查询词典 oxygenates

Ischer-Tropsch synthesis is a process for theproduction of various hydrocarbons and oxygenates fromhydrogenation of CO over transition metal catalysts.

T合成产物按碳数的分布规律可由Anderson-Shulz-Flory公式很好地描述，虽然对某些轻组分产物有较明显的偏离。

The spectra of reaction of CO+H_2 with Ru-Co/SiO_2catalysts showed a band appearing at 1584cm~(-1),which has a good relationship to theactivity and selectivity for oxygenates in CO hydrogenation.

在前面的研究中，肖一丰收等人报导了担载的Ru一Co双金属原子簇催化剂在CO+H：反应中对含氧化合物的生成显示了很高的活性和选择性

Correlating the FT-IR results with the CO hydrogenation performance suggested that the linear CO might be mainly responsible for the formation of C2 oxygenates.

结合催化剂对CO加氢的催化性能，可以认为线式吸附的CO对生成q含氧化物有贡献。

Ethanol anhydrous and dimethyl carbonate have good performance as oxygenate to gasoline. Therefore, in order to choose the new generation of oxygenate and spread their future application on gasoline engine, it is very valuable to scientifically evaluate the effects of these three kinds of oxygenates on gasoline engine.

乙醇（Ethanol Anhydrous，EA）和碳酸二甲酯（Dimethyl Carbonate，DMC）是性能优良的含氧燃料，在汽油机上开展这几种增氧剂的研究和评价，对于今后推广使用新一代增氧剂具有重要意义。

On the basis of consideration of various factors whichinfluence the process benefit such as the catalytic activity, the selectivity toward C2 oxygenates, Rh efficiency, and the operation cost, the favorable reaction temperature should be in the rangeof 583-593 K, and the optimized Rh loading be 1 ~2 wt.%.

综合考虑催化剂的活性、选择性、催化剂的Rh效率、工业消耗以及对设备的要求，认为，反应温度为583～593 K，催化剂Rh担载量为1～2wt。

When there were two kinds of active sites with different properties, isobutene were formed on one kind of active site, and then, spilled over to the other active sites, reacting to MAL, isobutene forming as the final product was restrained, and the oxygenates yield was increased.

当催化剂表面存在相邻的两种化学性质不同活性位时，异丁烷在一种活性位上生成异丁烯后，异丁烯可能在催化剂表面迁移到另一种活性位上，继续反应生成甲基丙烯醛或甲基丙烯酸，这抑制了异丁烯作为产物从反应器中流出，并提高含氧有机物收率。

Compared with the precipitated Mnpromoted catalyst, the addition of partial precipitated and binder Mn can enhance the selectivity of heavy hydrocarbons and olefins and restrain the formation of oxygenates.

与共沉淀Mn相比，部分共沉淀和黏结剂Mn提高了重质烃和烯烃的选择性，同时抑制了有机含氧化合物的生成。

After the cold plasma has supplied the necessary energy for the dissociation of CH4 and CO2, syngas, higher hydrocarbons and oxygenates can be easily produced.

等离子体可以提供足够能量以分解反应物，一旦反应物被解离，合成气、含氧化合物及高碳烃都很容易形成。

The results of CO hydrogenation showed that the existence of CNTs enhanced the activity of the Rh-Ce-Mn/Si02 catalyst. Under the specific reaction conditions, the CO conversion was 11.86% and the yield of oxygenates was 336.2g/ when the CNTs content was 10%.

CNTs促进的铑基催化剂的CO加氢活性明显提高，当CNTs添加量为10%时，一定条件下催化剂上含氧化合物的时空收率可达336.29/。

Historically, oxygenates like MTBE were developed in the 1970s as octane enhancers to replace toxic additives like lead, which were phased out of gasoline.

从历史上看，甲基叔丁基醚含氧化合物一样制定了在20世纪70年代的辛烷值促进剂，以取代有毒添加剂，如铅，这是逐步淘汰汽油。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。