IMPROVED DRYING PROCESS FOR FLUE GAS TREATMENT

摘要

An apparatus and method for drying a moist gas is provided. The apparatus includes a revolving desiccant rotor with at least an adsorption sector and a regeneration chamber; the regeneration chamber comprising at least a first dry gas sector, a hot regeneration sector, and a second dry gas sector, and optionally a cold regeneration sector. The method includes at least an adsorption sector and a regeneration chamber; the regeneration chamber comprising at least a first dry gas sector, a hot regeneration sector, and a second dry gas sector, and optionally a cold regeneration sector. This method includes the steps of; contacting a moist gas stream (401) with the desiccant in the adsorption sector, thereby producing a dry gas stream (402); contacting a first dry gas stream (407) with the desiccant in the first dry gas sector, thereby producing a first wet gas stream (408); contacting a hot partially wet gas stream (403) with the desiccant in the hot regeneration sector, thereby producing a warm wet gas stream (404); contacting a dry regeneration gas stream with the desiccant in the second dry gas sector, thereby producing a wet regeneration gas stream, and contacting a regeneration purge gas stream (405) with the desiccant in the cold regeneration sector, thereby producing a warm purge gas stream (406).