| 摘要 |
<p>A method for converting a plastic into an oil, which comprises melting a plastic as a raw material in a melting section (31) so as to form an expanded plastic, sending the expanded plastic to a first step decomposition cylinder (47) and, arranged adjacent thereto, a second step decomposition cylinder (48), to thereby depolymerize the plastic to a light secondary decomposition gas, followed by separation, cooling the separated secondary decomposition gas by the use of condensers (37,38) to an oil, followed by recovering in oil storage tanks (42,43). The method can be advantageously employed for completely decomposing a large amount of plastics by heating and also for treating a toxic gas.</p> |
