Method for reducing carbon dioxide at kiln tail of cement kiln through adsorption method

The invention relates to the field of flue gas treatment, and discloses a method for reducing carbon dioxide at the tail of a cement kiln by an adsorption method, which comprises the steps of fixed bed reactor filling, tail gas impurity removal, high-temperature adsorption emission reduction treatment, desorption recovery treatment and the like. Compared with the prior art, the method for adsorbing and reducing emission of carbon dioxide has the advantages of easiness in treatment, no solvent loss, low energy consumption, small environmental pollution, relatively simple process, relatively low operation cost and the like. Particularly for the high-temperature carbon dioxide adsorbent adopted by the invention, high-temperature gas does not need to be cooled, and the high-temperature solid adsorbent is used for directly adsorbing carbon dioxide, so that a large amount of energy loss can be avoided, resources are saved, and the cost is reduced; the adsorbent used in the invention has the advantages of large adso