文章基本信息

标题：Viscosity evaluation of the mixture of coal tars from collection main and primary cooler on the base of rheometer measurements and empirical formulas
本地全文：下载
作者：Alexander Pasternak ; Leonid Bannikov ; Anna Smirnova 等
期刊名称：Eastern-European Journal of Enterprise Technologies
印刷版ISSN：1729-3774
电子版ISSN：1729-4061
出版年度：2016
卷号：4
期号：1
页码：17-23
DOI：10.15587/1729-4061.2016.75736
语种：English
出版社：PC Technology Center
摘要：Viscosity of heavy and light coal tars from the coking process of coal blends with a decreasing portion of Ukrainian coal was measured. In addition, measurement of viscosity of mixtures of coal tar was carried out. Concentration of mixture met the standards of the regulations of the washing liquids for gas space of primary cooler. The temperature dependence of the viscosity of the tar mixture was evaluated according to some empirical equations. In particular, the equations have been used considering deviations from the ideal state. The viscosity of the individual samples of heavy and light tars was not appropriately investigated. This also applies to the temperature dependence. This is common practice for coal tar viscosity measurements in Engler units. Also, there are no empirical relationships; we cannot predict the viscosity of the tar when mixed, as we do for the petroleum oil matter. Anomalous decline in viscosity with the addition of 5–20 % light tar that corresponded to the minimum activation energy of viscous flow was revealed experimentally.
关键词：mixture viscosity;empirical relationship;coal tar;gas collecting main;primary cooler