| 摘要 |
<p>The invention relates to an in situ reproducing method for commercial deactivated SCR catalyst and, more specifically, to an in situ reproducing method for commercial deactivated SCR catalyst having effects such as the prevention of catalyst damage, transportation cost reduction, cost reduction required in attachment/detachment and process time reduction as compared to a method, which detaches a waste catalyst, transfers the waste catalyst to a reproducing facility and processes the waste catalyst, without detaching the waste catalyst from a reaction device by reproducing the waste catalyst on the spot when the activity of a catalyst used in selective catalytic reduction (SCR) for removing nitrogen oxides is lowered. The reproduced catalyst according to the present invention is reused by quickly and easily removing contaminants on the spot and recovering performance more than 95% based on a new catalyst, is economical since the loss of the catalyst is prevented in a reproducing process and reduces environment burden by reusing the waste catalyst. [Reference numerals] (10) Flowmeter control device;(11) Flowmeter;(12) Gas direction control valve;(13) Electric furnace;(14) Reactor;(15) Catalyst;(16) Thermometer;(17) Electric furnace control device;(18) Gas analyzer;(19) Moisture removal device;(20) Gas analyzer;(7) Gas control device;(8) Filter;(9) Flow control device</p> |
