METHOD FOR DEWATERING WATER-CONTAINING COAL

摘要

A method for dewatering a water-containing coal which comprises heating the water-containing coal to a temperature of 100 to 350°C under a pressure not less than a saturated stem pressure at the temperature for the heating and applying a shearing force of 0.01 to 20 MPa to the coal, in a sealed chamber. The method is novel and allows the production of a dewatered coal which is inhibited in the re-absorption of water after dewatering and also in the absorption of oxygen after dewatering.