A METHOD FOR REGENERATING SCR CATALYST

摘要

PURPOSE: A method for regenerating a selective catalytic reduction(SCR) catalyst is provided to prevent the damage of the catalyst by omitting the external discharge of waste SCR catalyst. CONSTITUTION: A waste SCR catalyst is drawn after an SCR process. A washing agent is sprayed to the drawn catalyst. Water is supplied to the catalyst to which the washing agent is sprayed. Steam is supplied to the washed catalyst, and a dehydrating process is followed. The washed catalyst is dried. A catalyst activator immerses the dried catalyst. The washing agent is non-chelate organic acid or chelate organic acid. The washing process and the dehydrating process are capable of being repeated.