Abstract:
The quality of the metallurgical coke is essential for a better performance in the Blast Furnace (acting as a fuel, reducing agent and permeable support), in addition to provide stability for the operation. In this way, several methods and models of quality prediction are being developed to assist in the production of coke with the desired quality. One of the tools available for this previsions are the pilot coke ovens. It is possible to evaluate the performance of the coal blend and simulate coke production, correlating data from the pilot production and industrial production to create models of coke quality prediction (DI and CSR). Therefore, the objective of the study was to evaluate the use of coals and coal blend in the coking process, as well to compare the quality of the coke obtained in pilot scale with the results in industrial scale. The tests in the pilot oven provided satisfactory results, allowing to evaluate the coals, blending performance, and to obtain results of DI and CSR to predict the coke quality.