| 摘要 |
The subject of the invention is improving physical and chemical properties in solid fuels obtained in that process. The core of this invention is the method of improving physical and chemical properties in solid fuels especially those made from brown coal or biomass obtained like wood waste, wood chips and other biomass originated materials and also sewage sludge featured by processing them after a bath in hot vegetable, animal or mineral oil. Oil from saturated coal can be reclaimed by pressing, using vibropress or by centrifugal separation. It is important to note that water evaporation heat is recovered with heat exchangers and by relieving volatile substance from coal hydrogenated oil is obtained. This invention allows for obtaining fuel of high-heat value and also hydrogenated oil is formed. Fuel can be used as substitute for high-heat value hard coal and in some cases also for coke. |
