Method and system for jointly desulfuration, denitration and demercuration by activated coke of moving bed
2012
The invention dislocates a method and a system for jointly desulfuration denitration and demercuration by activated coke of a moving bed. The method comprises the following steps of: S1, adding activated coke to a desulfuration demercuration reactor and a denitration demercuration reactor respectively, carrying out desulfuration, denitration and demercuration on smoke, and respectively measuring the SO2 and NOx concentrations and the smoke flow at a smoke inlet; S2, calculating the mass flow of the activated coke required for realizing the target desulfuration and denitration efficiency, and adjusting the real-time mass flow of the flowed and reacted activated coke; S3, sieving out the dust attached by the reacted activated coke and the carbon power generated by self-abrasion; S4, charging the sieved activated coke into an activated coke regenerating reactor to be reacted to obtain regenerated activated coke; and S5, adding the regenerated activated coke into the desulfuration demercuration reactor and the denitration demercuration reactor respectively, and carrying out the circulation of desulfuration, denitration and demercuration. The method can be used for timely adjusting the inflow and outflow mass flow of the activated coke of the desulfuration demercuration reactor and the denitration demercuration reactor, and removing mercury in the smoke.
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