查询词典 isopentane

Application of isopentane /cyclopentane foamed rigid polyurethane in refrigerators is introduced.

介绍碳氢发泡新一代替代技术：环戊烷-异戊烷发泡聚氨酯硬泡技术在冰箱生产中的应用情况，并从发泡工艺及性能上与环戊烷发泡体系进行了比较。

This paper analyzed the influence of isopentane concentration on dew point temperature and reaction load in condensate operation.

分析了冷凝态操作中异戊烷浓度对露点温度和反应负荷的影响，通过理论计算，总结生产经验得出了确定露点温度和反应负荷的方法以及冷凝态操作时生产负荷控制的最佳范围。

There is more methane,ethane, isobutane and isopentane in shaly limestone than in marlite.

泥灰岩比纯灰岩所产气体中含有更多的甲烷、乙烷、异丁烷和异戊烷。

The higher selectivity to isopentenes, however, was regarded as a consequence of both insufficient active sites for further hydrogenation of isopentenes to isopentane and lower electronic interaction between Pd and the alumina surface.

而较高的选择性则可归因於没有足够的钯活性中心可供异戊烯进一步氢化生成异戊烷以及钯金属和氧化铝间较低的电子效应所致。

Isoprene could be deeply hydrogenated to isopentane on nickel catalyst.

异戊二烯在镍基催化剂作用下可深度加氢为异戊烷。

Through study and analysis, heavy hydrocarbon was integratedly taken use of to lower down the consuming isopentane in this technology thus to reduce the production cost, in this way the benzene could be successfully stripped off to reach up to a value within the safe limit.

经过研究分析，将重烃综合利用，使异戊烷消耗量和成本大大降低，且同样能达到将苯含量降到安全限度内的目的。

In LNG factories, there were many disadvantages like the cost will be extremely high because huge quantities of isopentane had to be used in the previous debenzene technology by use of the similarity and compatibility theorem.

LNG工厂原来的脱苯工艺是利用"相似相溶"原理，用异戊烷脱苯，但存在异戊烷消耗量太大，成本较高等诸多弊端。

The chemical speciation of VOCs in indoor air was similar to the outdoor, and the dominant species were isopentane, benzene, toluene, propanal, propene and dichloromethane.

结果表明，室内总VOCs浓度高于室外，烷烃是含量最丰富物种，平均占室内外空气中定量VOCs总浓度的32.8%。

The concentrations of isopentane, 2-methyl-pentane, pentane and 3-methyl-pentane which are from automobile exhaust and gasoline evaporation were highest in alkanes. Benzene/toluene ratio was close to 0.5 which is the characteristic value of automobile exhaust. The concentrations of pinene and isoprene were highest in alkenes.

烷烃类物质中异戊烷、2-甲基戊烷、正戊烷和3-甲基戊烷等机动车尾气或汽油挥发特征性物质浓度最高；芳香烃类物质中苯／甲苯的特征比值略高于机动车尾气排放特征比值0.5；烯烃类物质以植物排放的蒎烯、异戊二烯为主。

The selected prepared catalyst for isomerization of light oilis used under the reaction conditions of 260°C, 2.0MPa, WHSV=1.0h-1 , H2/Hydrocarbon molarration 4.0, n-pentane conversion rate is 62.17%,isopentane yield is 57.01%(isomerization rate is58.00%), isopentane selectivity is 91.60%, liquid product yield is 94.84%.

在 T=260°C，P= 2.0MPa ，WHSV= 1.0h-1 ，H/C5= 4.0 时，正戊烷转化率为 62.17%，异戊烷收率为 57.01%(产率为58.00%)，选择性为 91.60%，液体产物收率为 94.84%。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。