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轻油
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  light oil
    ANALYSIS OF DAQING LIGHT OIL BY GC AND GC/MS
    大庆原稳轻油的GC及GC/MS分析
短句来源
    This paper studies mainly the modification of light oil steam reforming Ni/α-Al2O3 catalysts by rare earth oxide La2O3. The variation of Ni crystal size with the La content was found with the XRD method to obtain the optimum La content.
    用稀土氧化物(La_2O_3)对轻油水蒸汽转化制氢催化剂(Ni/α-Al_2O_3)进行了改性。 用X射线宽化(XRD)法测定催化剂中镍晶粒大小随La合量的变化,确定出改性剂的最佳La含量。
短句来源
    When the dosage of the additive I in feedstock is 40 μg/g,the acidity of catalyst,the yield of light oil and the total yield of the liquid increase by 3 units,1.36 and 2.34 percent points,respectively.
    当助剂Ⅰ用量为 40 μg/g时 ,酸性提高 3个单位 ,轻油收率提高 1.3 6个百分点 ,总液体收率提高 2 .3 4个百分点。
短句来源
    The yield of light oil and the total yield of the liquid increase by 1.90 and 2.50 percent points respectively with the mitigative additive II.
    当使用酸性助剂Ⅱ时 ,轻油收率、总液体收率分别提高 1.90和 2 .5 0个百分点
短句来源
    Study on Copolymerization of Light Oil from Pine Roots-Phenol-Fonnaldehyde
    松根轻油—苯酚—甲醛共聚合的研究
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    Extraction ICP AES Determination of Trace Elements in Light Oils
    ICP-AES法测定轻油中微量金属元素
短句来源
    Study on the used rimary reforming catalysts of light-mass oil
    用后轻油一段转化催化剂剖析研究
短句来源
    The kinetic features of the gasification with H2O-H2 mixture of carbon deposited on the nickel catalysts for steam reforming of naphtha are reported in the temperature range 723-973K.
    本文用动态热重法,对轻油转化制氢镍催化剂上H_2O-H_2混合消碳的动力学进行了研究:揭示了H_2O消碳对镍的氧化现象;
短句来源
    THE POISONING EFFECT OF PYRIDINE AND THE "NITROGEN COMFOUNDS" SEPARATED FROM DIESEL FRACTION OF SHALE OIL ON THE CATALYTIC ACTIVITY OF MoS_2
    吡啶及页岩油轻油“含氮化合物”对MoS_a催化剂活性的影响
短句来源
    KINETICS STUDY OF ELIMINATION OF CARBONACEOUS DEPOSITS ON NICKEL CATALYSTS WITH STEAM-HYDROGEN
    轻油制氢镍催化剂上的消碳动力学——水-氢消碳与水消碳的对比
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  light oil
Flow-injection photometric determination of mercaptans in light oil products with chromatomembrane extraction
      
A procedure was developed for the flow-injection photometric determination of mercaptans in light oil products.
      
Modeling of Liquid-Vapor Equilibrium in Systems Including a Light Oil-Gas Component and Aromatic and Polyaromatic Hydrocarbons
      
During this process, the oil is partially transformed into hydrocarbons, light oil, semiliquid and solid bitumens.
      
The micropacked columns were successfully applied to the separation of components of a light oil and a kerosine.
      
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Using pure benzene as raw material for the evaluation of catalytic activity of MoS_2, the study of the poisoning effect of pyridine and the "nitrogen compounds" separated from diesel fraction of Shale oil on MoS_2 catalyst was carried out. The experiments show that when the MoS_2 catalyst is previously treated by pyridine or "nitrogen compounds" under high pressure at lower temperature(300℃), it loses its activity for the hydrogenation of benzene ring; while at higher temperature (420℃), in such case that the...

