Hybrid regeneration apparatus and method of liquid desiccant for gas dehydration process

摘要

The present invention improves the regeneration method included in the gas-phase moisture removal step using a glycol compound in the liquid-phase drying agent, thereby increasing the purity of regeneration of the liquid-phase drying agent at low temperature by 99.99 wt% A permeation evaporator 200 for separating the water and the first regenerated liquid desiccant from a wet liquid desiccant containing water to minimize loss and prevent the formation of organic acid which is a thermal decomposition product; And a stripping column 300 for stripping moisture from the primary regenerated liquid desiccant using stripping gas to discharge the secondary regenerated liquid desiccant, Or the reboiler regeneration process, and the regeneration facility of the water removal device and the liquid desiccant can be integrally constituted, and the thermal decomposition of the liquid desiccant can be prevented, thereby reducing the loss.