| 摘要 |
<p>PURPOSE:To decrease the pressure drop of a purification apparatus as a whole so as to enable the flue gas treatment to be completed in a short time by providing an absorption column on an bubbling tank, connecting a gas distributor at the bottom of the bubbling tank with the gas inlet of the absorption column by means of a distribution pipe provided with a resistance body, and feeding gases to be treated into the distribution pipe. CONSTITUTION:Gases to be treated leaving a sterilizer 7 is discharged by virtue of their own pressure at the beginning of operation, and when a valve 9 is closed and a valve 8 is opened, the gases pass through a line (a) and then are divided automatically by an orifice 4 as a resistance body, whereby the gases passing through a line (e) flow into a bubbling tank 2 through a gas distributor 3, where ethylene oxide contained in the gases are absorbed into an acid solution 10 to be changed to ethylene glycol, while the gases passing through a line (d) flow into the absorption column 1. The absorption liquid in the bubbling tank 2 is scattered from a liquid distributor 12 by means of a circulation pump 6. When the pressure in the sterilizer 7 has fallen, the valve 8 is closed and the valve 9 is opened to feed the gases to be treated through a line C by operating a vacuum pump 5.</p> |
