Selective non-catalytic reduction (SNCR)

Selective non-catalytic reduction (SNCR)

SNCR denitration technology is to spray NHx-based reducing agent (liquid ammonia, ammonia water, urea) into the furnace temperature range of 800 ~ 1100 ℃, the reducing agent is quickly thermally decomposed into NH3 and react with NOx in flue gas to generate N2 and H2O ; The process uses the furnace as the reactor, which can be achieved by slightly modifying the boiler.

Features

    • No catalyst is required, the project cost is greatly reduced, and the operating cost is also low;
    • is completely arranged on the boiler body, with a small footprint;.
    • Low denitration efficiency, generally between 30% and 70%; It is difficult to control the reaction temperature and residence time.