PURPOSE: To simplify a system by reducing the flow amount of regeneration gas and reducing the capacities of a rare gas hold-up apparatus and a dehumidification apparatus, by bringing a dehumidification tower to a direct heating system and returning gas after regeneration to the waste gas line of an apparatus inlet.
CONSTITUTION: The waste gas 1 of an atomic power plant is passed through a cooler 2 and a dehumidifier 4 to preliminarily remove hygroscopic moisture and dehumidified in a dehumidication tower 8 to be sent to a rare gas hold-up apparatus 20. A dehumidification tower 12 is heated by a heater 9 to desorb adsorbed hygroscopic moisture and this desorbed hygroscopic moisture is exhausted by a small flow amount of regeneration gas 19 to be returned to the line of waste gas 1 of the apparatus inlet through a valve 17 and sent to the cooler 2 and the dehumidifier 4 along with the waste gas to preliminarily remove hygroscopic moisture while the dehumidified gas is further dehumidified by the dehumidification tower 8 to be sent to the rare gas hold-up apparatus 20. By this method, a regeneration gas cooler and the dehumidifier can be used in common in the waste gas side.
KOBANA KAZUHARU
MINEMOTO MASAKI
FUNAKOSHI TOSHIO
UEJIMA NAOYUKI
| JPS5252266A | 1977-04-26 | |||
| JPS59136118A | 1984-08-04 |