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   烯烃加氢 在 无机化工 分类中 的翻译结果: 查询用时:0.106秒
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烯烃加氢
相关语句
  olefin hydrogenation
    COMMERCIAL APPLICATION AND IMPROVEMENT OF OLEFIN HYDROGENATION PROCESS IN HYDROGEN PRODUCTION AND SYNTHETIC AMMONINA UNIT
    烯烃加氢工艺技术在制氢及合成氨装置上的工业应用及改进
短句来源
    Study on apparent kinetics of C5 olefin hydrogenation
    抽余C5烯烃加氢制戊烷的表观动力学研究
短句来源
  olefin hydrogenation
    COMMERCIAL APPLICATION AND IMPROVEMENT OF OLEFIN HYDROGENATION PROCESS IN HYDROGEN PRODUCTION AND SYNTHETIC AMMONINA UNIT
    烯烃加氢工艺技术在制氢及合成氨装置上的工业应用及改进
短句来源
    Study on apparent kinetics of C5 olefin hydrogenation
    抽余C5烯烃加氢制戊烷的表观动力学研究
短句来源
  “烯烃加氢”译为未确定词的双语例句
    ACTIVITY AND STABILITY OF Cp 2TiCl 2/ n BuLi CATALYST SYSTEM FOR THE HYDROGENATION OF OLEFINS
    Cp_2TiCl_2/n-BuLi催化体系在烯烃加氢反应中的催化活性和稳定性
短句来源
    This paper expounds hydrogenation process and desulfurization process of refinery gaswhich replaces naphtha to preduce ammonia.
    论述了用来替代石脑油制氨的炼厂气烯烃加氢饱和和脱硫工艺。
短句来源
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  olefin hydrogenation
It was found that the uncatalyzed reactions of olefin hydrogenation by hydrogen dissolved in supercritical water occur at high rates near the critical point of water.
      
Catalysis of olefin hydrogenation and allylic isomerization by immobilized gold nanoclusters
      
Chelated amines as ligands in olefin hydrogenation catalysts
      
Catalytic olefin hydrogenation with the application of a new water soluble rhodium catalyst
      
The catalyst precursor preparedin situ from rhodium dimer [Rh(cod)Cl]2 and a new water-soluble phosphine Ph2PCH2CH2CONHC(CH3)2CH2SO3H (in Li+ salt form) has been found to act as an effective olefin hydrogenation catalyst.
      
更多          
  olefin hydrogenation
It was found that the uncatalyzed reactions of olefin hydrogenation by hydrogen dissolved in supercritical water occur at high rates near the critical point of water.
      
Catalysis of olefin hydrogenation and allylic isomerization by immobilized gold nanoclusters
      
Chelated amines as ligands in olefin hydrogenation catalysts
      
Catalytic olefin hydrogenation with the application of a new water soluble rhodium catalyst
      
The catalyst precursor preparedin situ from rhodium dimer [Rh(cod)Cl]2 and a new water-soluble phosphine Ph2PCH2CH2CONHC(CH3)2CH2SO3H (in Li+ salt form) has been found to act as an effective olefin hydrogenation catalyst.
      
更多          


This paper expounds hydrogenation process and desulfurization process of refinery gaswhich replaces naphtha to preduce ammonia. Compares is othermal hydrogenation scheme and recyclehydrogenation scheme,and draws the conclusion that the latter is stable and reliable. In addition,analy-ses the influence of two feedstocks operation on the existing ammonia plant.It is pointed out that set-ting the ACS system is necessary and important.

论述了用来替代石脑油制氨的炼厂气烯烃加氢饱和和脱硫工艺。对等温法加氢与循环法加氢方案进行了比较,指出采用循环法加氢是可靠稳妥的。分析了双原料操作对合成氨装置的影响,指出了设置ACS先进控制系统的必要性和重要性。

The effect of catalyst composition (Cp 2TiCl 2/ n BuLi) and titanium concentration on the activity and stability for the hydrogenation of olefins has been studied, among which the factor which influences the valence state of titanium active species is the key point. The hydrogenation of olefins with different structure as well as the influence of the reaction temperature and the substrate concentration have been investigated. The experimental results indicate that under suitable reaction conditions, the...

