分子筛上发生的主要是汽油烯烃和环烷烃之间的氢转移反应。
The hydrogen transfer reaction on the Y zeolite catalyst mainly takes place between gasoline olefins and naphthenes.
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 content of naphthene, total paraffin, olefin and aromatics in FCC gasoline increased or decreased alternately with the change of space velocity.
集总组分之间主要发生烷烃脱氢环化、环烷烃脱氢芳构化和加氢裂化反应。
That is dehydrogenation and cyclization of paraffins, dehydrogenation and aromatization of naphthenes, and cracking reaction to form C 5 lighter products.
单环芳烃的加氢饱和与环烷烃的选择开环是柴油深度脱芳过程中的重要反应。
The hydrogenation saturation of aromatics and selective ring opening of cycloalkane were the most important process during deep dearomatization of diesel oil.
测定了一批具有大小不同碳环的苯磺酰基环烷烃甲酸酯对发光菌的毒性数据。
Batch data for the toxicity of phenylsulfonyl-cycloalkane carboxylates containing different sizes of carboatomic rings to photoluminescence bacteria have been measured.
石油主要是由烷烃、环烷烃和芳香烃组成的混合物，具有致癌、致畸、致突变的潜在性。
Petroleum is a kind of compound composed of alkane, cyclane and aromatics, which have the potentiality leading to cancer, deformity and mutation.
一种无色、易燃的液体环烷烃，C5H10，从石油中提取并用作溶剂和发动机燃料。
A colorless, flammable, liquid cycloalkane, C5H 10, derived from petroleum and used as a solvent and motor fuel.
随着演化程度加深，链烷烃脱甲基、环烷烃开环作用、芳构化作用和烷基化程度不断提高。
The degree of hydrocarbon evolution increases with depth, which is accompanied by demethylation of alkanes, ring opening of cycloalkanes, aromatization and heightening alkylating degree.
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.
凝析油中不含胶质和沥青质，在轻质组分中（C<10）链状饱和烃含量为57％，环烷烃为35％。
There is no resin and asphaltene in the condensate, but 57% chain alkane and 35% cycloal-kane exist in light fraction ( C<10 ) .
同石油原油相比，F-T合成粗油品主要由链烷烃和链烯烃组成，环烷烃和芳烃含量很少，且具有硫、氮等含量少的优点。
Compared with crude petroleum, F-T synthetic crude oil mainly has paraffin and alkene, containing few cycloparaffin and arene, with extremely low sulfur and nitrogen.
综述了微生物对链烷烃、环烷烃和芳香烃的降解途径、机理和降解动力学，分析了温度、营养物质、氧及盐度等非生物因素对降解作用的影响。
Biodegradation ways, mechanism and kinetics of alkanes, cyclanes and arenes are reviewed, and the influences of temperature, nutrients, oxygen and salinity on biodegradation are analyzed.
综述了微生物对链烷烃、环烷烃和芳香烃的降解途径、机理和降解动力学，分析了温度、营养物质、氧及盐度等非生物因素对降解作用的影响。
Biodegradation ways, mechanism and kinetics of alkanes, cyclanes and arenes are reviewed, and the influences of temperature, nutrients, oxygen and salinity on biodegradation are analyzed.
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