narrow fraction是什么意思

网络释义

用法例句

Molecular model for super critical fluid extraction of narrow fraction in vacuum residua;

重质油超临界流体萃取分离窄馏分的分子模型

Measurement on the surface tension of narrow fractions from coal directly liquefaction and correlation with its basic properties;

煤液化油窄馏分表面张力测定及与基本性质的关联

The properties of the narrow fractions and end.

利用超临界流体萃取分馏技术,对伊朗常渣及其加氢尾油进行了分离,测定了窄馏分的密度、折光率、残炭量、平均相对分子质量、元素、金属含量(镍、钒)、族组成(饱和分、芳香分、胶质、沥青质),对两种窄馏分的性质及其随收率的变化规律进行了分析对比,计算了窄馏分的平均沸点。

14 narrow fractions were gained by the true boiling point distillation.

1 t/d煤液化连续试验装置上对神华上湾煤进行煤液化试验,将得出的煤液化油产品经实沸点蒸馏切割成14个窄馏分。

Twelve narrow fractions were obtained by the true boiling point distillation.

参照石油馏分平均分子量的4种计算关联式和日本Gray等人推荐式,得到3种煤液化生成油窄馏分平均分子量的计算值,与平均分子量的测量值进行比较,得出Riazi-Daubert关联式和Gray等人推荐式的计算值和测量值比较接近,<150℃的馏分相对误差比较大,而>150℃的各馏分相对误差都在5%之内。

The property of each narrow range cut was analyzed and the catalytic cracking of each cut wastested.

采用短程分子蒸馏技术,对沙轻减压渣油进行深拔分离,并对各窄馏分进行性质分析,及考察其催化裂化性能。

Thirteen narrow range cuts of every 25℃ in the boiling range of 200-525℃ were obtained by the TBP distillation of Xinjiang crude.

由实沸点蒸馏新疆原油得到２００～５２５℃间每间隔２５℃的１３个窄馏分，采用落入式铜块热量计测定各窄馏分及２２５～２７５℃和４７５～５２５℃两个宽馏分子不同温度下的液体焓值，分别给出焓与温度的关联式。

Molecular structural characterization of the SCFE narrow-cuts of various residua was made by using molecular connectivity index (MCI) method in order to predict their physical properties and chemical reactivity.

通过对多种渣油及其SCFE窄馏分平均分子的分子连接性指数与物理化学特性关系的研究发现 ,分子连接性指数可以较好地表征同一种渣油的SCFE窄馏分的物理化学特性 ,但对不同种渣油的SCFE窄馏分差异巨大 。

STUDY ON ENHANCING PROPYLENE YIELD BY CONVERTING THE NARROW FRACTIONS OF CATALYTIC PYROLYSIS NAPHTHA

窄馏分催化裂解汽油多产丙烯的研究

Study on average molecular weights of the distillated fractions from different coal-derived oils

煤液化生成油窄馏分平均分子量的研究

The aromatic factors of Liaohe decanted oil are much higher than those of Daqing decanted oil at the same cumulative yield.

在相同累积收率时，辽河油浆窄馏分的芳碳率远大于大庆油浆窄馏分。

PRECISION OF NEDOL METHOD FOR CALCULATING COAL LIQUEFACTION OIL NARROW BOILING RANGE FRACTIONS MOLECULAR WEIGHTS

采用NEDOL法计算煤液化油窄馏分样品的准确性

On the Selecting Materials for Producing A Close-cut Fraction and High Standard Solvent Oil

窄馏分低芳烃溶剂油生产原料优选研究

STUDY ON PROPERTY AND CATALYTIC CRACKING PERFORMANCE OF NARROW RANGE CUTS OF SAUDI-ARABIAN VACUUM RESIDUE

沙轻减压渣油深拔窄馏分性质及催化裂化性能的研究

DETERMINATION OF THE VAPOUR-LIQUTD EQUILIBRIUM CONSTANTS OF NARROW FRAC(?)NS OF DAQING,SHENGLI AND HUABEI CRUDE OILS AT HIGH PRESSURE AND VERIFICATION OF MATHEMATICAL MODELS

大庆、胜利和华北原油窄馏分在加压条件下气-液相平衡常数的测试及数学模型的考察

fractional distillation

分馏, 分解蒸馏(法)

effluent fraction

流出的馏分, 选择的馏分

To separate(a distillate)by distillation.

蒸馏出用蒸馏分离（馏出物）

A chemical component separated by fractionation.

分馏被分馏出的化学成分

Measuring distillation range of petroleum fractions by Engler distillation related with gas chromatography simulated distillation technology.

基于色谱模拟蒸馏技术的石油馏分恩氏蒸馏馏程测定方法

middle oil distillate

(煤油与润滑油之间的馏分) 中间馏分

gasoline power fraction

汽油的主馏分, 基本汽油馏分

column, fractionating or distillation ,of non-refracotry ,ceramic

陶瓷分馏或蒸馏塔,非耐火的

fractionation of a liquid by distillation.

通过蒸馏分馏液体的过程。

Fractional distillation of petroleum is carried on in a still.

石油的分馏在蒸馏器内进行。

differential partial condensation

部分冷凝的蒸馏分离