Možnosti využití alternativních příměsí při vysokoteplotní karbonizaci uhlí a jejich vliv na kvalitu vysokopecního koksu

Abstract

The theoretical part of this thesis presents the main qualitative parameters of coking coal and blast furnace coke. It describes which properties of coal are characterized by individual quality parameters and what effect these properties have on coke formation and its quality. A significant part is also devoted to the properties related to oven wall pressure. The impact of coke quality parameters on its consumption in the blast furnace and the efficiency of the blast furnace process is assessed. Using a pilot coke oven, a possibility of replace part of the coking coal in the blend with some less traditional material was explored. In several series of tests in the pilot oven, the influence and impact of using petroleum coke, coke dust, steam coal and lignite in the coal blend were investigated. The results presented herein provide a detailed assessment of the extent to which the addition of these materials affects the properties of the coal blend and the final coke quality.