Abstract
A new production method from waste plastics to high quality solid fuel has proposed in order to overcome the disadvantage in thermal utilization of waste plastics such as low bulk density, difficult handling. The concept proposed lies in the prevention of a massive waste plastic and the adhesion to the equipment inner wall by the addition of an inexpensive material. Through examination of several combinations with waste plastics and additives, it was found that fine carbon material was suitable additive to form a granular solid without fusion and massive. Thus prepared granular solid had excellent properties; easy burning, easy grindability, and safety handling. In addition, it was confirmed that the proposed method realized high thermal recovery efficiency more than 90% from the calculation of energy balance. From these results it was clarified that the proposed method will be an efficient utilization way to utilize waste plastics as a high quality fuel solid feedstock for present commercial plants such as pulverized coal burner.
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