异构烷烃

In order to find the difference of the isotopic composition of different organic compounds before and after complexation, the autogamy standard sample is performed by molecular sieve adsorption to study the variation of the isotope compositions of n-alkanes, isoalkanes and cyclanes.

通过对自配标准样品进行S分子筛吸附试验，测定了用5分子筛吸附法分离前后正构烷烃、异构烷烃和环烷烃碳同位素值，探讨试验前后碳同位素值的变化。

The high degree of purity, combined with the relative inertness of the saturated isoparaffinic structure, minimize s or eliminates adverse reactions in industrial processes and consumer applications.?

该产品的纯度很高，加上饱和异构烷烃结构的相对惰性，能最大限度地减少或消除工业生产过程和消费应用中的有害反应。

Paraffin consists of n-alkane,short p-alkane,naphthene and aromatic, minimal amount of compounds containing elements S,N,O.

石蜡主要是由正构烷烃组成，还有较少的异构烷烃、环烷烃和芳烃，以及含微量S、N、O的化合物。

The selectivity of light isoparaffin was improved obviously, but with the increase of the olefin's selectivity.

在合成产物中，短链异构烷烃的选择性被显著提高，同时也伴随烯烃产物选择性的提升。

Using GC/C/MS on-line carbon isotope analysis technique, we obtained the stable carbon isotope ratios of n-alkanes, iso-alkanes from the light hydrocarbon compositions and pristane, phytane in crude oils in Tarim basin.

本文利用新兴的原油单体烃类在线同位素分析技术测定了塔里木盆地原油及凝析油的正构烷烃、轻烃部分的异构烷烃和植烷、姥鲛烷的稳定碳同位素值。

The content Of isoalkanes decreased when NiSO_4 was loaded, for supported Ni oxidecould promote the dehydrogenation of the precursors of aromatics by unimolecular reactionwhich did not generate negative hydrogen ions, and the carbonium ions could not obtainsufficient negative hydrogen ions to promote hydrogen transfer reaction.

负载氧化镍以后异构烷烃含量下降，氧化镍可以通过脱氢促进芳构化反应，使正碳离子得不到足够的负氢离子饱和使氢转移反应得到抑制。

For example ,the non－ polar materials like hydrocarbons are heavy and draggy as compared to polar emollients,isoparaffins are light and smooth,the polar esters were significantly lighter and smoother,the branched chain and unsaturated esters were exceptionally light and smooth,in the case of straight chain esters,as the emollients become smoother and lighter ,the oiliness increases,in the case of unsaturated and branched chain esters,the emollient becomes lighter ,as well as less oily,when the alcohol chain length is decreased.

研究结果表明，物理化学特性明显影响润肤剂的轻柔感和油亮感，例如类似碳氢化合物的非极性物质相对于极性物质要粘稠些，异构烷烃则轻柔和光滑，带分支链的不饱和酯特别具有轻柔感和光滑感，带分支的不饱和酯相对直链饱和酯在油亮感方面有着特别的不同，直链酯随着产品光滑感和轻柔感的增加，油亮感也增加，对于带分支的不饱和酯而言，产品变得更轻柔，油亮感下降。

Dependent on the palladium role of hydrogenation and hydrogen spillover, the olefins effused from the zeolite capsule catalyst were hydrogenated effectively, mostly converted to isoparaffin.

得益于钯的催化加氢和氢溢流的功能，在基于该三分结构的费托合成反应中，烯烃产物被有效的催化加氢为烷烃，且大部分被转化成了异构烷烃。

A catalyst carrier was designed and synthesized under a new concept. After carrying a precious metal, a new generation of catalysts was obtained. This catalyst can convert straight chain alkanes to isomerized alkanes effectively.

采用新概念设计并合成出催化剂载体，担载贵金属后获得新一代催化剂，该催化剂可在低压条件下，高效率地把直链烷烃转化为异构烷烃。

On the other hand, the by-products of this process are jet fuel and diesel distillations in high quality. White oil in food grade with high content of iso-alkane can also be produced by this process.

结果表明，用高硅SAPO-11分子筛制备的Pd／SAPO-11异构脱蜡催化剂不仅适用于生产高粘度指数的润滑油基础油，还可以生产富含异构烷烃的食品级白油，同时具有比溶剂脱蜡及传统的催化脱蜡工艺基础油收率高、倾点低和副产品质量好等优点。Ⅱ。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。