Abstract:

In combination with actual operation conditions of 4 sets of CDQ systems which have representativeness domestically, the CDQ systems are studied from the aspects of measuring method and means, energy utilization efficiency, comprehensive evaluation of the systems and so on. When coke moisture content is reduced by about 4%, M40 is raised by 3%~4% and M10 is lowered by 1%; when the hot state property is raised, reactivity index is reduced by 5% and coke strength after reaction is enhanced by about 5%. In comparison with wet quenched coke, the true density of dry quenched coke has increased slightly, the anisotropic degree in coke optical contexture is strengthened, the anisotropic index is raised by 1.1% in average and porosity is lowered by 7.8%. The technology developing direction of domestic CDQ system and role and position of CDQ technology in energy-saving and discharge reduction are discussed.