naphthene
英
美
n. （石油）环烷；环烷（属）烃；环烃
双语例句
- 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。 - Transformer oil produced from atmospheric Cut 2 of Kongdian heavy naphthene base crude oil
利用孔店重质环烷基原油常二线生产变压器油 - 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； - 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碱液分离不彻底的问题。 - A new type of oil-soluble imidazole corrosion delay agent has been Synthesized from naphthene acid and organic amine.
以环烷酸、有机胺为原料合成咪唑啉油溶性缓蚀剂。 - 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； - The influence of natural surfactants, such as asphaltenes, resins, solid particles and naphthene, on the stability of the water in crude oil emulsion are summarized.
综述了原油乳状液中天然表面活性物质，如沥青质、胶质、固体颗粒物以及石蜡对原油乳状液稳定性的影响。 - Study on naphthene series extender oils for styrene-butadiene rubber
丁苯橡胶环烷系填充油的研究 - Now technology properties of homemade asphalts with naphthene base crude oil, for example, DONGHAI sign asphalt used in F1 race field, have greatly raised and reached the level of overseas asphalt products with famous trademark.
近几年国产沥青采用环烷基原油生产，其技术性能有了质的飞跃，达到了国际品牌水平，东海牌沥青应用于F1赛场就是最好的证明。 - The content of naphthene, total paraffin, olefin and aromatics in FCC gasoline increased or decreased alternately with the change of space velocity.
环烷烃、总烷烃、烯烃和芳烃的含量随着空速的变化出现相互交叉的现象； - The production of premium naphthene-base lube oil with hydrogen technique
全氢工艺生产优质环烷基润滑油 - To solve the problem of absorbing water, drying gas is used to protect naphthene base transformer oil in storage tank, The vacuum dewatering process from moisture-bearing transformer oil is carried out by vacuum oil filter. The quality of the oil is improved.
针对环烷基变压器油的吸水问题，用干燥的气体对储油罐内的变压器油采取了保护措施，并用真空滤油机对已吸潮的变压器油进行真空脱水处理，提高了变压器油的质量。 - Long-term Operation in Processing Low Freezing Point Naphthene Base Crudes
加工低凝环烷基原油长周期运行经验 - The results showed that the thermal-oxidation stabilities of paraffin and naphthene fractions are basically similar, however, the stability increases with increasing aromatics content and with the aromatics changing from monocyclic to bicyclic and polycyclic in structure.
结果表明，烷烃和环烷烃的热氧化安定性基本相同，但随着馏分中芳烃含量的逐渐增加及结构逐渐由单环向双环、多环的变化，热氧化安定性也在逐渐提高。 - According to the structural group theory, the chemical composition of petroleum fractions can be classified as structural groups as aromatics, naphthene, olefin and non-hydrocarbon elements etc. Among them, aromatics and naphthene can be further divided into some sub-groups depending on their ring distribution.
按照结构基团理论，将石油馏分的化学组成划分为芳烃、环烷烃、烯烃和非烃元素等结构基因，其中芳烃和环烷烃还按照其环分布划分为若干个亚族基因。 - Olefin has a higher cracking rate than alkane and naphthene at the same carbon number.
烯烃的催化裂解速率远远高于同碳数烷烃、环烷烃。