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The process, where brown coal is extruded after mechanical kneading and then allowed to air dry slowly to form a product known as ‘densified coal’, was applied to reduce the moisture content of two Victorian brown coals. NaOH at different concentrations (0–1.5M) was used as an additive in the kneading step. The spontaneous combustion propensity of the densified products was evaluated and compared...
The products obtained by carbonization of a mixture of hydrothermally dewatered acid washed Victorian brown coal and coking coal tar pitch, which had been briquetted at 150 or 230°C and air cured were shown to approach blast furnace (BF) coke in many of their properties. The samples had higher strength than BF coke and showed surface areas and reactivities much closer to those of a typical BF coke...
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