The effect of catalyst composition (Cp 2TiCl 2/ n BuLi) and titanium concentration on the activity and stability for the hydrogenation of olefins has been studied, among which the factor which influences the valence state of titanium active species is the key point. The hydrogenation of olefins with different structure as well as the influence of the reaction temperature and the substrate concentration have been investigated. The experimental results indicate that under suitable reaction conditions, the catalyst with high n (Li)/ n (Ti) ratio and low Ti concentration exhibits very high initial activity in the hydrogenation of olefins, e.g. , for the hydrogenation of 1 octene catalyzed by Cp 2TiCl 2/ n BuLi system, the initial TOF can be up to 63 s -1 , and the catalyst efficiency (turnover) may reach 7300 at -20℃; whereas the catalyst with low n (Li)/ n (Ti) ratio and high Ti concentration is a rather stable hydrogenation catalyst. The ESR spectrum shows that Ti(Ⅲ) still exists in the solution of Cp 2TiCl 2/ n BuLi system after ageing for 69 h. This catalyst system exhibits fairly good regional selectivity for the hydrogenation of isoprene.

研究了Cp2TiCl2/n-BuLi催化体系的构成和Ti浓度与其催化烯烃加氢反应活性和稳定性的关系.考察了不同结构的烯烃、反应温度和底物浓度对该体系催化性能的影响.结果表明,在高的n(Li)/n(Ti)值和低催化剂浓度时,可得到很高的催化活性.对1-辛烯的催化加氢,其TOF(initial)可高达63s-1,低温下催化剂效率(n(H2)/n(Ti))可达7300(-20℃,35min).在低的n(Li)/n(Ti)值和高催化剂浓度时,该催化体系具有较好的稳定性,陈化69h后,还有一定的活性,ESR谱显示有Ti(Ⅲ)存在.在催化异戊二烯加氢时,该催化剂表现出较好的区域选择性.

The relationship between the amount of Sn promoter、preparation method and activities of Pd Sn/resin catalysts has been studied.The action of Sn promoter in the catalysts were investigated by XPS、BET and XFSA.The results showed that the best Pd/Sn ratio was related with the method of supporting Pd and Sn.The results of XFSA and XPS showed that the amount of Pd on the Pd Sn/resin catalysts decreased with increasing amount of Sn.There was a...

The relationship between the amount of Sn promoter、preparation method and activities of Pd Sn/resin catalysts has been studied.The action of Sn promoter in the catalysts were investigated by XPS、BET and XFSA.The results showed that the best Pd/Sn ratio was related with the method of supporting Pd and Sn.The results of XFSA and XPS showed that the amount of Pd on the Pd Sn/resin catalysts decreased with increasing amount of Sn.There was a strong interaction between Pd and Sn on these catalysts.Sn promoter can decrease the Pd 3 d 5/2 bonding energy,which is advantageous to the activities of Pd Sn/cation exchange resin catalysts.

研究了Pd-Sn/树脂催化剂中Sn/Pd质量比和Sn助剂负载方法对催化剂催化性能的影响,并采用X光电子能谱(XPS)、X-射线荧光光谱分析(XFSA)以及BET比表面分析等手段对Sn助剂的作用进行了探讨。在Pd/树脂催化剂中Sn助剂的引入可提高催化剂的活性,然而其质量分数过高会影响活性金属的负载量而降低催化剂的二烯烃加氢和双键异构活性。Sn助剂的负载顺序也明显地影响Sn对催化剂的作用。采用先负载Sn助剂后负载Pd的方式,对提高催化剂催化活性有利。XPS、XFSA和BET研究表明,Sn助剂能改变Pd的电子状态,降低Pd3d5/2结合能,有利于加氢和异构活性的提高。另一方面Sn质量分数的增加和负载顺序的不同,影响催化剂表面Pd和Sn的相对含量,导致催化剂催化性能的改变

 
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