| 摘要 |
<p>PURPOSE:To improve the gas-liquid contact efficiency, the clogging due to solid sticking, the cavitation due to bubbles, and the highly required power by communicating the lower liquid reservoirs of an absorption tower and an oxidation tower, and circulating the absorption liquid through a degassing vessel. CONSTITUTION:The matter to be oxidized in a gas 1 is absorbed and removed in a absorption tower 6, and an absorption liquid is accumulated in a lower liquid reservoir 18. This absorption liquid 3 unoxidized yet flows into a lower liquid reservoir 19 of oxidation tower 7 through a natural communication pipe 9 so that the need of liquid taking-out pump is eliminated. The matter to be oxidized is aerially oxidized by an air-liquid mixing unit 10 in the lower part of the oxidation tower 7, and the required power of an injection pump 14 and blower 15 is lowered because of the low level of liquid surface. Moreover, as the absorption liquid 5 containing bubbles after oxidation is subjected to the ari-liquid separation in a degassing vessel 8, a taking-out pump 16 is prevented from cavitation. A gase out phase oxidation system is modified into this system with low cost, and the gas-liquid contact efficiency and the solid sticking problem, etc., are improved.</p> |
