Method for online adsorbent replacement of adsorption tower

The invention discloses a method for online adsorbent replacement of an adsorption tower. The method comprises the following steps: cutting the adsorption tower out of a system; replacing nitrogen to normal pressure; removing a top large flange cover; dismounting an inlet short section and an outlet elbow, additionally arranging a blind plate with a guide leaching function, additionally arranging a blind plate on the tower side, and additionally arranging a blind plate on a top outlet pipeline flange; detaching and cutting off a splitter plate, a pressing plate, a silk screen and a pattern plate; fixing a sealing steel plate false piece, and enabling an aluminum pipe to be connected with a rubber pipe; opening a nitrogen valve and tower bottom guide spraying, and controlling a pressure adsorbent to enter a recovery device through the aluminum pipe and the rubber pipe; detaching a top false part, detaching a bottom guide shower, additionally arranging a blind plate, and introducing air for replacement; stoppin