馏分

The crude carbolic acid was prepared from gasoline alkaline mud by adding sulfuric acid or carbon dioxide.

以炼油厂汽油碱渣为原料，通入硫酸或CO2 中和后去除水相得到粗酚，粗酚经过分馏处理得到馏分在 1 70～ 2 0 0℃的混合酚。

In order to investigate the effect of operating variabls on the yield of aromatics,a certain fraction of a straight run gasoline containing 48.4%naphthenes was catalytically converted into aromatics over a bed of 100 ml 14—20 mesh,granular,platforming catalyst under various opera- ting conditions.

用直馏汽油的某一馏分在装有100毫升14—20筛眼颗粒形铂重整催化剂的反应设备中，进行单程纯氢操作的铂重整反应条件试验以考察芳烃的生成与反应条件变化的关系。

By using established analytical methods for determination of elemental sulfur,hydrogen sulfide,mercaptan,disulfide,total active sulfur and corrosive sulfur in Middle East crude oils were conducted Differences between the sum of various types of active sulfur and total active sulfur,the relationship of total active sulfur and total sulfur in the fraction of IBP to 350 ℃,the relationship of total active sulfur and corrosive sulfur,and the distribution of different active sulfurs in the same crude oil and to...

利用已经建立起来的方法对中东原油中的元素硫、硫化氢、硫醇、二硫化物、总活性硫、腐蚀性硫进行了分析，并讨论了不同类型活性硫的加和值与总活性硫的相关性、初馏点至 3 5 0℃馏分中总活性硫和总硫的关系、总活性硫与腐蚀性硫的关系、同一原油中不同类型活性硫和不同原油中总活性硫的分布以及中东原油在硫化合物分布上与哈萨克斯坦原油的差别等问题。

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。

Under the condition of constant temperature gradient of extraction fractionating column of said separation apparatus a linear pressure boosting mode is used, so that the petroleum heavy oil, in particular petroleum residual oil can be cut into ten-odd or more narrow distillations according to the molecular weights.

在分离装置萃取分馏柱恒定温度梯度下，采用线性升压方式，可以将石油重质油，特别是石油渣油大致按分子量的大小切割成十几个或甚至更多个窄馏分。具有分离效果好，过程简单，靠近生产实际的特点；对生产实际有指导作用。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