| 摘要 |
<p>PURPOSE:To stabilize the air flow resistance of a dehydrochlorination vessel which removes chlorine contained in the vapor of an oil formed by thermal decomposition and thus prevents poisoning of a catalytic decomposition catalyst in a process for liquefying a chlorine-contg. waste plastic. CONSTITUTION:A waste-plastic liquefaction apparatus comprises a raw material mixing vessel for melting waste plastic, a thermal decomposition vessel for thermally decomposing the resultant melt, a dehydrochlorination vessel for removing chlorine produced in the decomposition vessel from the vapor of an oil formed by the thermal decomposition, and a catalytic decomposition vessel for reforming the vapor provided that an inorg. coarse particle layer having a thickness of 50-100mm and a particle size of 20-40mm is formed at least at the inlet side of the dehydrochlorination vessel and that a CaO layer having a particle size of 2-10mm is formed at the down-stream side of the coarse particle layer.</p> |
