THE EFFECT OF BINDER ADDITION ON THE QUALITY AND CARBON STRUCTURE OF METALLURGICAL COKE USING NON-COKING COAL

• Main Author: Patrix, Ferry
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/54436
• Institution: Institut Teknologi Bandung

This research was conducted to obtain a substitute for blast furnace coke from a mixture of non-coking coal and binder with different ratios. The coke products were made with high pressure briquetting process and then carbonized at 900 and 1000 °C. The effect of binder addition and carbonization temperature on the quality and carbon structure of the products were investigated. The results showed that higher binder ratio and carbonization temperature decreased the yield and increased the compressive strength of the products. The bulk density tends to decreased as the binder ratio increased, however, the bulk density of products carbonized at 1000 °C were greater than those carbonized at 900 °C. SEM images showed an irregular surface with cracks and fissures. The pores appeared smaller and shallower compared to blast furnace coke. The graphitic structure of the products increased as the carbonization temperature increased, but still had poorer degree of graphitization compared to blast furnace coke. Binder ratios did not significantly influence changes in carbon structural parameters.