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汽油
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  gasoline
    Study of Miscibility of Lower Alcohols with Gasoline
    低碳燃料醇与汽油掺合性的研究
短句来源
    Synthesis gasoline process from CO+H_2 in high-speed fixed bed
    高速固定床CO+H_2合成汽油
短句来源
    Mathematical Models for the First Stage Hydrogenation Reaction of Cracked Gasoline
    裂解汽油加氢—段绝热反应器的数学模型
短句来源
    DEVELOPMENT OF TWO-STAGE MODIFIED FT(MFT) GASOLINE SYNTHESIS PROCESS FROM SYNGAS
    CO+H_2两段法合成汽油(MFT)过程开发
短句来源
    STUDY ON KINETICS OF METHANOL TO GASOLINE REACTION
    甲醇制汽油反应及动力学研究
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  petrol
    Formula Design of Catalysts Matching Petrol Vehicles
    匹配汽油车的催化剂配方设计
短句来源
    Marketing analysis on generalization embarrassment of auto ethanol petrol
    乙醇汽油推广困难的营销分析
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    Under the optimum process conditions the convention of CH_3OH exceeds 95%, the yield of C_3H_6 is 42.48% and the petrol is a bit.
    在此工艺条件下,甲醇转化率95%以上,丙烯含量42.48%,并副产少量汽油
短句来源
    Crude phenanthrene with a purity of 60.34% was dissolved in 90# petrol and refluxed for 1 hour at 80℃, then the hot solution filtered, the filtrate was cooled to room temperature, and filtered again to get the primary product.
    将60.34%菲溶于在90号汽油中,80℃回流1小时,趁热过滤,将滤液冷却至室温再过滤,得到一次产物;
短句来源
    The Introductory Analysis of the Petrol Fractionating Column Transform in the Ethylene Plant
    乙烯装置汽油分馏塔改造浅析
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  gasolene
    Hot-melt adhesives based on copolyamides for textiles which have the characteristics of low-melting,large,adhesive bond strength and excellent resistance to washing and dry-cleaning(trichloroethylene or gasolene).
    由共聚酰胺组成的织物用热熔胶粘剂具有低熔点,粘结强度大,耐水洗性能优良和耐干洗(三氯乙烯,汽油)性能显著等特点。
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  “汽油”译为未确定词的双语例句
    Design and industrial application of DOCP(jl)catalyst for PHV upgrading
    提高汽油辛烷值催化剂DOCP(jl)配方设计及工业应用
短句来源
    Carbonylation of C_6~C_8 olfins from waxcracking to C_7~C_9 mixed fatty acid esters
    石油裂解汽油烯羰化酯化制C_7~C_9混合脂肪酸酯
短句来源
    Development and application of LGO series olefin-reducing RFCC catalyst
    LGO系列降低汽油烯烃含量催化剂的开发与应用
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    Last, the future of ecosystem of wheat fuel ethanol is forecast by the forecasting model of gas price ARIMA (2,1,2) .
    最后通过构建汽油价格ARIMA(2,1,2)预测模型,对小麦燃料乙醇生态系统的未来经济性进行了预测。
短句来源
    In order to make H_2O spread around oil, the H_2O/oil system was surged by ultrasonic.
    通过H_2O/油在超声波中的振荡,使H_2O均匀的分散在汽油中并充分与B反应;
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  gasoline
Study on reformulation of fluid catalytic cracking gasoline and increasing production of light olefins
      
The experimental results showed that FCC gasoline was obviously reformulated under appropriate reaction conditions.
      
The olefins (olefins with C atom number above 4) content of FCC gasoline was markedly reduced, and the aromatics content and octane number were increased.
      
The upgraded gasoline met the new standard of gasoline, and meanwhile, higher yields of light olefins were obtained.
      
Furthermore, higher reaction temperature, higher mass ratio of catalyst to oil, higher mass ratio of water to oil, and lower space velocity were found to be beneficial to FCC gasoline reformulation and light olefins production.
      
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  petrol
Modern state of the catalytic reforming of petrol fractions.
      
Diagnostic ratios indicated combustion of wood and coal, emissions from petrol and diesel engines, and dust resuspension as sources that predominantly contributed to the atmospheric PAH concentrations.
      
Characterization of on-road CO, HC and NO emissions for petrol vehicle fleet in China city
      
The alkene-rich petrol fraction from refinery fluid catalytic cracking (FCC) has been characterized by GC and GC-MS.
      
The proposed coating was applied for aromatic hydrocarbons determination in petrol station waste waters.
      
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  gasolene
Three cases are reported, one of agranulocytosis with monocytosis and two of acute leukaemia of which the first was caused by radioactive iodine and the second by gasolene.
      
