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- There isno significant improvement on cetane number when the extraction... 精制后柴油的十六烷值和实际胶质均可达到国家要求。
- Cyclohexyl nitrate is an effective cetane number improver for diesel oil. 硝酸环己酯是一种有效的柴油十六烷值改进剂。
- Cetane number is an important quality index that the diesel oil burns. 柴油十六烷值是柴油燃烧的一项重要质量指标。
- Cetane Number (CN) of diesel has effect on cold startability and emissions in a diesel Engine. 摘要柴油的十六烷值对柴油机冷起动和排放有一定影响。
- Bio-fuel has the advantages of less emission,higher cetane number,and no carcinogens produced. 生物柴油具有排烟少、十六烷值高、且不会产生致癌物质等优点。
- So adding improving agents of cetane number into diesel oil is an effective and easy-using method with low costs. 因此,柴油中加入十六烷值改进剂是一种成本低、简便易行、行之有效的方法。
- The results indicate that the ignition delays of combustion increase with the increase of the octane number and the decrease of the cetane number. 计算结果表明,随着燃料十六烷值的增加,着火延迟期减小;随着燃料辛烷值的增加,着火延迟期增加。
- According to its indicated pressure diagrams measured under the condition of burning diesel fuels with different cetane number in D. 通过实测直喷式柴油机燃烧不同十六烷值柴油时的缸内压力示功图,以此计算出相应的燃烧放热规律。
- The re sults show that the fuel cetane number and engine exhaust smoke decrease and eng ine thermal efficiency improves with adding DMC in diesel fuel. 结果表明,在柴油中添加DMC,燃料十六烷值降低,发动机热效率提高,烟度减小。
- The initial pressure has slighter influence on the ignition delay for the fuels with high cetane number compared with the high octane number fuels. 进气压力的变化对高十六烷值的燃料着火延迟期影响较小,但对辛烷值高的气体燃料着火延迟期有一定影响。
- SMDS Gasoil has excellent combustion properties with exceptionally high cetane number and flash point, negligible sulphur and aromatics. 意思是这种柴油具有优异的燃烧性能,具有特别高的十六烷值以及闪点,几乎不含硫和芳香烃。
- The effects of the three hydrotreating processes on sulfur and nitrogen contents and cetane number of FCC diesel oil have been tested and analyzed. 为适应清洁燃料的生产,对催化柴油低压加氢精制、中压加氢改质、高压加氢裂化进行了对比试验,考查了3种加氢工艺对催化柴油的硫含量、氮含量、十六烷值的影响。
- It is a supplementary tool for predicting cetane number with considerable accuracy when used with due regard for its limitations. 这是一个具有很大准确性的预测十六烷值的辅助工具,但应适当注意到其局限性。
- A diesel fuel cetane number improver, which constituent is a naphthenic nitrate, is developed, and physico-chemical properties of this im-prover is determined. 研制了一种成分为脂环族硝酸酯的柴油十六烷值改进剂,并测定出这种改进剂的一系列理化性质。
- Combustion was improved and HC emission was reduced at cold modes sudden loading operation conditions by using better volatile fuel with the same cetane number. 采用具有相同十六烷值、挥发性好的燃料,可有效改善冷态增负荷工况下的燃烧,降低HC排放。
- The middle distillates of the light fraction from DCL had the characteristics of low cetane number and high density, which needed to be further upgraded. 煤液化轻油经过加氢稳定处理后,中间馏分油的十六烷值低、密度高,还需进一步加工。
- The numerical result calculated by the formula for estimating the cetane number of distillate fuels from American Petroleum Institute (API) gravity and midboiling point. 用美国石油学会比重度和中沸点估算馏分燃料十六烷值公式计算得到的数值结果。
- The significance, properties and characteristics, action mechanism and classification of cetane number improver are introduced systematically in this paper. 就柴油十六烷值改进剂的种类、作用机理及其研制的重要意义做了综述,介绍了部分十六烷值改进剂的性能特点。
- Through Fischer-Tropsch (F-T) synthetic process, coal can be converted to F-T diesel fuel that has high cetane number, very low sulfur and aromatic contents. 作者单位:西安交通大学能源与动力工程学院汽车工程系;
- Moreover, there are two limits for the fuel cetane number affect the opacity smoke emission.The effect builds up while the cetane number is less than 50 or more than 60. 对于排气烟度,燃料十六烷值存在两个界限,当十六烷值小于 50 或大于 60 时,对消光烟度影响明显加剧。