煤焦油是伦敦煤气道路照明几乎无限的副产物，利用便宜量大的煤焦油，染厂于1857年开始生产世界上第一种合成染色材料。
Utilising the cheap and plentiful coal tar that was an almost unlimited byproduct of London's gas street lighting, the dye works began producing the world's first synthetically dyed material in 1857.
对煤焦油主要组分进行准确测定，可为煤焦油的综合利用、煤焦油集中加工工艺参数的设计以及煤焦油加工下游产品的开发提供详细的基础数据。
The exact determination of the main components in coal tar can provide basic data for the comprehensive utilization of coal tar and the development of its downstream products.
煤焦油各馏分加工技术的选择，对煤焦油加工厂的整体水平有很大影响。
The selection of process technology of coal tar fraction have an effect on general level of coal tar plant.
对煤焦油沥青进行深加工以提高沥青产品的附加值是煤焦油加工中的一个重要问题。
Further processing of coal pitch to raise the additive value is a key problem in coal tar processing.
介绍了重油替代煤焦油的准备工作，煤焦油在使用中出现的问题以及原因分析和解决途径。
This paper described the preparations for substituting heavy oil by coal tar. It pointed out the problems from coal tar and advanced the reasons and the measures.
通过B-L公式计算了煤焦油沥青的结构，采用扫描电镜（SEM）和能谱分析研究了煤焦油沥青中的喹啉不溶物（QI）。
The characteristic parameter of coal tar pitch was investigated by B-L equation, The structural compositions of QI from coal tar pitch were studied by means of SEM and energy spectrum.
通过过滤分离实验，煤焦油中的固含量大大降低，过滤后的煤焦油可以达到催化加氢制取汽油、柴油的要求。
After the filtration separation, the solid matter in the coal tar was greatly reduced. The filtrated coal tar can meet the demand of being turned into the gasolene and the diesel oil.
通过过滤分离实验，煤焦油中的固含量大大降低，过滤后的煤焦油可以达到催化加氢制取汽油、柴油的要求。
After the filtration separation, the solid matter in the coal tar was greatly reduced. The filtrated coal tar can meet the demand of being turned into the gasolene and the diesel oil.
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