搜索结果: 1-15 共查到“工学 alumina”相关记录29条 . 查询时间(0.062 秒)
Kinetic and Isotherms Adsorption of the Palm and Andiroba Vegetable Oils on γ-Alumina
Palm and Andiroba Vegetable Oils γ-Alumina
2016/6/2
Vegetable oils refining process purpose is the removal of free fatty acids, phospholipids, trace of metals, peroxides, aldehydes, carotenes, sterols and others compounds, that affect the flavor or oxi...
Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts
ultrasonication methanol DME &gamma -Al2O3 CuO ZnO
2014/3/24
The catalytic conversion of methanol to dimethylether (DME) was studied over CuO/Al2O3, ZnO/Al2O3 and ZnO-CuO/Al2O3 nanocatalysts prepared in presence or absence of ultrasonic irradiation. The catalys...
NiMo/γ-Al2O3 Catalysts from Ni Heteropolyoxomolybdate and Effect of Alumina Modification by B, Co, or Ni（图）
nickel cobalt boron nickel heteropolyoxomolybdate hydrodesulfurization
2013/10/7
A hydrotreating NiMo/γ-Al2O3 catalyst (12 wt% Mo and 1.1 wt% Ni) was prepared by impregnation of the support with the Anderson-type heteropolyoxomolybdate (NH4)4Ni(OH)6Mo6O18. Before impregnation of t...
Two-dimensional finite element simulation of fracture and fatigue behaviours of alumina microstructures for hip prosthesis
alumina crack finite element fatigue fracture ceramic microstructure
2012/4/19
This paper describes a two-dimensional (2D) finite element simulation for fracture and fatigue behaviours of pure alumina microstructures such as those found at hip prostheses. Finite element models a...
Synthesis of 2-Substituted Benzimidazoles and 1,5-Disubstituted Benzodiazepines on Alumina and Zirconia Catalysts（图）
2-substituted benzimidazoles 1,5-disubstituted benzodiazepines manganese oxide alumina zirconia
2013/10/8
In this study, alumina, zirconia, manganese oxide/alumina, and manganese oxide/zirconia have been investigated for their catalytic activity in the condensation reaction between o-phenylenediamine and ...
Catalytic methanation reaction over alumina supported cobalt oxide doped noble metal oxides for the purification of simulated natural gas
natural gas cobalt oxide noble metal catalyst methanation reaction
2014/7/24
A series of alumina supported cobalt oxide based catalysts doped with noble metals such as ruthenium and platinum were prepared by wet impregnation method. The variables studied were difference ratio ...
The Role of Vanadia for the Selective Oxidation of Benzyl Alcohol over Heteropolymolybdate Supported Alumina Catalysts（图）
molybdophosphoric acid vanadia alumina oxidation benzyl alcohol
2013/10/10
A series of 12-molybdophosphoric acid (MPA) supported on V2O5 dispersed γ-Al2O3 catalysts with different vanadia loadings were prepared by impregnation and characterized by N2 adsorption-desorption, X...
Nanosized Unsupported and Alumina-Supported Ceria-Zirconia and Ceria-Terbia Solid Solutions for CO Oxidation（图）
ceria zirconia terbia alumina-support deposition coprecipitation CO oxidation
2013/10/13
Ceria-zirconia (CZ) and ceria-terbia (CT) and alumina-supported ceria-zirconia (CZA) and ceria-terbia (CTA) solid solutions were synthesized by coprecipitation and deposition precipitation methods, re...
Structural analysis of anodic porous alumina used for resistive random access memory
Structural analysis anodic porous alumina resistive random access memory
2010/10/12
Anodic porous alumina with duplex layers exhibits a voltage-induced switching effect and is a promising candidate for resistive random access memory. The nanostructural analysis of porous alumina is i...
Chemical Mechanical Polishing of Glass Substrate with α-Alumina-g-Polystyrene Sulfonic Acid Composite Abrasive
chemical mechanical polishing glass substrate α-alumina graft polymerization
2011/8/3
Abrasive is the one of key influencing factors during chemical mechanical polishing(CMP) process. Currently, α-Alumina (α-Al2O3) particle, as a kind of abrasive, has been widely used in CMP slurries, ...
Employment of alumina suspension pad for v-bending of SUS304 strip
Plastic forming Sheet metal forming Bending
2009/12/2
Purpose: Authors have suggested employment of dilatant fluid for metal forming tools, and report an application
on v-bending of thin stainless steel strips in this paper.
Design/methodology/approach...
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...
Comparison by 35S Radiotracer Methods of Hydrodesulfurization Behavior for Molybdenum, Cobalt-Molybdenum and Nickel-Molybdenum Catalysts Supported on γ-Alumina and High Specific Surface Area Titania
Hydrodesulfurization Dibenzothiophene γ-Alumina High surface area titania
2009/7/28
The differences between MoS2, CoMoS and NiMoS HDS catalysts supported on γ-alumina and high SSA titania are investigated based on the results of [35S]DBT HDS experiments. Previous studies of MoS2 and ...
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...
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 ...