Hybrid Catalyst
Furfural extract Hybrid catalyst Molecular sieve 13X
2009/7/24
Heavy residual products in petroleum refineries are a useful source of hydrocarbons, so are a potential substrate for producing middle distillates by hydrocracking technology to increase the supply ...
Sulfur Tolerance of Pd, Pt and Pd-Pt Catalysts Supported on Amorphous Silica
Noble metal catalyst Silica support Pore diameter Sulfur tolerance Aromatics hydrogenation
2009/7/24
Effect of pore structure of silica support on sulfur tolerance and tetralin hydrogenation activity of Pd, Pt and Pd-Pt catalysts was investigated. Pore diameter of SiO2 supports affected the sulfur t...
Catalyst Deactivation of High-silica ZSM-5 Zeolite Modified with Noble Metals during Vapor Phase Beckmann Rearrangement of Cyclohexanone Oxime
Beckmann rearrangement Catalyst deactivation High-silica zeolite
2009/7/24
High-silica ZSM-5 zeolites were synthesized by the addition of pentavalent ions, such as phosphorus and arsenic ions, to the mother gel for the zeolite preparation. The Beckmann rearrangement of cycl...
Bimodal Porous Silica Prepared by Pore-filling of Silica Sol
Bimodal pore structure BET surface area Pore volume
2009/7/23
A silica with bimodal pore structures was prepared by a simple method of introducing silica sol into the controlled large pores of original silica gel. The pores of the bimodal pore silica were distr...