The invention discloses equipment and a method for dry
flue gas desulfurization based on a
simulated moving bed, an adsorption
tower and a regeneration double-
tower process of traditional dry
flue gas desulfurization are combined into a single module unit adsorption regeneration
tower process, the tower is composed of a plurality of module units with the same function, and the module units are similar in structure, are arranged in parallel and are mutually independent. And a
program control valve group is adopted for orderly switching the working process, so that efficient
coupling among the multi-module units, the heating medium circulating
system, the
refrigerant circulating
system and the carrier gas injection
system in the tower is realized, and a continuously matched adsorption regeneration process among the multi-module units is realized. The process trend of a
gas phase is periodically changed through a
program control valve group, meanwhile, an adsorbent is kept still in situ, the effect of simulating a
moving bed by a
fixed bed is achieved, the
solid adsorbent in the whole process is free of dynamic transfer and abrasion, the
fixed bed can keep a good filling state, the
gas phase is uniformly distributed in a
bed layer, and the product quality is stable; and large handling capacity and automatic operation can be conveniently realized.