kongdian crude oil from dagang oil field is typical heavy naphthene base crude oil with the properties of high viscosity, low solidifying point and sulfur content.
大港油田孔店原油是典型的低硫重质环烷基原油,具有高粘度、凝固点低、含硫低的特点。
paraffin consists of n-alkane, short p-alkane, naphthene and aromatic, minimal amount of compounds containing elements s, n, o.
石蜡主要是由正构烷烃组成,还有较少的异构烷烃、环烷烃和芳烃,以及含微量s、n、o的化合物。
standard test method for oxygenates and paraffin , olefin , naphthene , aromatic o - pona hydrocarbon types in low - olefin spark ignition engine fuels by gas chromatography.
用气相色谱对低烯烃火花点火引擎燃料芳香碳氢化合物类型,环烃,烯烃,石蜡和氧化物的标準试验方法。
through practical operation, the authors introduced that adopting swirl separation technology can solve the problem that naphthene oxidation device' waste lye can not be separated completely.
文章主要介绍通过实际操作,有效地应用旋流分离技术解决环己烷氧化装置废堿液分离不彻底的问题。
in conversion comparison method, the leak is found by looking at the naphthene conversion.
转化率比较法是根据特定环烷烃的转化率来判断;
for hydrocarbons with, similar relative molecular weight, the kl values of paraffin, naphthene and aromatics decrease in order.
对于相对分子质量近似的烃,烷烃kl值>环烷烃kl值>芳烃kl值;
it is formulated a rust - proof oil to low noise bearings with naphthene base oil which has good rust - proof property.
用环烷基油调配了一种防锈性能良好的低噪音轴承防锈油。
the petroleum carboxylic acids(mainly naphthene acids)in the diesel oil of liaohe oil isolated by the extraction with solution of a1coholic sodium hydroxide, and the efficiency is not lower than 90%;