Kinetic Study and Modeling of Nigerian Sub Bituminous Coal Char Using the Random Pore Technique

Inorder to augment for the short supply of energy industrial purposes, kinetics carbon-dioxide gasification two Nigerian sub bituminous coal chars was studied in this work using a thermogravimetric analyser (TGA). This paper, reports findings on typical Enugu (Udi) and Kogi (Okaba) Nigeria carbon dioxide medium at atmospheric pressure. Proximate ultimate analysis performed samples based their origin determine properties values. Result shows that Udi has higher heating value as compared Okaba coal. The effect temperature ranging from 900oC 1000oC different concentration 100%, 70% 40% pressure studied. process involves pyrolysis char gasification. It found reactivity increased with increase rate, which demonstrate A random pore model approach novel kinetic scheme used describe behaviour char. simulated predictive result observed experimental result, were good agreement. Based obtained it rate conversion increases over time, vice versa. activation vary depending be 97.58kJ/mol 103kJ/mol respectively. Products will serve promising fuel alternative.