分馏

And then is the 2 to 4 ring PAH, in which the content of naphthyl- and phenanthryl- substance is more than 70%.

轻质馏分脂肪烃主要为环烯烃和二烯烃等烯烃，烷烃中以环烷烃居多；中质以上馏分的脂肪烃主要由C_(13)～C_(32)的正构烷烃组成。

The experimental result showed that, the fraction oil depickling solvent technology has wide scope of material oil, and the sodium hydroxide amount used to drop 67~75%, emulsifies completely eliminates, the fraction oil loss drops 50~60%; The depickling solvent regenerative cycle use, doesn't have the waste lye to discharge, the environmental pollution is degraded greatly.

实验结果说明，馏分油脱酸剂技术具有适应原料范围宽，烧碱用量下降67%～75%，完全消除乳化，馏分油损失下降50%～60%；脱酸剂再生循环使用，无废碱液排放，环境污染大为降低等优点。

It first uses the product drawing plate temperature from the crude distillation column and its oil partial pressure to calculate the whole boiling range of the side products, and utilizes the Packie curve method to calculate the separation accuracy between the fractions, and thus building the process mechanism based qualities on—line calculation models.

并首次使用原油蒸馏塔产品抽出层温度及其油气分压来计算各侧线产品的全馏程，还利用Packie曲线法来计算各馏分油之间的分离精度，从而建立了基于工艺机理的质量在线计算模型。

Organic Neroli Distillate Soothing neroli distillate softens skin, calms irritated skin and improves skin's capillary function .

有机橙花馏分油-舒缓橙花馏分油滋润皮肤，镇静刺激的皮肤，改善皮肤的毛细血管功能。

Burning a pole results in painful chemical burns because the installer usually winds up with a chest and legs full of splinters coated with creosote, a coal tar distillate used to preserve the wooden pole.

燃烧电线杆会导致化学烧伤，非常疼痛，因为安装人员通常会卷起，胸部和腿部沾满涂了木馏油的碎片，木馏油是一种煤焦油馏分，用来保护木制电线杆的。

Then quality upgrading scheme was explored in order to solve the high content of sulphur and nitrogen in pyrolytic oil, low flash point as well. Yields of pyrolysis of scrap tires in a pilot-scale rotary kiln under 550℃were firstly summarized. Then elemental composition and physiochemical properties were analyzed on both pyrolytic crude oil and its fractions. Based on these researches, the feasibility that pyrolytic oil is used as fuel was discussed. From FT-IR spectra the functional group compounds were generally acquainted, and by column chromatography analysis chemical compositions were clearly known. Then through GC analysis the absolute content of BTX in pyrolytic crude oil was defined.

本文首先考察了中试回转窑550℃下的废轮胎热解产率及热解原油的元素组成和理化特性，对其作为燃料使用的可行性进行了分析；通过实沸点蒸馏研究了轻质、中质馏分热解油的基本特性：红外分析得出了有代表性馏分热解油的大致官能团组成形式，对热解油的强芳香性和部分不饱和性有了整体了解；化学族组成分析进一步了解了热解油内在化学族组成和含量，对热解油的内在性质有了更为深入理解；气相色谱分析对热解油中富含的苯、甲苯和二甲苯进行绝对定量，为热解油提取BTX化工原料的经济性提供了参考。

In parallel, aliquots of the five GPC fractions were added to chicken broth in their natural concentration ratios and presented to the trained sensory panelists, who were asked to evaluate the mouthfulness and complexity compared to the blank chicken broth.

将五个 GPC 馏分整份平行地以其天然的浓度比加入到鸡汤当中，然后给感官测试专组与未经加入任何物质的鸡汤对比，对口感 and complexity 进行评定在表格1中显示的数据表明，馏分 III 和 IV 对口感增强活性。

In the experiment distillation method is adopted and distillations in the different temperature range are collected.

组成成分分析采用色谱—质谱联用分析技术，得到生物质焦油及其馏分的组成成分；热动力学特性采用综合热分析仪进行研究，通过测定不同气氛和不同升温速率的热重曲线、微商热重曲线和差热曲线，定性分析生物质焦油及其馏分的蒸发和燃烧等特性，并定量求解热动力学参数。

The thermal kinetics characteristics indicate the nature of the distillations approaches that of the diesel oil and the distillations can be used as the substitutes for petroleum.

由于其具有密度小和疏松多孔的特点，加工后还可成为很好的吸附材料。为了简化操作过程，蒸馏的温度范围可以设为150℃以下和150℃～210℃，可以得到150℃以下馏分的上下层、150℃～210℃馏分和生物质炭四种产品。

By studying TG curve, DTG curve and DTA curve recorded by the computer, nature of the evaporation and combustion of biomass tar and its distillations is analyzed and parameters of their thermal kinetics are computed.

生物质焦油150℃以下上层馏分和150℃～210℃馏分含有多种有用的有机化合物，部分化合物的含量较明显，经济价值很高，具有一定的分离提纯价值。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。