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.

  • 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。
  • 来源:互联网摘选更新时间:2026-07-13 00:28:00

  • 重点词汇
  • catalystn.<化>触媒,催化剂;〈比喻〉触发因素;促进因素;〈口〉有感染力的人;
  • preparationn.准备(工作);制剂;
  • CUabbr.Cambridge University 剑桥大学;
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • thispron.这,这个;这事,这人;这时;下面所说的事;
  • inprep. 在里面;在(某范围或空间内的)某一点;在(某物的形体或范围)中;在…内;在…中;进入
  • dissertationn. 专题论文,学位论文;学术演讲;
  • effectn.影响;效果;所有物;特效;
  • 相关例句
1、

Under typical FCC operating conditions, the removal efficiency of SOx reaches 50% and has little effect on activity of the catalyst.

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。

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2、

Effects of crystal modifications of mgcl_2 on performance of supported catalyst for propylene polymerization

MgCl2晶型对丙烯聚合MgCl2载体催化剂活性的影响

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3、

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.

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。

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4、

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.

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。

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5、

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.

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。

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6、

Effect of Impregnation Sequence on Catalytic Activity and Desorption Property of Ag-Pd/ Ce_ ( 0.8) Zr_ ( 0.2) O_2 Catalyst

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

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7、

In the system with sodium sulfide and sodium sulfite as sacrificial agent, cadmium sulfide played a major role in the catalytic activity.

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。

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8、

There must be certain reasons for its improving the catalytic activity of the catalysts.

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。

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9、

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.

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。

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10、

Activities of catalyst made by surface treated support were higher than not treated support ( COD removal increased about 10%).

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%)。

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11、

Protection of catalyst activity and restraint against SO2 and H2S are realized thoroughly from chemical reaction.

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。

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12、

It is found that the addition of Pd with different methods has influence on the performance of the catalysts.

发现Pd的添加方法不同,所得催化剂活性有差别。

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13、

Effect of CO and Ni on hydrotreating activity of mop/ γ-al_2o_3 hydrofining catalyst

钴和镍对MoP/γ-Al2O3加氢精制催化剂活性的影响

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14、

Preparation process of active species of Ni catalyst system for br

BR用镍系催化剂活性种制备技术的改进

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15、

The influence of Ce content on HDS activity of Pd-CeO2/ Al2O3 was studied.

研究了Ce含量对Pd/Al2O3催化剂活性的影响。

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16、

The nature of active centers of pt/ al_2o_3 catalyst characterized by sulfur titration

用硫滴定方法表征Pt/Al2O3催化剂活性中心的性质

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17、

Effect of Fe_2O_3 Crystalline Phase on Activity of Fe-Cr system Medium Temperature Water-Gas Shift Catalysts

Fe2O3晶型对铁-铬系中温变换催化剂活性的影响

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18、

Characterization of the Concentrations of Active Sites for Co-Mo HDS Catalysts by Dynamic Oxygen Chemisorption

Co~Mo系加氢脱硫催化剂活性中心的动态氧吸附表征

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19、

Effect of Support on Resistance to Carbon-deposition of Nickel-based Catalysts for CO_2 Reforming of CH_4

载体对Ni基催化剂活性和抗积炭性能的影响

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20、

Effects of A1_2O_3 as Promoter on Catalytic Activity of CO Conversion Catalyst

Al2O3对中温变换催化剂活性的影响

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