ADSORBENT FOR REMOVING ARSENIC OR PHOSPHORUS FROM FLUE GAS AND FLUE GAS PURIFICATION METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an adsorbent for removing arsenic or phosphorus from flue gas that can be obtained at a low cost by reuse of a used denitration catalyst, and the like, and to provide a flue gas purification method using the adsorbent.SOLUTION: An adsorbent for removing arsenic or phosphorus from flue gas comprises a used denitration catalyst containing titanium oxide and a metal element having a denitration catalytic activity and further containing an iron component having reactivity with an arsenic compound or a phosphorus compound when used for purification treatment of flue gas. A flue gas purification method comprises making flue gas containing arsenic or phosphorus pass through a layer installed with the adsorbent and then pass through a layer installed with a used denitration catalyst.