Comprehensive recovery device and recovery process for AES tail gas absorption liquid

The invention discloses an AES tail gas absorption liquid comprehensive recovery device and a recovery process, the AES tail gas absorption liquid comprehensive recovery device comprises an alkaline washing tower and an AES neutralization system liquid phase inlet, the alkaline washing tower is provided with a sulfonated tail gas inlet, a sulfonated tail gas emptying port and an alkaline washing liquid outlet, the alkaline washing liquid outlet is connected with the AES neutralization system liquid phase inlet, and the sulfonated tail gas emptying port is connected with the AES neutralization system liquid phase inlet. An alkaline washing circulating liquid distributor is arranged at the upper part of the alkaline washing tower, and a hot air distributor is arranged at the lower part of the alkaline washing tower. According to the method, hot air obtained after original sulfonation waste heat is recycled is used for treating the alkali wash liquor, the content of sulfite impurities in the original alkali wash