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汽油质量
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  gasoline quality
     An Analysis of Factors Causing Fluctuation of RFCC Gasoline Quality and Relevant Solutions
     RFCC汽油质量波动因素分析及对策
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     The significance of vehicle use gasoline quality upgrading in China is discussed in this paper,
     介绍了中国车用汽油质量升级的意义,回顾了车用汽油质量升级的历程及存在的问题,提出了车用汽油质量升级的对策和建议。
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     Study on the upgrade of gasoline quality
     汽油质量升级研究
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     Technical Measures for Gasoline Quality Upgrading and the Efficiency
     汽油质量升级的技术措施及效果
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     Application of Hydrotreating Technology in Gasoline Quality Upgrading and Its Research Progress
     加氢技术在汽油质量升级中的应用及研究进展
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  quality of gasoline
     The Improvement of the Cracking Quality of Gasoline by CALP Catalysts
     利用CALP复合型催化剂提高裂解汽油质量
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     With the increasingly polluted environment and developing auto industry, the demand for engine performances and emissions is stronger and stronger, which determines the suitable demand for the quality of gasoline.
     面对日益严峻的环境污染,伴随着汽车工业的发展、对汽车的性能和排放的要求也越来越高,这也决定了要有与之相适应的汽油质量要求。
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     Development of Standard for the Quality of Gasoline and Solutions for the Improvement of Quality
     汽油质量标准的发展及提高汽油质量的措施
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     Quality of gasoline oils in Beijing.
     北京地区汽油质量状况
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     When pH was controlled at 6.0~8.0, the corrosion rate of the dew point section of the tower overhead was only 0.06 mm/yr, which was much lower than the corrosion rate of 0.32 mm/yr when ammonium was injected. In addition, it had no negative impact on the quality of gasoline.
     当pH值控制在 6.0~ 8.0时 ,塔顶露点区的腐蚀率仅为 0 .0 6mm/a ,远低于注氨时的 0 .3 2mm/a的腐蚀速率 ,而且对汽油质量无不良影响
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  naphtha quality
     The propylene yield was 11.43wt%, which fulfilled the feedstock requirement of the down stream 70 kt/a polypropylene unit. The naphtha quality met the standard of 90# unleaded gasoline.
     其中丙烯产率为 1 1 .43%,可满足 70 kt/a聚丙烯的原料要求 ,汽油质量超过 90号无铅汽油标准 ,柴油质量优于重油催化裂化柴油。
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     THE EFFECT OF INFERIOR SOUR HEAVY FEEDSTOCK ON CRACKED NAPHTHA QUALITY AND ITS COUNTERMEASURES
     含硫劣质原料对催化裂化汽油质量的影响及对策
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     Effects on inferior resid FCC naphtha quality were discussed by using the test data and the productive data.
     运用实验分析数据及工业生产数据讨论了含硫劣质原料对重油催化裂化汽油质量的影响。
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     By selecting the active component of catalyst and proper etherified process parameters, a reaction temperature of 70℃, LHSV of 1h -1 and methanol/olefin molar ratio of 1.25, the obtained etherified oil was blended with the original heavy portion of FCC naphtha at natural ratio. The olefin content of the mixture reduced by 5.5-8.6 percentages, and RON increased by 0.2-0.4 units, thus, the naphtha quality was improved.
     通过选择催化剂活性组分和适宜的轻汽油醚化工艺条件 ,即反应温度 70℃ ,液体空速 1.0h-1,醇烯摩尔比为 1.2 5 ,催化裂化轻汽油经醚化并与未经醚化的重催化裂化汽油按自然比调合后 ,汽油烯烃含量可降低 5 .5~ 8.6个百分点 ,RON可增加 0 .2~ 0 .4个单位 ,汽油质量得到明显改善。
短句来源
  “汽油质量”译为未确定词的双语例句
     Development Trend and Quality Analysis of Clean Gasoline Home and Abroad
     国内外清洁汽油质量分析及发展趋势
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     Test result shows that FCC gasoline desulfurization rate is about 70%, olefin saturation rate 60% to 70% , gasoline octane number loss 0 to 1.2, C5+ gasoline yield 93.2% to 97.9% and the chemical hydrogen consumption is 0.11 to 0.35% .
     试验结果表明OTA技术的催化裂化汽油质量脱硫率70%左右、烯烃体积饱和率60%-77%。 汽油抗爆指数损失0-1.2、C5+汽油质量收率93.2%-97.9%、化学质量氢耗为0.11%-0.35%。
短句来源
     The addition of LOSA-1 had little effect on the distribution of product, the quality of gasoilen and the process capability of oil.
     加入LOSA-1对产品分布、汽油质量及装置的加工能力影响不大。
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     The results showed that the plant run well with simple operation. The mercaptan content of refined gasoline decreased from (20~50)×10 -6 to (4~9)×10 -6 with stable quality and could meet the demand of 90 # gasoline.
     结果表明,装置运行情况良好,操作简单,汽油精制后,硫醇含量可从(20~50)×10-6降至(4~9)×10-6,精制汽油质量稳定,完全能满足90#汽油要求。
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     Study on cluster analysis method for gasline mass
     聚类分析方法用于汽油质量研究
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  gasoline quality
Automotive Gasoline Quality Analysis by Gas Chromatography: Study of Adulteration
      
The addition of organic solvents (light aliphatic, heavy aliphatic and aromatic hydrocarbons) in Brazilian gasoline is unfortunately very frequent, and this illicit practice impares gasoline quality.
      
