Variables influyentes en el secado discontinuo del carbón asistido con microondas Influential variables in coal batch microwave drying

This study evaluates the variables effect of particle size, coal type, operating time and microwave power level during the coal dewatering in a batch microwave process. The batch microwave coal drying was obtained at 300 and 500W of power and was compared with the muffle thermal drying at 80°C. The results show that batch microwave drying is able to remove the 50% of the contain moisture within the coal delaying 10% of the required time by muffle technique. Was found that microwave process do not affect Hard Grove Index, the Calorific Value, and the Ash content coal properties.