The volatile matter of non-coking coal was used for the reduction of hematite in argon atmosphere at nonisothermal condition. A thermal gravimeter furnace enable to use an 80 mm-height crucible was designed for the experiments to measure the weight changes of about 10 grams samples. A two-layered array of coal and alumina and four-layered array of iron oxide, alumina, coal and alumina was u...

One of the most important methods to produce sponge iron is coal based reduction of iron ore. Direct reduction methods based on coal are being improved due to the abundance of coal sources and its lower cost in comparison with natural gas. Volatile materials in coal play an important role in the reduction of iron oxides. In this study, noncoking coal with high volatile materials from Iran and c...

Abstract The present work aims at studying five Indian coals and their solvent extracted clean coal products using Py-GCMS analysis correlating the characterization data theoretical principal component analysis. pyrolysis of original super were classified as mono-, di- tri-aromatics, while other prominent that obtained included cycloalkanes, n -alkanes, alkenes ranging from C 10 –C 29 . is a di...

Recently, the environment has indicated an increase in price of coking coal. Thus, order to produce high strength coke at a low production cost, application blending technology various types coal is required. Coal dilatation important factor determining strength. It well known that dilation values blended containing semi-soft coals does not match with weighted average value and coal; it denotes...

To improve indirect drying efficiency, the effect of soda residue on characteristics coking coal were studied using a self-made system. A tube furnace was used in dry distillation samples with residue, and coke properties analyzed. The results indicated that has significant influence increase heating rate temperature distribution range 90 to 110 °C. With addition 2%, 5%, 10% rates increased by ...