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起始反应温度
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  initial reaction temperature
    It is found that the optimal reaction conditions for the reaction catalyzed by Ru-B/Sep are as follows:initial reaction temperature 393K, hydrogen pressure 3.5MPa, water/benzene ratio 1:1, amount of catalyst 0.1g, reaction time 20 minutes, amount of ZnSO_4 ?
    结果表明,对于Ru-B/Sep(酸改性海泡石)催化的苯选择性加氢制环己烯反应体系,最佳反应条件为:起始反应温度393K,反应压力3.5MPa,水/苯体积比为1(各10ml),催化剂用量0.1g,反应时间20min,七水合硫酸锌的用量0.3克。
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    Effects of Pd content and adding promoter to Pd/Al2O3 a talyst on the initial reaction temperature , reaction temperature, C2H2 selectivity and activity for C2H2 hydrogenation to C2H4 have been investigated.
    研究了乙炔加氢制乙烯Pd/Al_2O_3催化剂钯含量及助剂与起始反应温度及反应温度、加氢活性和选择性之间的关系.
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    The initial reaction temperature is higher with inlet NO concentration increase.
    炭黑的起始反应温度随着NO反应气浓度增大而升高;
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    The more heating rate results in better rate of NO reduction and lower initial reaction temperature.
    升温速率越大,NO 的脱除率越大,起始反应温度越低;
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    The more soot concentration results in better rate of NO reduction and lower initial reaction temperature.
    炭黑质量浓度越大,NO的脱除率越大,起始反应温度越低;
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  “起始反应温度”译为未确定词的双语例句
    Some PU elastomers with the hard segment content of 30% by weight, were prepared based on polyether polyol, butanediol and toluene diisocyanate at different starting reaction temperatures, i.e. 20 ℃ (sample S-1), 40 ℃ (sample S-2), 60 ℃ (sample S-3) and 80 ℃ (sample S-4) respectively.
    以聚醚多元醇、丁二醇和甲苯二异氰酸酯为原料 ,在不同起始反应温度下 (不用催化剂 )合成了一系列硬段含量为 30 %的聚氨酯弹性体 (PU) ,它们的起始反应温度分别为 2 0℃ (S -1 )、40℃ (S -2 )、6 0℃ (S -3)和 80℃ (S -4 )。
短句来源
    Morphology and Electrical Insulating Property of Polyurethane Elastomers Infulunce of Different Startimg Reaction Temperatures
    聚氨酯弹性体的形态结构和电性能研究不同起始反应温度的影响
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    We believe that there is key temperature that the mechanism of POM changes, the temperature is affected by the temperature of calcination、 reduction and starting reaction and the content of Ni of the catalyst and so on.
    POM反应机理在某温度点发生了改变,该温度点受到催化剂焙烧温度、还原温度、起始反应温度以及镍含量的影响。
短句来源
    Propane activation and conversion over supported vanadia base catalysts in the presence of oxygen were studied by Temperature Programmed Surface Reaction Time resolved Infrared Spectroscopy (TPSR TRIR).
    用 TPSR(程序升温表面反应 ) - TR(FT) IR技术 ,研究临氧条件下丙烷在负载型钒基催化剂上的活化和转化 ,并与催化剂的可还原性和表面酸性相关联 . 丙烷氧化脱氢生成丙烯与深度氧化生成 COx的起始反应温度相同 ;
短句来源
    Strong reducibility and surface acidity are favorable to activate the second C-H bond in propane molecule, and result in the lowering of ignition temperature of propane oxidative dehydrogenation and increasing of the propane conversion.
    催化剂的表面酸性位和强的可还原性 ,有利于丙烷中 C- H键的活化和临氧转化 ,降低起始反应温度和提高丙烷转化率 .
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  initial reaction temperature
For the identical initial reaction temperature, the maximum value of ethene yield through a stationary normal shock wave is less than that in a Heaviside function temperature field.
      
In the subsequent high-temperature solid-state reaction (900-930°C), the BaFe12O19 yield depends on the particle size of Fe2O3?, regardless of the initial reaction temperature.
      


