流动改进剂的作用与正构烷烃含量有最佳匹配点。
The function of diesel flow improver and content of n paraffin have the best matching point.
结果表明，随着碳数的增加，各正构烷烃穿透床层的时间增加。
The results indicated that the adsorption breakthrough times of various n-paraffins increased with the increase of n-paraffins' carbon number.
同时也证明了生排烃过程不影响正构烷烃单体碳同位素组成曲线的形状；
The distribution pattern of the carbon isotopic compositions of the individual n-alkanes shows almost no change during this process.
这些不同类型的正构烷烃提供了丰富的成矿信息，具有成矿作用的示踪意义。
These normal alkanes offer the favourable mineralization information and have the tracer significance for the gold mineralization.
采用高温气相色谱法测定橡胶防护蜡中的正构烷烃和非正构烷烃的碳数及含量。
Carbon distribution and content of normal alkane and isoalkane in rubber waxes are measured by using high temperature gas chromatography.
为了优化乙烯裂解原料并合理利用石脑油资源，将石脑油中的正构烷烃进行分离。
The technology of separating normal paraffins from the naphtha through the adsorption process was studied to optimize the steam cracking feedstock and utilize the naphtha resource properly.
考察了柴油对流动改进剂的感受性与柴油正构烷烃含量、正构烷烃分布等因素的关系。
The relationship between the sensitivity of diesel to flow improver and some factors such as n paraffin content and distribution of n paraffin in diesel is studied.
详细介绍了带齿形堰的筛孔溢流盘式分布器在正构烷烃分离装置改造中的设计与应用情况。
The paper introduces the design and application of perforated weir-riser distributor with toothed weir, which is used in the modification of n-paraffin separation unit.
此类柴油流动改进剂的酯基侧链碳数分布和柴油的正构烷烃分布是影响其效果的主要因素。
It is indicated that the performance of the flow improver is influenced by the carbon distribution of the alkyl ester and then paraffin distribution of the diesel.
通过气相色谱分析，发现原油中烷烃组分发生变化，正构烷烃碳数分布曲线向轻组份方向移动。
The GC-MS analysis also shows a declination of heavy normal alkane in the degraded oil.
本文利用高压dsc对各种燃料烃(正构烷烃、环烷烃、烷基芳烃和双环烃)的安定性进行了研究。
In this paper, the experimental investigation on the stability of various fuel hydrocarbons was carried out by high pressure DSC.
正构烷烃产业链，努力形成聚酯、聚酰胺、塑料、合成橡胶、精细化工等生产和深加工五大产业集群。
It is also dedicated to the development of five industrial clusters of production and deep-processing of polyester, polyamide, plastic, synthetic rubber and fine chemicals.
轻质正构烷烃异构化是油田液态烃加工利用的重要手段，也是炼厂提高汽油轻质馏分辛烷值的重要方法。
Light paraffin isomerization is an important method for processing and utilizing of natural gas liquid, it plays an important role in improving the octane number of light gasoline fractions.
XRD结果显示，蜡晶结构与蜡晶中含量高的高碳数正构烷烃二十三烷结构类似，加剂后平均晶粒变小。
After adding the improver, the structure of wax is similar ton-tricosane and the average size of wax particles becomes smaller while the long-range order of wax increases based on XRD spectrum.
口井30 余块样品测试结果表明，煤系有机质丰度及可抽提有机质的量都较高；正构烷烃具明显奇偶优势；
The test results of 30 samples collected in 4 wells indicate that the abundance and extractable contents of organic matter in the coal measures are both high, n alkane possesses odd even predominance;
采用吸附分离工艺，以5A分子筛为吸附剂，氮气为脱附剂，将重整拔头油分离成高纯度的正构烷烃和异构烷烃。
Adsorption and separation technology were studied with reforming topped oil as feedstock, 5 a molecular sieve as adsorbent, nitrogen as desorbent.
实验研究了工业品原油降凝剂WHP改善含蜡56.9%、其中96.6%为正构烷烃的胜利郑王庄稠油流动性的效果。
The flowability improvement by using commercial pour point depressant WHP is studied for Zhengwangzhuang viscous crude oil of Shengli, containing 56.9% wax, of which 96.6% is noraml paraffins.
GC定量分析正构烷烃的结果和HPLC定量分析多环芳烃的结果均显示，天坛站点的有机物污染浓度大于十三陵站点。
Both quantitative GC data of alkanes and HPLC data of PAHs indicated that organic pollution level was higher in Temple of Heaven site than that in Ming Tomb site.
第一章重点阐释了正构烷烃的研究意义、影响颗粒态、溶解态正构烷烃含量的主要因素、国内研究现状和本文的研究意义。
Chapter 1 introduced the importance of n-alkanes in organic geochemical study and the proposed main factors that affected the concentration of particulate or dissolved n-alkanes.
对车用液化石油气气路系统中堵塞物的研究结果表明，蒸发器上的残留物主要是酯类、醚类、正构烷烃、单质硫和硫化铜粉末。
The formation of residues in the auto-LPG fuel system is one of the main obstacles in the application of LPG as vehicular fuel.
结果表明：C _(26)和C_(30)正构烷烃的降解速度模式相似，证实了正构烷烃随着碳原子数的增多，降解速度减慢。
It has been found that the biodegradation mode of C_ (26) was similar with that of C_ (30), and the biodegradation process would slow down along with the increasing number of carbon atoms in alkanes.
拟组分的热力学参数采用经验关系式来计算，其中对于正构烷烃的固-固转换焓、固固转换温度、熔解焓以及溶解温度，基于文献资料建立了新的关系式。
New correlations for solid-solid transition enthalpy, solid-solid transition temperature, fusion enthalpy and fusion temperature are also established in this work based on the data from literatures.
拟组分的热力学参数采用经验关系式来计算，其中对于正构烷烃的固-固转换焓、固固转换温度、熔解焓以及溶解温度，基于文献资料建立了新的关系式。
New correlations for solid-solid transition enthalpy, solid-solid transition temperature, fusion enthalpy and fusion temperature are also established in this work based on the data from literatures.
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