催化剂活性
- 网络catalyst activity;catalytic activity;activity of catalyst
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pH对催化剂活性影响显著,碱性条件下更利于氨氮和亚硝态氮的氧化还原反应。
Effect of pH value on catalyst activity was obvious and basic condition favored the coupled ammonia oxidation and nitrite reduction .
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FCCU平衡催化剂活性的软测量模型设计及其在DCS上的应用
Soft Measurement Model of FCCU Catalyst Activity and Its Application in DCS
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Al2O3对中温变换催化剂活性的影响
Effects of A1_2O_3 as Promoter on Catalytic Activity of CO Conversion Catalyst
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载体对Ni基催化剂活性和抗积炭性能的影响
Effect of Support on Resistance to Carbon-deposition of Nickel-based Catalysts for CO_2 Reforming of CH_4
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Co~Mo系加氢脱硫催化剂活性中心的动态氧吸附表征
Characterization of the Concentrations of Active Sites for Co-Mo HDS Catalysts by Dynamic Oxygen Chemisorption
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Fe2O3晶型对铁-铬系中温变换催化剂活性的影响
Effect of Fe_2O_3 Crystalline Phase on Activity of Fe-Cr system Medium Temperature Water-Gas Shift Catalysts
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用硫滴定方法表征Pt/Al2O3催化剂活性中心的性质
The nature of active centers of pt / al_2o_3 catalyst characterized by sulfur titration
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研究了Ce含量对Pd/Al2O3催化剂活性的影响。
The influence of Ce content on HDS activity of Pd-CeO2 / Al2O3 was studied .
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BR用镍系催化剂活性种制备技术的改进
Preparation process of active species of Ni catalyst system for br
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钴和镍对MoP/γ-Al2O3加氢精制催化剂活性的影响
Effect of CO and Ni on hydrotreating activity of mop / γ - al_2o_3 hydrofining catalyst
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制备条件对新颖负载型TiO2光催化剂活性的影响
Effect of Preparation Conditions on the Catalytic Activity of Novel Immobilized Photocatalyst
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发现Pd的添加方法不同,所得催化剂活性有差别。
It is found that the addition of Pd with different methods has influence on the performance of the catalysts .
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从化学反应的根本上实现了对催化剂活性的保护和对SO2、H2S的抑制。
Protection of catalyst activity and restraint against SO2 and H2S are realized thoroughly from chemical reaction .
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经过表面处理的载体制备的催化剂活性显著提高(COD去除率增加约10%)。
Activities of catalyst made by surface treated support were higher than not treated support ( COD removal increased about 10 % ) .
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ABC三元促进剂系统,甲醇最高转化率达746%,催化剂活性期是使用单一促进剂A的25倍。
Three-composite system ABC had the highest methanol conversion of 74.6 % and its active period was 2.5 times of single promoter A ' s.
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而CeO2则堆积在氧化铁表面,它对氧化铁晶粒的长大作用不大,它使催化剂活性大大提高必定有其它因素起作用。
There must be certain reasons for its improving the catalytic activity of the catalysts .
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在加入牺牲剂的体系下CdS对催化剂活性的影响起到了主要作用。
In the system with sodium sulfide and sodium sulfite as sacrificial agent , cadmium sulfide played a major role in the catalytic activity .
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浸渍顺序对Ag-Pd/Ce(0.8)Zr(0.2)O2催化剂活性及脱附性能的影响
Effect of Impregnation Sequence on Catalytic Activity and Desorption Property of Ag-Pd / Ce_ ( 0.8 ) Zr_ ( 0.2 ) O_2 Catalyst
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用活性炭载体吸附水的NMR参数讨论了载体的亲水性和催化剂活性的关系。
The activity of the catalyst is discussed with respect to the hydrophobic property of the support by the NMR parameters of water adsorbed on the support .
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该催化剂活性较高,明显优于粉体纳米TiO2光催化剂,重复使用10次左右,该催化剂的活性无明显下降。
The photocatalytic activity of the supported nanometer-sized TiO2 photocatalyst is significantly higher than that of TiO2 powder catalyst and decreased little after used for about 10 times .
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其中Y型分子筛和Hβ沸石之间具有仂、同作用,结果是催化剂活性和异构性能同时提高,原因可能是反应中间产物存在由HY向Hβ沸石的定向迁移现象。
The so called " synergistic effect " was caused by directional transfer of intermediate compounds from Y zeolite to H ~ zeolite , resulting in enhanced activity and isomerization reaction simultaneously .
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MgCl2晶型对丙烯聚合MgCl2载体催化剂活性的影响
Effects of crystal modifications of mgcl_2 on performance of supported catalyst for propylene polymerization
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结果表明,LST1液体硫转移助剂在典型的催化裂化工艺条件下,SOx脱除率达50%左右,对催化剂活性基本没有影响。
Under typical FCC operating conditions , the removal efficiency of SOx reaches 50 % and has little effect on activity of the catalyst .
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主要研究了助剂对Cu/SiO2催化剂活性、选择性和稳定性的作用及Cu/SiO2催化剂制备方法的影响。
In this dissertation , the effect of promoters on the performance of Cu / SiO2 catalyst and the preparation methods of supported copper catalyst were studied for the direct synthesis of indole .
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讨论了反应温度、压力和H2/CO2比对催化剂活性和选择性的影响,并用XPS和FT-IR对催化剂进行了表征。
The influence of the reaction conditions such as temperature , pressure and H2 / CO2 ratio on the catalytic properties were also well studied . XPS and FT-IR methods were used to characterize the catalyst .
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用H2脉冲色谱测定金属表面积的方法,研究了添加剂La2O3、MgO的添加量对甲烷水蒸汽转化催化剂活性组分镍的分散度的影响。
The influence of additives La 2O 3 , MgO on the Nickel dispersity of a steam-reforming catalyst was studied by means of hydrogen chemisorption on metallic surface .
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催化剂活性的高压微反评价结果显示,固定床Raney镍催化剂的2辛酮加氢催化活性高于负载型镍催化剂。
The activity evaluation results on high-pressure microreactor indicate that 2-octanone hydrogenating activity of fixed-bed Raney nickel catalyst is higher than that of the alumina-supported nickel catalysts .
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结果表明:催化剂活性位的Bronsted酸强度和空间结构是影响催化剂活性和选择性的主要因素。
Experimental results indicated that the catalytic activity was correlated closely with the acidity and the dimensional framework of the Bronsted acid site in catalysts .
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本论文通过对FeCrAl合金金属载体的表面预处理方法进行研究,在FeCrAl合金表面获得了能与γ-Al2O3催化剂活性涂层良好结合的无机过渡膜。
An inorganic transitional membrane , which can get fastness load of y-Al2O3 washcoat , is produced by FeCrAl alloy substrate surface pretreatment .
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结果表明催化剂活性的提高与铜物种在两种载体(CeO2和γ-Al2O3)上的价态(Cu2+和Cu+)、分散状态和吸附特性有关。
The results showed that the increase in catalytic activities is probably due to the presence of the copper oxide species with low valence , surface dispersion state and adsorption property .