查询词典 hydrogenation

Compared with the double bond of cyclopentene ring, the double bond of the norbornene ring has much more lower activation energy in the hydrogenation and the main intermediate product is 14,15-DHTCPD.

非晶态合金催化剂晶化过程的原位分析结果表明，在热处理温度低于150°C条件下其结构基本保持稳定，而高于450°C条件下热处理后晶化度大于90%，600°C以上热处理后完全晶化。

Dicyclopentadiene ; Cyclopentadiene ; Raney Nickel ; Liquid hydrogenation ; Cyclopentene

双环戊二烯；环戊二烯；骨架镍；液相加氢；环戊烯

Manufacturing benzene by hydrogenation dealkylation can be a reliable raw material source for styrene plant.

结合甲苯的用途和大庆石油化工总厂的装置现状熏探讨了甲苯的利用途径，通过加氢脱烷基制苯，为苯乙烯装置提供原料。

The research results indicate that the main reaction from the hydrodeoxygenation of decanoyl/octanoyl-glycerides on the catalysts include hydrogenation saturation,decarboxylization,isomerization and hydrocracking.The main product is alkane.On the Pt/SAPO-11 catalyst,the products composition of HDO f...

结果表明：辛癸酸甘油酯在加氢催化剂上的反应包括加氢饱和、脱羧、异构化和裂化反应，主要产物为烷烃；采用Pt/SAPO-11催化剂的催化加氢产物中异构化烷烃比例明显提高，脱羧反应和裂解反应得到明显抑制。

Generally, they were used as the catalysts for the hydrogenation and dehydrogenation reaction.

作为催化剂，它主要应用于加氢和脱氢反应中。

The insufficiencies of current models for the hydrogenation/dehydrogenation are analyzed and summarized,and the development trends for future research are proposed.

最后对现有模型存在的不足作出了总结，并对未来的金属氢化物氢化/脱氢反应动力学模型研究进行了展望。

The improving thermal stability of amorphous alloys could be favored to the hydrogenation and dehydrogenation.

提高非晶态合金的热稳定性，对加氢与脱氢反应均有利。

In order to reduce the cost more and accelerate the application in the civil area, the laser rapid forming technology with low cost hydrogenation dehydrogenization titanium alloy powders had been investigated, and the following results were obtained:1 Disclosed the formation mechanisms and influencing factors of t.

为进一步降低该技术的成本，促进其在民用领域的发展，本文针对低成本氢化脱氢(hydrogenmiondehydrogenization，HDH)钛合金粉末的激光快速成形进行研究，取得的主要成果如下： 1。从粉末特性及成形工艺角度揭示了缺陷的形成机理及影响因素，结果发现：(1)气孔的产生是由于粉末在成形过程中卷入成形气氛中的氩气所致。

The poisoning effects of alkyl sulfur compounds on the reactivity of isoprene hydrogenation over supported Pd catalyst are more and more serious with the decrease of the molecular mass of alkyl thiols and dialkyl disulfides.

乙硫醇和二甲基二硫醚使Pd／树脂催化剂中毒的机理是，它们分别在催化剂上发生SH和S-S键断裂，并与Pd形成带烷基基团的S-Pd吸附络合物，致使催化剂上异戊二烯选择加氢活性降低。

The reason may be that complex formed by rhodium and halide was difficult to produce the catalytic active species. Therefore halide ion was the poison for the rhodium catalyst in hydroformylation of olefins in ionic liquid. The effect of double long chain cationic surfactant (DCMAB, dicetyl dimethylammonium bromide) on selective hydrogenation of cinnmaldehyde catalyzed with RuCl3·x H2O/TPPTS was studied.

进一步的研究表明在使用有良好反应活性的两种催化剂HRh3 、Rh_2进行催化反应时，向体系中加入含有卤离子的化合物时将使反应活性大大降低，而且随着卤化物加入量的增加，催化剂的活性迅速下降，这是卤离子可能和金属铑作用使它难于生成催化活性物种，进一步证明卤素离子是引起催化剂活性下降的极其重要的因素。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48