| 摘要 |
<p>PURPOSE:To prevent the formation and growth of deposits in a countercurrent- type absorption column by a method wherein a means for spraying water to a joint part between a gas inlet pipe and the absorption column is provided at the inlet pipe so that a gas is cooled and humidified and a water flow is formed on the wall surface of the pipe. CONSTITUTION:A water pipe 5 is fitted at a circumferential part of the gas inlet pipe 2, and water is sprayed from spray nozzles 6 to the adsorption column 1 side along the wall surface of the gas inlet pipe 2. A throttled part 9 is provided at the boundary between the inlet pipe 2 and the column 1. Accordingly, a deposit-containing liquid A flowing downward along a wall surface 1' and tending to enter the inlet pipe 2 is pushed back at the throttled part 9 by the accelerated flows of water and the gas and cannot enter the inlet pipe 2, while the gas is humidified and cooled, so that the deposit-containing liquid is pre- vented from evaporating.</p> |
