搜索结果: 1-13 共查到“石油与天然气工程 surface”相关记录13条 . 查询时间(0.187 秒)
Comparison of Genetic Programing, Radial Basis Function Network and Polynomial Equation Used for Response Surface Method for Catalyst Optimization
Genetic programing Cobalt-magnesia catalyst Methane dry reforming
2009/8/4
Preparation conditions of Co-MgO catalyst for methane dry reforming were optimized to maximize the CO yield. Response surface method, composed of design of experiment and regression method, was appli...
Influence of Preparation Factors on Ca/P Ratio and Surface Basicity of Hydroxyapatite Catalyst
Hydroxyapatite Calcium/phosphorus ratio Basicity Basic site density
2009/8/4
We aimed at precision control of the basicity of hydroxyapatite (Ca10(PO4)6(OH)2; HAP) and paid attention to four key factors in the synthesizing process—the solution's Ca/P ratio, pH, temperature and...
Effects of Surface Modification of H-ZSM-5 Catalysts on Direct Transformation of Ethanol into Lower Olefins
Ethanol Propylene Direct synthesis Lanthanum modified H-ZSM-5
2009/8/4
Various H-ZSM-5 catalysts were assessed for ethanol conversion into lower olefins. Ethanol was converted to lower olefins over H-ZSM-5 catalyst without modification. The selectivities for ethylene an...
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 ...
Investigation of Sulfur Behavior on Mo-based Hydrodesulfurization Catalysts Supported on High Surface Area TiO2 by 35S Radioisotope Tracer Method
Hydrodesulfurization High surface area titania Molybdenum catalyst
2009/7/27
Mo catalysts were prepared by impregnation of titania synthesized by the pH swing method which provides a TiO2 carrier with a high specific surface area (134 m2·g−1) and excellent mechanical pr...
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...
Observation of Stepwise Association of Petroleum-derived Asphaltene and Maltene Components by Surface Tension Measurements
Asphaltene Maltene Surface tension Stepwise association Micelle
2009/7/24
The association behaviors of asphaltene (heptane insoluble fraction) and maltene (heptane soluble fraction) fractionated from Iranian Light (IL) vacuum residue were investigated by measuring the surf...
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...
Hydrogenation of Dicarboxylic Acid Diesters to Corresponding Dialdehydes over ZrO2 Based Catalysts (Part 2) Analysis of Catalyst Surface Using Diffuse Reflectance FT-IR and CP/MAS 13C-NMR Spectroscopy
Diester hydrogenation Zirconia catalyst FT-IR Reaction mechanism
2009/7/24
The adsorption species on ZrO2 or Cr-ZrO2 catalyst in the hydrogenation of dimethyl benzenedicarboxylates as well as benzoic acid were characterized by diffuse reflectance FT-IR and CP/MAS 13C-NMR spe...
Photocatalytic Degradation of Organic Compounds on TiO2 Powders —FT-IR Investigation of Surface Reactivity and Mechanistic Aspects—
Photodegradation Organics Titanium (IV) oxide TEM
2009/7/24
This review examines a series of studies investigating the molecular phenomena occurring on the surface of TiO2, in the dark and under ultra violet spectroscopy (UV) irradiation, in processes intended...
Drill pipe failure prevention-Corrosion protection with drill pipe surface coating and management of drill pipe use with fatigue database-
zinc coating drill pipe fatigue database Von Mises Stress
2009/5/6
Drill pipe failure is a very serious problem for Teikoku Oil Company(TOC) to continue deep well drilling. Then TOC has continued to carry out research in order to avoid this trouble and started some ...
Subsidence and horizontal earth surface movement during reservoir depletionfor 3D reservoirs with 3D earth surface
subsidence horizontal movement boundary element model 3D reservoir shape
2009/5/6
Oil or gas production causes reservoir depletion. It occasionally induces reservoir compaction and subsidence and horizontal earth surface movement. Oil and Gas are found in 3D shape structures such...