| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a waste plastic-derived fuel which does not cause pollution even when used as a solid fuel, etc., by heating a waste plastic, removing a gas formed by thermal decomposition, and quenching the resultant high-temp. fuel to further remove the remaining hydrogen chloride. SOLUTION: From the high-temp. fuel in which gases such as hydrogen chloride and a chlorine gas (hereunder referred to simply as hydrogen chloride) formed by thermal decomposition are removed, the remaining hydrogen chloride is further removed. The quenching of the resultant fuel is carried out by putting it into water. The quenching may be carried out at a very low temp. (-80 deg.C) by using liq. nitrogen, etc., in addition to water; however, the use of water, esp. water at normal temp. (water at about 30 deg.C may also will do), is the most economical and safe. A dechlorination apparatus 19 comprises a water vessel 20 and an airtight chamber 23 which is formed thereabove and has a charging port 15a for the high-temp. fuel 18, a supply port 21 for an inert gas, and an exhaust gas port 22.</p> |
