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十六烷值改进剂     
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  cetane number improver
     A cetane number improver,diisopentyl oxalate,was synthesized with Ti(SO4)2/SiO2 as a catalyst. The reaction conditions were studied. The optimun conditions were as follows: surpported Ti(SO4)2/20% , and the mass ratio of catalyst to reactants was 5% , molar ration of acid to alcohol was 1/2.8,The reaction time was 1.5 hours.
     采用负载法制得Ti(SO_4)_2/SiO_2为催化剂合成了一种柴油十六烷值改进剂——草酸二异戊酯,在负载量20%,催化剂用量为草酸质量的5%,酸酶摩尔比1/2.8,反应时间1.5h,草酸的酯化率高达97.4%。
短句来源
     The results show that added 0.2% volume fraction of cetane number improver(iso-amyl nitrite)the combustion performances of diesel/ethanol blends are equivalent to that of the mixed blends reduced 10% ethanol fraction.
     研究结果表明:十六烷值改进剂(亚硝酸异戊酯)的体积分数为0.2%时,可使其着火性能与乙醇的体积分数减小10%时的水平相当.
短句来源
     Effects of cetane number improver,surfactants and organometallic compounds as diesel fuel additive on soot emission reduction were investigated with a 6120Q DI diesel engine.
     采用6120Q直喷式柴油机对十六烷值改进剂、表面活性剂和有机金属化合物作为柴油添加剂降低柴油机碳烟排放的规律进行了试验研究。
短句来源
     New Progress of Cetane Number Improver
     十六烷值改进剂的新进展
短句来源
     Effect of Cetane Number Improver on Heat Release Rate and Emissions of High Speed Diesel Engine Fueled with Ethanol-Diesel Blend Fuel
     十六烷值改进剂对乙醇-柴油发动机放热率与排放的影响
短句来源
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  cetane improver
     PERFORMANCE OF TYPE CT-878 CETANE IMPROVER
     CT-878柴油十六烷值改进剂
短句来源
     DEVELOPMENT OF CETANE IMPROVER QT-01 AND ITS PERFORMANCE AND ROAD TESTS
     柴油十六烷值改进剂QT-01的研制、添加效果及应用试验
短句来源
     The Research Progress on Diesel Fuel Cetane Improver
     柴油十六烷值改进剂的研究进展
短句来源
     Performance and application of diesel fuel cetane improver
     柴油十六烷值改进剂的使用性能与应用
短句来源
     Research and Application of Diesel Fuel Cetane Improver
     柴油十六烷值改进剂的研究及应用进展
短句来源
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  cetane number improvers
     A Cetane Number Improvers in Diesel Fuel 2. Synthesis of Cyclohexyl Nitrate
     柴油十六烷值改进剂 2.硝酸环己酯的合成
短句来源
     Cetane Number Improvers in Diesel Fuel 1. Synthesis of Isooctyl Nitrate
     柴油十六烷值改进剂——1.硝酸异辛酯的合成
短句来源
     A Cetane Number Improvers in Diesel Fuel(Ⅱ) --Synthesis of Cyclohexyl Nitrate
     柴油十六烷值改进剂(Ⅱ)——硝酸环己酯的合成
短句来源
     Cetane Number Improvers in Diesel Fuel (Ⅰ) —— Synthesis of Isooctyl Nitrate
     柴油十六烷值改进剂(Ⅰ)——硝酸异辛酯的合成
短句来源
     Investigation of the Properties of Diesel Fuel Cetane Number Improvers Using the Method of Spontaneous Ignition Temperature
     基于自燃点法的柴油十六烷值改进剂性能研究
短句来源
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  “十六烷值改进剂”译为未确定词的双语例句
     Cetane Number LH—91 Type Improver of Diesel Fuel
     LH—91型柴油十六烷值改进剂
短句来源
     Different percentages of cetane number enhancer(0~0_0,0.2~0_0,0.4~0_0) were added to blends,and the engine tests were performed on a high speed diesel engine.
     在含 1500乙醇的柴油中加入不同量(0、0. 200和 0. 400)的十六烷值改进剂,并在一台高速柴油机上分别对这些燃料进行了试验研究.
短句来源
     In addition, the development trend was summarized, ether-like oxygenated compounds as CN improver only constituted by C、H、O three elements, can promote completely burning of diesel fuel, reduce the fume, accord the requirement and the development tendency of environment neighbor production.
     另一种含氧化合物—醚类作为十六烷值改进剂仅由C、H、O 3种元素组成 ,在提高十六烷值的同时 ,也可以促进柴油完全燃烧 ,降低尾气烟度 ,符合环境友好产品的要求和发展趋势。
短句来源
     The laborat-ory and road tests of QT-01 doped diesel fuel showed that the sensitivity toQT-01 is somewhat different for diesel fuels from various sources.
     就国内不同产地的柴油进行了添加试验,不同产地的柴油对十六烷值改进剂 QT—01的感受性不同。
短句来源
     Results of rig test, road test and application test indicate that this CN improver has good susceptibility to diesel fuels. With a dosage of 0.05~0.3% (wt) the CN improver of diesel fuel can be enhanced by 1~9 units, equivalent to the similar foreign products.
     结果表明,该硝酸异辛酯十六烷值改进剂对柴油有较好的感受性,添加0.05~0.3%后十六烷值可提高1~9个单位,与国外同类产品相当.
短句来源
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  cetane improver
From this result, for the CRDI diesel engine, 15% of ethanol with cetane improver is recommended to reduce PM to less than half.
      
