使分馏

After the DHX process was used on the light hydrocarbon unit to recover C3(superscript +) compound, it had a good result that the recovery rate of C2 compound was higher in the same operation conditions. And the liquid ethane could be used as the cryogen and absorbent to increase the recovery rate of C3(superscript +) compound and decrease the energy cost greatly at the same time.

以回收C3为目的轻烃装置采用DHX工艺（DHX塔闪蒸+脱乙烷塔分馏）后，在相同工况下能使C2获得更高冷凝率，并通过液态乙烷的制冷剂和吸收剂作用使C3收率大幅提高，达到节能降耗的同时也提高了C3收率。

This model indicates that the sulfur isotopes, whose values tend to be negative fractionate to a large scale because of the reductive process of dissimilating bacteria of sulfate.

根据内蒙古乌达矿区高硫煤9煤层（有机硫同位素值 d 34 S=－12.3‰~5.8‰，黄铁矿硫同位素值 d 34 S=－18.7‰~1.1‰）和低硫煤13煤层（有机硫同位素值 d 34 S 为8.9‰~ 11.5‰，黄铁矿硫同位素值 d 34 S 为8.3‰~ 9.7‰）剖面上有机硫和黄铁矿硫同位素的组成，结合煤岩学特征的综合分析以及黄铁矿化菌落和蓝藻胶壳的发现，提出了高硫煤中硫的演化模式，认为高硫煤中硫的同位素由于硫酸盐的异化细菌还原作用导致硫同位素大规模分馏，使之趋于负值。

Make incomplete heavy oil or olefin base crude oil comes to those who raise light oil close through deepness treatment method rate, finished product can serve as after classics of the benzine of generation, derv is purificatory, shan of the cent that weigh heat up in a steamer can serve as catalytic cracking or thermal cracking raw material, coke can serve as the raw material of production electrode, have ask rest method and continuous method etc.

使残重油或石蜡基原油通过深度加工方法来提高轻油的收率，产生的汽油、柴油经精制后可作为成品，重馏分汕可作为催化裂化或热裂化原料，焦炭可作为制造电极的原料，有问歇方法和连续方法等。

It\'s possibly that increase of hydraulic limitation with tree height influenced leaf water potential and turgor as well as leaf structure,which strengthened hydraulic limitation on leaf gas exchange characteristics including photosynthesis and transpiration rate, resultantly influenced carbon assimilation and CO_2 fractionation and increased water use efficiency and drought resistance capability.

应该是水力限制影响了叶片的水势和膨压、同时造成叶片的结构发生改变，而结构的改变加剧了水力对气体交换的限制、影响了光合碳同化以及对CO_2的分馏效应、使叶片的水分利用效率和抗旱性增强。

In the past several decades, great achievements have been made by the marine foraminiferal boron isotope researches on the following aspects: analytical techniques, offsets between laboratories, isotopic fractionation factor, long-term changes in seawater boron isotopic compositions and vital effects.

最近，海洋浮游有孔虫硼同位素的研究在实验分析技术、实验室偏差、同位素分馏系数、海水硼同位素长期变化以及各种次要因素等方面都取得了长足的进步，尤其是全蒸发负热电离质谱法的建立使硼同位素分析的样品需求量降到纳克级以下。

Reaction is carried out under a fractionating column that allows aldehyde to pass but returns alcohol to the reaction vessel.

反应是在装有分馏柱的反应器中进行的，分馏柱能让醛通过但使醇回流到反应器中。

Sulfur isotope of franeolite indicate that sulfur isotope value of phos phate concretion is larger than that of evaporite sulfate, there is little doubt that sulfur isotope fraetionation happens during phosphorite diagenesis, heav ier sulfur is laid in sediments because of formation of H〓S.

磷结核的稳定S同位素测试表明：其值大于同时代海水蒸发盐的值，这是由于在成岩作用过程中发生了S同位素分馏，生成H〓S，从而使沉积物中富集〓S。

At present, diesel oil plays a more and more important role in the various kinds of fuel. But compare to gasoline, diesel oil has a high rate of sulfur compound. The sulfur compound is existed mainly as thiphene and thiphene ramification. These kinds of sulfur compounds are not easy to remove by adding hydrogenation. Thats why diesel oil has a high rate of sulfur compound. So it makes profound desulfurization a hot topic and a difficult problem in and outside the country. This paper takes dibenzonthiophene as a model to study the profound desulfurization of diesel oil with the help of biology and the oxygenating desulfurization under the condition of ultrasonic and microwave.

目前，柴油在燃料油中占的比重越来越大，而柴油较汽油馏分重，其硫化物主要以噻吩及噻吩衍生物的形式存在，这类硫化物用加氢的方法难以脱除，使柴油的含硫量较高，因此柴油的深度脱硫是国内外研究的热点和难点，本文以二苯并噻吩作为模型化合物，考察微生物的协同条件下对柴油的深度脱硫，超声波条件和微波条件下的氧化脱硫，并对超声波条件和微波条件下柴油的深度脱硫进行了对比。

The oil yield of six types of Huadian oil shales were measured on a Fischer assay retort,and the factors which effected the results of Fischer assay of oil shale were investigated,such as heating rate,particle size,final retorting temperature and retorting persistent time.

结果表明，页岩油的产率随着挥发分含量的增大而增加，在一定范围内提高升温速率，页岩油产率增大，但升温速率过快，反而使页岩油产率降低；终温在500℃~510℃，持温时间20 min的条件下，产油率最高，继续增加干馏终温和持续时间对产油率影响不大；同时适宜的粒度可以适当提高页岩油的产率。

Catalytic thermal cracking technology, making use of VGO and residue as feedstock and solid acid catalyst which consists of ZSM-5 zeolite as major activity components, is a new process of producing low-carbon olefines composed of ethylene and propylene mainly under certain condition in FCC plant.

催化热裂解技术是以减压馏分油和渣油为原料，使用以ZSM-5分子筛为主要活性组元的固体酸催化剂，在催化裂化装置上，在一定的工艺条件下生产乙烯和丙烯为主的低碳烯烃的一项新工艺。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了