Effects of Pd content and adding promoter to Pd/Al2O3 a talyst on the initial reaction temperature , reaction temperature, C2H2 selectivity and activity for C2H2 hydrogenation to C2H4 have been investigated. On the basis of above study, the catalyst 3HC-1 with high C2H2 selectivity (greater than 98%) has been prepared. The use life test for 500h shows that the activity of CHC-1 catalyst is stable.

研究了乙炔加氢制乙烯Pd/Al_2O_3催化剂钯含量及助剂与起始反应温度及反应温度、加氢活性和选择性之间的关系.在此基础上研制出高选择性(≥98%)的CHC-1型催化剂.500h连续实验结果表明:其活性、选择性均稳定.

The homopolymerization posthydrolysis of acrylamide initiated by a proper combined system is studied, then super high molecular weight polyacrylamide is obtained by using such an initiation system in aqueous solution, with molecular weight 25×10 6, hydrolytic degree can be adjusted between 20% and 30%, filter rate<1.3. The optimum homopolymerization posthydrolysis conditions are presented as pH 10.5~11.5, initial reaction temperature 2 ℃, monomer concentration 30%, initiation agent concentration 70×10 -6...

The homopolymerization posthydrolysis of acrylamide initiated by a proper combined system is studied, then super high molecular weight polyacrylamide is obtained by using such an initiation system in aqueous solution, with molecular weight 25×10 6, hydrolytic degree can be adjusted between 20% and 30%, filter rate<1.3. The optimum homopolymerization posthydrolysis conditions are presented as pH 10.5~11.5, initial reaction temperature 2 ℃, monomer concentration 30%, initiation agent concentration 70×10 -6 and chain transfer agent concentration 12×10 -6 .

采用新型复配引发体系,以丙烯酰胺为单体,通过均聚后水解方式聚合,合成出作为油田驱油剂用的超高相对分子质量聚丙烯酰胺.考察了影响合成超高Mr(聚丙烯酰胺)的因素,确定了聚合工艺:溶液的pH值为10.5~11.5,起始反应温度为2℃,w(单体)为30%,w(引发剂)为70×10-6,w(链转移剂)为12×10-6.在优化的聚合条件下,合成出相对分子质量高达25×106,水解度在20%~30%可调,过滤比小于1.3的聚丙烯酰胺.

Propane activation and conversion over supported vanadia base catalysts in the presence of oxygen were studied by Temperature Programmed Surface Reaction Time resolved Infrared Spectroscopy (TPSR TRIR). Oxidative dehydrogenation of propane to propene and deep oxidation of propane to CO x appeared to take place at the same temperature, while products C 2H 4 and CH 4 may be produced mainly from gas phase cracking of propane at high temperature. Strong reducibility and surface acidity are favorable...

Propane activation and conversion over supported vanadia base catalysts in the presence of oxygen were studied by Temperature Programmed Surface Reaction Time resolved Infrared Spectroscopy (TPSR TRIR). Oxidative dehydrogenation of propane to propene and deep oxidation of propane to CO x appeared to take place at the same temperature, while products C 2H 4 and CH 4 may be produced mainly from gas phase cracking of propane at high temperature. Strong reducibility and surface acidity are favorable to activate the second C-H bond in propane molecule, and result in the lowering of ignition temperature of propane oxidative dehydrogenation and increasing of the propane conversion. The adsorption of propene on acid sites leads to its total oxidation.

用 TPSR(程序升温表面反应 ) - TR(FT) IR技术 ,研究临氧条件下丙烷在负载型钒基催化剂上的活化和转化 ,并与催化剂的可还原性和表面酸性相关联 .丙烷氧化脱氢生成丙烯与深度氧化生成 COx的起始反应温度相同 ;而裂解产物 C2 H4和 CH4的生成温度比丙烷氧化脱氢生成丙烯的高得多 ,可能主要源于丙烷的高温气相裂解 .催化剂的表面酸性位和强的可还原性 ,有利于丙烷中 C- H键的活化和临氧转化 ,降低起始反应温度和提高丙烷转化率 .但强的可还原性也易导致氧化脱氢产物丙烯的进一步氧化 ,特别是酸性位对丙烯的吸附更易导致丙烯被进一步氧化

 
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