得到了各个馏分的氢、碳原子分布。
在早期的工作中，产物是靠蒸馏分离。
In the early work, separation of the products depended on distillation.
各种溶剂油馏分一般都需要经过精制加工。
Various solvent naphtha fraction generally have to go through refining.
轻石油馏分，如石脑油是合乎逻辑的选择。
Light petroleum distillate, generally known AS naphtha, wAS the logical choice.
这些早期的观察曾为化学馏分的结果所增补。
These early observations have been supplemented with results from chemical fractionation.
靠冷冻和压榨从石蜡基馏分油中提取出的蜡。
The wax removed from paraffin distillates by chilling and pressing.
它按沸点的几个温度范围分成少数几种馏分。
It is separated into a few fractions which boil over different ranges of temperature.
主要由戊烷和己烷组成的一种挥发性石油馏分。
A volatile fraction of petroleum consisting chiefly of pentanes and hexanes.
反应产物经精馏分离后得到的产品纯度在99.8%以上。
The purity of the product after rectifying process could reach to 99.8%.
在分馏中被送回塔内促进更好分离成所需馏分的那部分馏分油。
In fractional distillation, that part of the distillate which may be returned to the column to assist in making a better separation into desired fractions.
以常二线馏分油为原料油，研究了加氢精制生产研磨油的工艺。
The process of two-stage hydrogen refining for the preparation of grinding oil was studied.
在真沸点蒸馏过程中，对规定温度范围内所收集的馏分可加以回收。
During the course of the TBP distillation, the distillates which accumulate between specified temperatures are withdrawn.
采用演化算法求解具有组合爆炸特征的精馏分离序列优化综合问题。
Evolutionary algorithm is applied to solve distillation separation sequence optimization synthesis problems that are characteristic of combination explosion.
煤焦油各馏分加工技术的选择，对煤焦油加工厂的整体水平有很大影响。
The selection of process technology of coal tar fraction have an effect on general level of coal tar plant.
预测中还提到，馏分油库存增加600 000桶，汽油供应减少900 000桶。
A 600, 000-barrel increase in distillate stockpiles and a 900, 000-barrel decline in gasoline supplies were also forecast.
色谱法与其他分离方法联合使用，能够有效地分离重质馏分油中的硫化物。
The sulfur compounds in heavy distillate oil can be separated effectively by the joint use of chromatography and other separation methods.
用此方法可以计算汽油的辛烷值、柴油的十六烷值、馏分油中芳烃和硫含量。
Through it, octane value of gasoline, cetane value of diesel oil, aromatics and sulphur contents in fraction oil can be calculated.
在空气分离工厂，通过空气液化和蒸馏分离出氮。接着氮作为低温液体回收。
Nitrogen is produced at air separation plants by liquefaction of atmospheric air and separation of the nitrogen by distillation. The nitrogen is then recovered as a cryogenic liquid.
石蜡馏分由贯穿整个压滤机长度的窄孔进入，被强迫进入由铁圈形成的板间空间。
The distillate is run into a narrow bore extending the entire length of the press, and is forced up into the Spaces between the plates formed by the rings.
石油炼制即将石油分离成各种馏分，然后将这些馏分经过处理，制成各种石油产品。
Petroleum refining is the separation of petroleum into fractions and the subsequent treating of these fractions to make them into petroleum products.
在空气分离工厂、或者通过空气液化和蒸馏分离出氮，或者通过吸附过程生产氮。
Nitrogen is produced at air separation plants either by liquefaction of atmospheric air and separation of the nitrogen by distillation or by adsorption processes.
石油产品。中间馏分产品中芳香烃类的测定。用折射指数检测的高性能液相色谱法。
Petroleum products - Determination of aromatic hydrocarbon types in middle distillates - High performance liquid chromatography method with refractive index detection.
氩的生产使用空气分离装置(asu)，通过大气的液化和连续低温蒸馏分离出氩。
Argon is produced by an air separation unit (ASU) through the liquefaction of atmospheric air and separation of the argon by continuous cryogenic distillation.
该工艺可脱出丙烷馏分油中的绿油组分，从而提高了丙烷馏分油的使用效果和价值。
Green oil components in the propane distillate oil can be removed, thus improving the effect and value in use of the propane distillate oil.
该工艺可脱出丙烷馏分油中的绿油组分，从而提高了丙烷馏分油的使用效果和价值。
Green oil components in the propane distillate oil can be removed, thus improving the effect and value in use of the propane distillate oil.
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