搜索结果: 1-15 共查到“石油与天然气工程 Al2O3”相关记录48条 . 查询时间(0.046 秒)
含分子筛NiMoP/Al2O3催化剂上邻二甲苯异构化的反应性能
NiMoP催化剂 分子筛 二甲苯 异构化
2018/4/3
以具有不同孔结构的微孔分子筛为酸性组分，制备了含分子筛的硫化态NiMoP/Al2O3催化剂。考察了临氢条件下邻二甲苯的异构化反应，采用XRD、N2吸附脱附、吡啶吸附红外和SEM等表征手段对分子筛及催化剂样品进行物化性质分析。结果表明，分子筛的孔结构和酸性中心的可接近性是影响该催化剂体系上邻二甲苯的反应活性及产物分布的主要因素。在反应温度为300℃、氢分压40 MPa、氢气/邻二甲苯（体积...
硫化温度对NiW/Al2O3催化剂加氢脱硫性能的影响
NiW/Al2O3 柠檬酸 硫化温度 加氢脱硫活性
2014/4/6
在氢分压4.0 MPa、523～723 K硫化温度范围内，考察了硫化温度对含和不含柠檬酸的NiW/Al2 O3催化剂的4,6-二甲基二苯并噻吩（4,6-DMDBT）加氢脱硫活性的影响，并采用X射线光电子能谱（XPS）和高分辨透射电镜（HRTEM）对硫化态催化剂进行了表征。结果表明，含柠檬酸的NiW/Al2 O3催化剂的加氢脱硫活性随硫化温度的变化规律与无柠檬酸催化剂相似，脱硫活性均在673 K时达...
Effect of Pd/TiO2–Al2O3 Catalyst Support on Naphthalene Hydrogenation in the Presence of CO
Chemical hydride method Naphthalene hydrogenation Adsorbed carbon monoxide Palladium catalyst Titania alumina support
2010/9/8
Hydrogenation of naphthalene in the presence of CO was examined as a step in the organic hydride method for utilizing low grade hydrogen. Development of CO-tolerant hydrogenation catalysts will allow ...
Fischer-Tropsch Synthesis on Ru/Mn/Al2O3 Catalysts: Effects of Manganese Loading
Manganese loading Ruthenium catalyst Catalyst activity Deactivation rate Fischer-Tropsch synthesis
2010/9/8
A series of Ru/Mn/Al2O3 catalysts with different concentrations of manganese were investigated on catalyst characterization and activity for Fischer-Tropsch synthesis in a continuous stirred tank reac...
Effect of Fractal Dimension on CO Selectivity of KW22;Ni/α-Al2O3 Catalyst for High Pressure Oxidative Reforming of Methane
Oxidative methane reforming Fractal dimension Orthogonal array Radial basis function network Multivariate analysis
2010/9/8
To suppress total oxidation and increase the CO selectivity of high-pressure oxidative reforming of methane, preparation parameters of KW22;Ni/α-Al2O3 catalyst were optimized. The target preparatio...
Catalytic Wet Oxidation of Phenol Using Regeneration of Pt/Al2O3
Carbonaceous material Wet oxidation Phenol Platinum catalyst Catalyst regeneration
2010/9/8
Removal of phenol by wet air oxidation was conducted with 1 wt% Pt/Al2O3 catalyst in a batch reactor and in a continuous flow fluidized bed reactor with air lift tube operated at 423 K and 1.4 MPa. Af...
Oxidative Cracking of Aromatic Compounds Related to Lignin Constituents with Steam Using ZrO2–Al2O3–FeOx Catalyst
Iron oxide catalyst Biomass Lignin-constituent aromatic Phenol Oxidative cracking
2010/9/8
The catalytic activity of iron oxide composite catalyst (ZrO2–Al2O3–FeOx) was investigated for converting aromatic compounds derived from plant biomass into useful aromatics. Catalytic cracking of lig...
Effects of Ruthenium Precursors on Ru/Mn/Al2O3 and Ru/Al2O3 Catalysts for Fischer-Tropsch Synthesis
Ruthenium precursor Ruthenium catalyst Fischer-Tropsch synthesis Catalyst activity Deactivation rate
2010/9/8
Ru/Mn/Al2O3 and Ru/Al2O3 catalysts, which prepared with various ruthenium precursors into impregnation method, were investigated for Fischer-Tropsch (FT) synthesis in a continuous stirred tank reactor...
Li掺杂对LaNi/Al2O3在焦油重整中催化性能的影响
LiLaNi/Al2O3
2009/11/16
采用浸渍法制备了LiLaNi/Al2O3催化剂，并用XRD, SEM, TPR等对其进行了表征. Li的加入对催化剂的结构、NiAl2O4的结晶度及Ni2+离子还原能力都有较大影响. 以甲苯为焦油的模型化合物，在固定床反应器中对高温焦炉煤气中焦油催化转化反应进行了评价. 结果显示，Li能显著改善LaNi/Al2O3催化剂的催化反应活性，提高产物中H2的含量. 在750℃、水/碳比为2.0的条件下，...
Selective Catalytic Reduction of NO with Fatty Acid Methyl Ester as Reductant over Ag/Al2O3 Catalyst
Nitrogen oxide Selective catalytic reduction Fatty acid methyl ester
2009/8/4
Selective reduction of NO using fatty acid methyl esters (FAMEs) as the reducing agents was investigated over 3 wt% Ag/Al2O3 catalyst. NO reduction with C6-C14 saturated FAMEs showed volcano-type temp...
Effects of Pore Size of Ru-Al2O3 Catalysts Prepared by Alkoxide Method on Fischer-Tropsch Reaction
Alkoxide method Fischer-Tropsch reaction Particle size Pore size
2009/8/4
10 wt%Ru-Al2O3 catalysts with uniform pore sizes in the range of 3-7 nm were prepared by the alkoxide method by changing the added amount of H2O highly diluted with butanol at the gelation stage of s...
Durability of Ru/CeO2/γ-Al2O3 Catalyst for Steam Reforming of Dodecane
Hydrogen production Dodecane Steam reforming Ruthenium catalyst
2009/8/4
Durability of the Ru/CeO2/γ-Al2O3 catalyst for steam reforming of dodecane was investigated using a packed bed type tubular reactor with multiple gas sampling ports along its length. The catalyst, bef...
Characterization of Co-Mo/Al2O3 Hydrodesulfurization Catalyst by 129Xe NMR Spectroscopy
129Xe NMR Cobalt molybdenum catalyst Sulfidation Co-Mo-S phase
2009/8/4
The present study evaluated 129Xe NMR spectroscopy for the analysis of Co-Mo/Al2O3 hydrodesulfurization catalyst. This study also reconsidered the conventional interpretation of 129Xe NMR spectroscop...
Steam Reforming of Dimethyl Ether over Cu/ZnO/ZrO2 and γ-Al2O3 Mixed Catalyst Prepared by Extrusion
Dimethyl ether Steam reforming Hydrogen production Copper zinc catalyst
2009/8/4
Steam reforming of dimethyl ether, DME, over Cu/ZnO/ZrO2 and γ-Al2O3 mixed catalysts prepared by the extrusion technique was investigated. The catalysts were characterized by BET, pore-size distribut...
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...