The oxygenated fuel and cetane improver contribute to the suppression of soot generation.
      
  cetane number improvers
Effect of paraffins C10-C13, C14-C17, C18-C23, tert-butyl hydroperoxide, cumyl hydroperoxide, and isopropyl nitrate as cetane number improvers for summer- and winter-grade diesel fuels, added in amount of 0.4-5 wt %, is studied.
      


This paper presents the properties and performance of type CT--878 ceta-ne number (CN) improver synergically developed by Shengli Refinery and Xi-an Institute of Modern Chemistry. For diesel fuels from Shengli crude, the CNcan be increased by 4--6 units with the addition of 0. 2 wt% CT--878 whilethe carbon residue and gum still meet the requirement of specification GB252, The performance of CT--878 varies with the composition of diesel fueland the increase in CN can be predicted with an empirical formula.

本文介绍了由胜利炼油厂和西安近代化学研究所开发的CT-878柴油十六烷值改进剂的物理性能和添加性能。对胜利柴油而言,添加0.2m%的CT-878可使柴油的十六烷值提高4—6个单位,而且柴油的残炭、胶质等指标可满足GB252的有关规定。CT-878的添加性能随柴油组成而异,可用经验公式预测十六烷值的改进值。

This paper describes a general method of manufacturing cetane number(CN) improver——alkyl nitrate (QT-01) by mixed acid process.The laborat-ory and road tests of QT-01 doped diesel fuel showed that the sensitivity toQT-01 is somewhat different for diesel fuels from various sources.Generally,a dosage of 0.1-0.3% QT-01 will raise CN by 2—9 units.Engine tests,stora-ge tests and 2×10~4 km road tests indicate that there is essentially no differe-nce in the performance characteristics and storage stability between...

This paper describes a general method of manufacturing cetane number(CN) improver——alkyl nitrate (QT-01) by mixed acid process.The laborat-ory and road tests of QT-01 doped diesel fuel showed that the sensitivity toQT-01 is somewhat different for diesel fuels from various sources.Generally,a dosage of 0.1-0.3% QT-01 will raise CN by 2—9 units.Engine tests,stora-ge tests and 2×10~4 km road tests indicate that there is essentially no differe-nce in the performance characteristics and storage stability between QT-01 do-ped No.0 diesel fuel and standard No.0 diesel fuel.The development of QT-01 CN improver has opened up a new way for improving the quality of do-mestic diesel fuels.

本文介绍了“混酸法”合成柴油十六烷值改进剂——硝酸烷基酯的一般方法。就国内不同产地的柴油进行了添加试验,不同产地的柴油对十六烷值改进剂 QT—01的感受性不同。一般来说,添加0.1V%QT—01可使柴油十六烷值增加2—5个单位,添加0.2V%可增加4—7个单位,添加0.3V%增加6—9个单位。同时,进行了台架及燃烧分析试验、油品储存试验和两万公里行车试验。试验表明:加剂(QT—01)0号柴油和标准0号柴油,在使用与储存性能上基本无差别。QT—01十六烷值改进剂的研制成功,为改善柴油质量开辟了一条新的途径。

A cetane number (CN) improver, iso-octyl nitrate, was prepared and its susceptibility to diesel fuel as well as the storage stability of doped diesel fuel were investigated. Results of rig test, road test and application test indicate that this CN improver has good susceptibility to diesel fuels. With a dosage of 0.05~0.3% (wt) the CN improver of diesel fuel can be enhanced by 1~9 units, equivalent to the similar foreign products. The doped diesel fuels can be satisfactorily used by diesel engine cars of various...

A cetane number (CN) improver, iso-octyl nitrate, was prepared and its susceptibility to diesel fuel as well as the storage stability of doped diesel fuel were investigated. Results of rig test, road test and application test indicate that this CN improver has good susceptibility to diesel fuels. With a dosage of 0.05~0.3% (wt) the CN improver of diesel fuel can be enhanced by 1~9 units, equivalent to the similar foreign products. The doped diesel fuels can be satisfactorily used by diesel engine cars of various types. The specification of this CN improver is suggested.

本文介绍了一种柴油十六烷值改进剂——硝酸异辛酯的研制情况,叙述了该剂对柴油的感受性,以及加剂后柴油的储存安定性、台架试验、行车试验和使用试验.结果表明,该硝酸异辛酯十六烷值改进剂对柴油有较好的感受性,添加0.05~0.3%后十六烷值可提高1~9个单位,与国外同类产品相当.加入改进剂的柴油能满足各类型柴油机车的使用要求.文中还提出了该产品的质量指标.

 
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