METHOD FOR RESTORING PERFORMANCE CAPABILITIES OF EXHAUST GAS TREATMENT APPARATUS

摘要

To provide a method for recovering performance of a discharge gas processing apparatus, the method being capable of recovering NO x removal performance of a deteriorated NO x removal catalyst without replacing the deteriorated NO x removal catalyst with a new catalyst and without adding a new catalyst. After a honeycomb catalyst 1 having gas conduits for feeding a gas to be treated has been placed and used in a discharge gas conduit of a discharge gas processing apparatus 10, the honeycomb catalyst 1 is rearranged such that a portion of the honeycomb catalyst 1ۥthe portion being on the upstream side in terms of the flow of the gas to be treated and extending to cover a predetermined range is transferred from the inlet side of the discharge gas conduit.