Calibration and testing of gas analyzers for detecting gasolene vapor in air
      


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利用水煤气合成汽油中的七碳烷、烯烃馏份(90—100°实沸沸程)为原料,在装有50毫升的氧化铬/氧化铝催化剂的固定床内进行催化芳烃化反应,发现在所考察的试验范围内,芳烃生成率ω,进料的总转化率 y 及气体的生成率 z 与空间流速 V 的关系均可分别用著名的方程式来关连.本文提供了这些关连式的内容.同时,发现积聚在催化剂表面的焦的生成速度可以采用 Villers-Fisher 所提出的论据来关连.本文也提供了该关连式的内容.根据试验的初步结果,我们有理由相信七碳烷、烯烃在催化芳煤化时生成焦的途径,可能是和 Voorhies 曾经考察过的催化裂化时生成焦的途径及 Watson 等所曾经考察过的环己烷催化脱氢时的焦生成途径相同.

A modified method is described for the analysis of straight run gasoline and Fisher-Tropsch gasoline with the aid of calibration curves.This method can be satis- factorily applied to samples with aromatics or olefin content below 15% by volume. Carrier displacement technique is recommended for the separation of saturated hydrocarbon and aromatics at low temperatures using normal pentene as carrier. This method is more efficient than the conventional pentane elution technique. A method for the analysis of ordinary...

A modified method is described for the analysis of straight run gasoline and Fisher-Tropsch gasoline with the aid of calibration curves.This method can be satis- factorily applied to samples with aromatics or olefin content below 15% by volume. Carrier displacement technique is recommended for the separation of saturated hydrocarbon and aromatics at low temperatures using normal pentene as carrier. This method is more efficient than the conventional pentane elution technique. A method for the analysis of ordinary cracked gasoline is also suggested.

本文介绍用新的校正曲线进行烷-芳烃二元系(直馏汽油)和烷-烯二元系(费托合成汽油)的分析.误差分别为0.2%与0.5%(体积).用戊烯为夹带剂可以有效地将烷-芳烃混合物分离.试验应在较低温度下进行以避免烯的聚合.根据所提出的经验公式,可以进行与一般低芳烃含量的裂化汽油组成相近的烷、烯、芳烃三元系的分析.误差在1%以下.

Hydrocarbons in the gasoline fraction boiling below 150℃ of Karamai crude oil are individually identified by a combined method employing fractional distillation, adsorption chromatography, catalytical dehydrogenation and Raman spectroscopy. 93% (wt.) of the total hydrocarbons in the gasoline fraction have been determined quantitatively and 74 hydrocarbons have been identified. The main constituents thus identified are: m-xylene (1.8%, by wt. based on the gasoline fraction), toluene (1.3%), n-pentane (5.6%),...

Hydrocarbons in the gasoline fraction boiling below 150℃ of Karamai crude oil are individually identified by a combined method employing fractional distillation, adsorption chromatography, catalytical dehydrogenation and Raman spectroscopy. 93% (wt.) of the total hydrocarbons in the gasoline fraction have been determined quantitatively and 74 hydrocarbons have been identified. The main constituents thus identified are: m-xylene (1.8%, by wt. based on the gasoline fraction), toluene (1.3%), n-pentane (5.6%), n-heptane (5.5%), n-octane (5.2%), 2-methylheptane (6.0%), 2-methylpentane (4.9%), 2,6-dimethylheptane (4.4%), 1,1,3-trimethylcyclohexane (7.4%), methylcyclohexane (5.2%) and methylcyclopentane (1.4%). The percentages by weight of aromatics, n-paraffins, isoparaffins, cyclohexanes and cyclopentanes in the gasoline fraction are 4.6, 23.4, 34.0, 24.0 and 7.0 respectively. The results of this combined analytical method may be satisfactorily duplicated.

用分析直餾汽油單體烴的綜合法研究了克拉瑪依原油汽油餾分(~150℃)的單體烴組成。在該餾分中共鑑定出74個單體烴,已定量分析出的烴組成佔汽油的93%(重量)。其中芳烴佔4.6%(重量,對汽油,下同),主要為間-二甲苯(1.8%)和甲苯(1.3%);烷烴佔57.4%,正烷烴和異烷烴的比為1:1.45,主要成分為正戊烷(5.6%)、正庚烷(5.5%)、正辛烷(5.2%)、2-甲基庚烷(6.0%)、2-甲基戊烷(4.9%)和2,6-二甲基庚烷(4.4%);環烷類佔31%,其中環已烷類和环戊烷類的比為3.43:1,環已烷中以1,1,3-三甲基環已烷(7.4%)和甲基環已烷(5.2%)較多,環戊烷中則以甲基環戊烷(1.4%)最多。本方法的重覆性尚令人滿意。

 
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