正庚烷用途越来越广泛，但制取较为困难。
The use of straight chain heptanes is more and more extensive, but it is more difficult to manufacture.
以正庚烷裂化反应为探针反应考察了样品的活性。
Then-heptane cracking reaction was selected as probe reaction to investigate the activity of studied samples.
减压渣油和正庚烷沥青质的VPO平均相对分子质量都减小了。
The VPO average molecular weight of vacuum residues and asphaltenes all decreased.
并通过分子模拟方法模拟了噻吩和正庚烷在PEG膜中的扩散系数。
Molecular simulation is used to calculate the diffusion coefficient of thiophene and n-heptane in PEG membrane.
用气体流动量热计测定并关联了苯-正庚烷二元体系的等压积分汽化焓；
The isobaric integral heats of vaporization of benzene-n-heptane binary system were determined and correlated with a vapor-flow calorimeter.
如果您的倍增器可以清洗，则必须用非极性的溶剂。(正庚烷是非极性溶剂)。
If your multiplier can be cleaned, then non-polar solvents must be used. (Heptane is a non-polar solvent).
本发明提供的是一种超声萃取蒸馏分离苯―环己烷及苯―正庚烷物系的方法。
The invention provides a method in separating benzene from cyclohexane and from heptane by ultrasonic extractive distillation, comprising steps as ultrasonic processing and extractive distillation.
结果表明，渣油质量分数电导率的最大值可以看作是用正庚烷稀释时沥青质聚沉的发生点。
The maximum value of the calculated mass fraction normalized conductivity of ME-AR was found to be the mark of the occurrence of asphaltene precipitation.
结果表明，空气氧化和氮气热缩聚可提高石油沥青的软化点、焦产率和正庚烷不溶物含量。
The results showed that both methods of air blowing and thermal polycondensation in the presence of nitrogen raised the asphalt softening points, and increased coke yields and heptane insolubles.
正庚烷中加入少量噻吩配制成模拟油品，将模拟油品和汽油分别配制成两种乳状液进行脱硫实验。
Gasoline and a simulated oil which consists of heptane and thiophene were used respectively in the desulfurization experiments.
测定了中东常压渣油加入正庚烷后的电导率，并计算得到了不同正庚烷加入量时的质量分数电导率值。
The electrical conductivity of Middle East Atmospheric Residue (ME-AR) diluted by n-heptane was continuously measured, and the mass fraction normalized conductivity of ME-AR was calculated.
结果发现，高辛烷值燃料异辛烷和高十六烷值燃料正庚烷的混合能够有效控制HCCI燃烧相位和燃烧程度。
The simulation suggested that the mixing with high-cetane fuel and high-octane fuel can influence the combustion phase and cylinder pressure in HCCI combustion.
结果表明，当体系的水相为纯水或盐溶液时， 正庚烷作为油相、 正丁醇作为助表面活性剂使体系有最佳的增溶效果。
The results show that no matter the water phase was pure water or salt water, the microemulsion system exhibits best performance when the oil phase is heptane and the cosurfactant is …
对石油化学实验中所使用正庚烷溶剂的回收方法进行了对比，实验表明，采用氧化铝作为吸附剂效果良好，方法简便易行。
By contrasting with many retrieving methods of normal heptane in petroleum chemistry experiment this paper showed that alumina is a good sorbent, both simple and convenience.
基于甲醇、异辛烷和正庚烷的详细化学动力学机理，对甲醇、异辛烷、正庚烷及其构成的混合燃料的滞燃期进行了计算研究。
The ignition delay periods of methanol, isooctane, n-heptane and their blended fuel were studied based on their detailed chemical kinetic mechanism.
两种基准参考燃料正庚烷和异辛烷分别被定义成辛烷值为0和辛烷值为100，将它们混合产生与实验样本相等敲缸强度的爆震。
Two primary standard reference fuels, normal heptane and iso-octane arbitrarily assigned 0 and 100 octane number, respectively, are then blended to produce the same knock intensity as the test sample.
对正庚烷异构化的热力学、动力学、催化剂及反应的主要影响因素进行了分析，提出了结合反应器技术来研究正庚烷异构化的方法。
On the topic, some papers have been published in recent years. Here a brief introduction about the thermodynamics, kinetics, and catalysts of n heptane h…
这样，依照实验方法，如果匹配的参考混合物由15%的正庚烷和85%异辛烷组成，那么按照所用的实验方法，对比实验样本的辛烷值就是85 。
Thus, if the matching reference blend is made up of 15% nheptane and 85% isooctane, the test sample is rated 85 motor or research octane number, according to the test method used.
以正戊烷、正己烷和正庚烷为分离物系，在简捷计算结果的基础上，利用商业模拟软件HYSYS研究了进料热状态、进料组成和相对挥发度等进料性质对立式隔板塔操作的影响。
The separation of n-pentane, n-hexane and n-heptane mixture with the dividing wall column(DWC) was simulated with commercial software HYSYS, and the optimized operation region was obtained.
以正戊烷、正己烷和正庚烷为分离物系，在简捷计算结果的基础上，利用商业模拟软件HYSYS研究了进料热状态、进料组成和相对挥发度等进料性质对立式隔板塔操作的影响。
The separation of n-pentane, n-hexane and n-heptane mixture with the dividing wall column(DWC) was simulated with commercial software HYSYS, and the optimized operation region was obtained.
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