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   汽油添加剂 在 化学 分类中 的翻译结果: 查询用时:0.878秒
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汽油添加剂
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  “汽油添加剂”译为未确定词的双语例句
    With development of many new processes, much more DMC is needed as an intermediate in the synthesize polycarbonates and isocyanates etc.
    随着DMC在生产聚碳酸酪、异氰酸酯、合成新型润滑油以及作为汽油添加剂等新用途的开发,其需求量还会进一步增大。
短句来源
    Higher alcohols and MTBE are used as additives in gasoline.
    低碳混合醇及甲基叔丁基醚 (MTBE)都可作为汽油添加剂
短句来源
    Nowadays, MTBE is the more popular additive, but MTBE has severely pollution to the environment and it has been forbided to be used in some developed countries.
    乙基叔丁基醚(ETBE)是较甲基叔丁基醚(MTBE)更为优良的汽油添加剂.
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  gasoline additives
Other oxygenates used as gasoline additives are ethers such as ethyl tert-butyl ether (ETBE), tert-amyl methyl ether (TAME), and alcohols such as tert-butyl alcohol (TBA).
      
However, quite significant advances have been made in recent years concerning the microbiology of the degradation of MTBE and other oxygenated gasoline additives.
      
The potential impact of gasoline additives on air quality in developing countries
      
Both substances are widely used as fumigants for carpet and upholstery, as gasoline additives, and as organic solvents.
      
The purpose of this additive is to enhance the octane, replace the use of lead-based anti-knock gasoline additives and reduce aromatic hydrocarbons.
      
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  fuel additive
Increased demand for ethanol as a fuel additive has resulted in dramatic growth in ethanol production.
      
One of its well known applications is the formation of methyl ethyl ketone, by dehydration, which can be used as a liquid fuel additive.
      
Methyl tert-butyl ether (MTBE) has been used as a fuel additive at levels of 2-11% in Taiwan for the past decade.
      
Although lead (Pb) emissions have dropped drastically with the phase-out of tetra-ethyl lead (TEL) as a fuel additive, Pb deposited along highway corridors continues to be of concern because of its toxicity.
      
More research is needed regarding the potential impact from using a Mn-based fuel additive.
      
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The etherification of isopentene by catalyst,benzol sulfonic acid cation exchange resin,has been studied.The results indicats that the resin is an effective catalyst with total conversion of over 97% at 55℃ to 70℃ and CH 3OH/C 5=1.2.The influences of temperature,pressure and CH 3OH/C 5 ratio have also been investigated.

为了适应环保的要求,世界各国已纷纷明令不准使用含铅汽油,而代之以掺有汽油添加剂的无铅汽油,汽油添加剂主要是一些含氧有机化合物。醚类具有可替代汽油组份、不溶于水、调合辛烷值高、蒸气压低和不污染环境等优点,适合作为汽油添加剂。目前已开发了甲基叔丁基醚(M...

The process for preparing TAME is introduced herein. The effecting factors on conversion rate such as compounding ratio, reaction temperature and feed space velocity are studied. The results show that the octane number of TAME is 99 and TAME is an ideal kind of petroleum additives with high octane level.

介绍了甲基叔戊基醚的制备工艺 ,并考察了原料配比、反应温度、进料空速等因素对转化率的影响 ,结果表明 :甲基叔戊基醚的辛烷值 (马达法 )可达 99,是一种理想的高辛烷值汽油添加剂

The application and toxicology of lead-free gasoline additives including methyl tert-butyl ether, methyl tert-amyl ether and Methylcyclopentadienyl manganese tricarbonyl were reviewed. The application of accelerator mass spectrometry in genotoxicity research of environmental pollutant was introduced.

介绍了无铅汽油添加剂甲基叔丁基醚、甲基叔戊基醚及甲基环戊二烯三羰基锰的应用现状和毒理学研究进展 ,提出用加速器质谱法研究新的汽油添加剂甲基叔戊基醚基因毒性的研究方向

 
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