Abstract
ABSTRACTThis article studied pyrolysis characteristics and kinetics of upgraded Yi’an gas coal by low temperature pyrolysis in N2 atmosphere. The quality of coal before and after modification was examined by thermogravimetric analysis. The pyrolysis of the coal becomes violent in the middle temperature range and is calculated to be a third-order reaction. After upgrading, total weight losses and coal caking properties of different temperatures increase and 250°C is the best upgrading temperature.
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