分馏

Application of deacidification technology in Ⅳ atmospheric and vacuum distillation unit of Zhonghai Asphaltum Stock Company is expounded.

目前，我国炼油厂对馏分油(直馏柴油、减压溜分油)脱酸多采用碱洗电精制工艺和加氢精制工艺。

After enriched by flash, benzoic acid-containing fraction was obtained below 210 ℃ and benzyl benzoate -fluorenone-containing fraction was between 220 and 260 ℃,then these fractions were separated by vacuum distillation respectively.

废料通过闪蒸，在210℃以下得到了富集苯甲酸馏分，在220—260℃之间得到了富集苯甲酸苄酯和芴酮馏分；之后对各馏分进行高真空减压精馏，得到了苯甲酸、苯甲酸苄酯和芴酮等产品，纯度分别可达95%，91%和92%。

The fraction of benzyl benzoate and fluorenone were enriched from benzoic acid residua by flash distillation,then separated by vacuum batch distillation,so the recovery of benzoic acid residua was implemented.

依据相关文献确定了通过闪蒸法富集苯甲酸釜残液中的苯甲酸苄酯和芴酮馏分，其后减压间歇精馏分离富集馏分，实现了苯甲酸釜残液的回收利用。

Math ActivityMaker: Fractions creates instant worksheets for Greatest Common Factor, Least Common Multiple, Adding, Subtracting, Multiplying, and Dividing Fractions, Reducing Fractions, Greater Than/ Less Than, Value-Matching, Fraction Strips, and Fraction Fill-Ins.

数学activitymaker ：馏分造成即时的工作，为最大的共同因素，最小公倍数，加入，减去，乘以，除以组分，减少馏分，大於/少於，价值匹配，分数条，和分数填写程式。

The pyrolysis performance of naphtha and light diesel oil from crude oil of Kazakhstan was carried out.

对蒸馏所得的石脑油馏分和轻柴油馏分进行了裂解性能评价。

Adsorption and reaction of H〓 and nitrobenzene on the catalyst had been studied by FT-IR method.

除了成本较高外，传统的用于混合碳四馏分加氢的贵金属催化剂的选择性也很难提高，本文研究了Cu-Co-Ce／Al〓O〓催化剂的混合碳四馏分加氢除炔性能，这在国内还没人涉足，国外有关研究也较少。

The experiments for determining the mechanism and kinetics of catalytic pyrolysis reaction for a simple petroleum feedstock, were carried out in a batch micro-reactor using Daqing light gas oil. The results showed that carbonium and free radical reactions were the key reactions in catalytic pyrolysis. The carbonium ions were induced by catalytic reaction, whereas free radical reaction was predominantly due to thermal cracking.

首先在重油微反装置上考察大庆减压馏分油催化裂解反应产品分布，并将反应结果与相同温度范围内的热裂解反应相比较，二者的产品分布随温度等操作参数的变化规律明显不同，进而推断催化裂解反应过程为正碳离子反应机理和自由基反应机理并存；并建立了大庆减压馏分油催化裂解消失动力学模型，求得了化学反应速率常数。

Technology I is mainly used in the deacidification of high-acidity, high-density and high-viscosity atmospheric and vacuum distillate.

其中，Ⅰ型技术主要用于各种高酸值、高密度和高黏度的常压馏分油与减压馏分油的脱酸精制。

The results showed that this solvent can remove most of the acidic substances.For Dagang third vacuum side-stream distillate,the ratio of deacidification can reach over 75%.

实验研究表明，该脱酸溶剂可有效脱除润滑油馏分中的酸性物质，对大港减三线馏分油，其脱酸率可达75%以上。

Fit , the fractions in different temperature ranges were ingathered by rectifying wash oil azeotropic distillation were done with the different fractions and ethanediol respectively .

首先精馏洗油，切取不同温度段的馏分，然后分别与共沸剂乙二醇进行共沸精馏试验；在共沸精馏中，通过改变馏分与共沸剂的质量比和回流比，考察了不同条件对喹啉纯度的影响。

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。