Method and device for simultaneous desulphurization and denitration by flue gas-seawater method

Method and device for simultaneous desulphurization and denitration by flue gas-seawater method

  • CN 101,721,898 B
  • Filed: 10/17/2008
  • Issued: 04/08/2015
  • Est. Priority Date: 10/17/2008
  • Status: Active Grant
First Claim
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1. a flue gas-seawater method simultaneous SO_2 and NO removal method, is characterized in that, it comprises the steps:

  • A), seawater catalytic laundry flue gas;

    with seawater to containing SO 2and the flue gas of NOx carries out catalytic laundry, to remove the SO in flue gas 2and NOx, then discharge the purifying smoke through desulphurization denitration and the acid seawater of discharging washing process formation;

    Described catalytic laundry, it is the iron catalytic laundry that the seawater that is added with a certain amount of iron ion carries out, adding method in acid seawater, arranges ferrite members or/and make the ferrous material of contact seawater become sacrificial anode to add iron ion, or/and make seawater or/and flue gas through magnetic flux density be the magnetic catalytic laundry of 1 ~ 6000 Gauss'"'"'s complementary field;

    B), acid seawater quality recovers;

    mix seawater to the acid seawater of discharging in described step A and carry out acid-base neutralization and blast air, the quality recovery of acid seawater is discharged after meeting environmental requirement.

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