分馏

Hydrogenation of anthracene oil projects take the sets of coal tar distillate hydrogenation technology and mature technology of Shanghai shengbang Petroleum Chemical Technology Co., Ltd.

蒽油加氢项目采用上海胜帮石油化工技术有限公司的成套煤焦油馏分加氢工艺和成熟的技术。

Anthracene oil, anthracene paste, distn.

蒽油，蒽糊，蒽馏分

Anthracene oil, anthracene

3蒽油，蒽糊，蒽馏分

The results showed that main properties of base oil met the requirements.

结果表明，窄馏分油的主要性能指标达到使用要求。

In order to decrease copolymerization loss of isoprene during thermal dimerization of cyclopentadiene in C5-fraction,the effect of three inhibitors,diethylhydroxylamine,p-tert-butylcatechol and o-nitrophenol,on dienes' polymerization in the process was investigated by experiment with sealed glasstube.

为减少C5馏分环戊二烯热二聚过程中异戊二烯的聚合损失，采用封管实验方法考察了添加阻聚剂二乙基羟胺、对叔丁基邻苯二酚、邻硝基苯酚对热二聚过程中各二烯烃组分聚合程度的影响。

Results showed that the high content of TFs could be obtained by collection the fractions of special zones of column chromatography when crude TFs used as raw material, NAK as adsorbent and the elutes were concentrated by vacuum evaporator and freeze-dried.

结果表明：以茶黄素粗品为原料，NKA为柱填充料，收集解吸液一定区段的馏分，真空浓缩、冷冻干燥，即可制得高含量茶黄素制品，得率为48.04％，茶黄素总量大于15％。

Based on the shortage of light fractions in Chinese crude oils, ethylene production hasto use various feedstocks.

基于我国原油中轻质馏分油少的特点，我国乙烯生产必须使用多种原料。

The aim of their efforts, an effective catalytic cracker to convert crude oil into gasoline, using a fluidised bed.

这场努力的目标，是使用流化床催化裂化器把原油转化为汽油。因此，第一步就要将原油分割成更易处理的馏分。

With gas chromatographic and mass spectrum analysis technology,the chemical composition of biomass tar and its distillation s were analyzed.

主要采用色谱-质谱联机成分分析法对生物质焦油及其馏分试样进行成分分析。

ASTM D3227-02a Standard Test Method for Sulfur in Gasoline, Kerosine, Aviation Turbine, and Distillate Fuels.

电位差法测定汽油、煤油航空汽轮机燃料及馏分燃料中硫醇态硫含量的试验方法。

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。