Screening Brazilian Automotive Gasoline Quality through Quantification of Saturated Hydrocarbons and Anhydrous Ethanol by Gas Ch
      
Basic requirements for automotive gasoline quality
      
Automotive gasoline quality change during storage in buried tanks
      
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  quality of gasoline
Realization of the VTTKK process enables us considerably to increase the resources of unsaturated hydrocarbons and to improve the yield and quality of gasoline and the economics of the process.
      
  naphtha quality
The drawbacks of the ASTM D 4929 method and the advantages of fast determination of the OCC content directly in crudes with the possibility of predicting naphtha quality are demonstrated.
      
Depending on the origin naphtha quality can vary over a wide range, which necessitates quality control of the complex feed mixtures.
      


Direct synthesis of gasoline from CO and H_2 is studied using com-posite catalysts—mixtures of precipitated Co and ZSM-5,sintered Fe-Mnand ZSM-5 and fused Fe and ZSM-5.The shape selective property of ZSM-5 zeolite greatly improves the product distribution of F-T synthe-sis.The products are composed of large portion of low molecular wei-ght hydrocarbons(lower than C_(11)),more aromatics and no oxygenated products.The quality of gasoline was thus improved.

本文研究了CO+H_2直接合成汽油反应中复合催化剂的催化特性。复合催化剂是由F-T 催化剂与ZSM-5分子筛组成的,包括沉淀钻/ZSM-5(Ⅰ)、铁-锰/ZSM-5(Ⅰ)和熔铁/ZSM-5(Ⅱ)催化剂。由于ZSM-5是具有独特的形状选择性的固体酸催化剂,因而改善了F-T 合成反应的选择性。试验结果证明,复合催化剂使F-T 反应产物中无大于C_(11)的烃类,汽油收率较高,且其中含有大量芳烃,提高了汽油质量。同时产物中也无含氧化台物。根据合成产物组成分析结果,对于复合催化剂上CO+H_2反应途径进行了若干探讨。

China has become one of the largest gasoline production and consumption countries in the world with an annual motor gasoline output of more than 20,000,000 tons. However, the nationwide civil automobile population is only 6,000,000 plus, of which the proportion of trucks is high, the compres- sion ratio is low and the gasoline consumption level is 20~30% higher than foreign countries. The petroleum resource in China is limited, the domestic gasoline market has long been short of supply, and the development of...

China has become one of the largest gasoline production and consumption countries in the world with an annual motor gasoline output of more than 20,000,000 tons. However, the nationwide civil automobile population is only 6,000,000 plus, of which the proportion of trucks is high, the compres- sion ratio is low and the gasoline consumption level is 20~30% higher than foreign countries. The petroleum resource in China is limited, the domestic gasoline market has long been short of supply, and the development of automobile is constrained by energy resources. By speeding up the upgrading of gasoline and by increasing the compression ratio to adopt high octane gasoline will result in a saving of at least 700,000~800,000 tons of gasoline per year. Accordingly, 5 different schemes for the up- grading of gasoline are suggested. After primary analysis and comparison and discussions in the Coor- dination Committee of Automobile and Automotive Oil Products, it is believed the scheme No. 2, i. e. to increase the proportion of premium gasoline to 70~80% by 1993 and to completely change over to premium gasoline by 1995, is probable to realize.

目前我国车用汽油年产量已超过20.0Mt,成为世界汽油生产和消费大国之一,但全国民用汽车保有量仅600多万辆,载重车比例大,压缩比低,油耗水平比国外高约20~30%。我国石油资源有限,市场油品供应长期紧张,汽车发展受能源制约。加速汽油质量升级,提高汽车压缩比使用高辛烷值汽油一年至少可节油700~800kt。设想了“八五”期间汽油升级的5种不同方案。通过初步测算和分析比较,经汽车与汽车用油材料发展协调委员会讨论,认为力争实现方案2的目标是可能的,即1993年高标号汽油的比例将达到70~80%,1995年实现车用汽油的全面升级换代。

Caustic-free sweetening for Fee gasoline was conducted on a pilot plant by using AFS-12 catalyst and ZH-22 cocatalyst. A six month testing result showed that the process was simple, stable and ease of operation. The sweet gasoline passed the doctor test as well as the copper strip test and met the specification of RON 90 gasoline. The process used neither caustic alkali nor ammonia spirit and liquid ammonia, and was entirely no waste liquid draining.

应用AFS-12催化剂和ZH-22助催化剂进行催化裂化汽油无苛性碱脱臭中试放大试验,试验结果表明,该工艺工艺流程简单、合理,操作方便、稳定。ZH-22助催化剂用量在20~60μg/g,可使脱臭汽油通过博士试验,铜片腐蚀合格,满足90号汽油的质量要求。该工艺完全不用苛性碱,也不用氨水或液氨,完全无废液排放。

 
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