Date of Award
Master of Science
The effects of mineral and maceral composition on Illinois coal gasification were studied by thermogravimetric analysis and semi-batch reactor. Macerals were separated from coal samples. Samples were manipulated to vary their mineral contents and characterized. TGA gasification experiments were conducted at 1000˚C and atmospheric pressure. The kinetics studied of gasification shows that the gasification involves two different mechanisms: the near zero order kinetics followed by Avrami-Erofe'ev mechanism. Correlation of rate constant and maceral and mineral content was analyzed. Semi-batch reactor gasification studies were performed at 800˚C. The gasification products were analyzed at different steam concentration. Correlation of product yield, steam concentration and mineral content was studied.
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