Using pure benzene as raw material for the evaluation of catalytic activity of MoS_2, the study of the poisoning effect of pyridine and the "nitrogen compounds" separated from diesel fraction of Shale oil on MoS_2 catalyst was carried out. The experiments show that when the MoS_2 catalyst is previously treated by pyridine or "nitrogen compounds" under high pressure at lower temperature(300℃), it loses its activity for the hydrogenation of benzene ring; while at higher temperature (420℃), in such case that the nitrogen compounds can be completely hydrogenalyzed, therefore, the hydrogenating activity of MoS_2 catalyst remains unchanged after nitrogen compounds treatment, however, its isomerization and cracking activities are somewhat poisoned. Among these the isomerization activity is more sensitive towards: nitrogen compounds. The results also show that the pgisoning effect of pyridine is analogohs to that of the "nitrogen compounds" of diesel fraction of shale oil.

以苯作为評价MoS_2催化剂活性的原料,試驗了吡啶及頁岩油輕油“含氮化合物”对催化剂活性的影响。試驗証明在較低的溫度下(300°)經吡啶或“含氮化合物”的加氫处理后,催化剂完全失去了对苯加氫的活性;但在較高溫度下(420°以上),由于保証了含氮化合物的加氫裂解,催化剂仍保有相当的活性,其中除氫化性能几乎不受影响以外,影响最大的为异构性能,次之才为环烷的裂化性能。吡啶与含氮化合物的“毒性”,在性能上極其相近。

The kinetics study of elimination of carbonaceous deposits on steam reforming nickel catalysts with steam-hydrogen has been made in a dynamic ther-mogravimet ric reactor system. It has been shown that the oxidizing effect of steam on nickel catalysts can be inhibited by using steam-hydrogen mixture. Steady state rate of elimination versus the initial amount of carbon deposited Wc was determined.For Wc<10mg/100mg cat.,they are in linear proportion; for 10mg

The kinetics study of elimination of carbonaceous deposits on steam reforming nickel catalysts with steam-hydrogen has been made in a dynamic ther-mogravimet ric reactor system. It has been shown that the oxidizing effect of steam on nickel catalysts can be inhibited by using steam-hydrogen mixture. Steady state rate of elimination versus the initial amount of carbon deposited Wc was determined.For Wc<10mg/100mg cat.,they are in linear proportion; for 10mg

本文用动态热重装置对轻油转化制氢镍催化剂上水-氢混合消碳的动力学做了研究,得到了消碳的动力学经验方程,并与用水消碳的动力学做了比较,证明了水-氢混合消碳,除可以抑制水对催化剂的氧化、促进催化消碳外,还可以在一定温区内,通过用适当范围的水-氢比,使水-氢混合消碳的速度大于单用水消碳的速度。

We investigated steam-reforming catalysts which had been run in a chemical plant for about two years.Samples were taken from different heights along catalyst-bed.Catalytic activity, bulk-phase composition, nickel crystallite size, specific surface area, pore structure and surface configuration of these samples were determined. It has been found that there is a certain relationship existed between the structure of the catalysts and their catalytic behaviour. The position down below about 3 m from the entrance...

We investigated steam-reforming catalysts which had been run in a chemical plant for about two years.Samples were taken from different heights along catalyst-bed.Catalytic activity, bulk-phase composition, nickel crystallite size, specific surface area, pore structure and surface configuration of these samples were determined. It has been found that there is a certain relationship existed between the structure of the catalysts and their catalytic behaviour. The position down below about 3 m from the entrance is probably the point of drastic change in structure of the catalysts and is at the same time very sensitive to deposition of coke, which is then becoming the principal cause of catalyst deactivation at that position. While at the position down below about 9-10 m from top, it has been observed that Ni en the surface of catalysts shows a rather high tendency of migration and agglomerates into thin uncontinuous layers, which make catalysts deactivated.

我们对工业上使用过的轻油制氢催化剂进行了研究。分别将不同床层高度的催化剂进行了活性、物相、Ni晶粒大小、比表面、孔结构和表面状态的研究。得到了催化剂结构及其性能沿催化剂床层的某些变化规律。发现离床层入口三米处是催化剂结构变化的转折点,同时发现该处催化剂的失活原因是碳的沉积。在9—10米处催化剂中的镍在表面上有明显迁移聚集形成不连续薄片的现象,这是该处催化剂失活的主要原因。

 
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