Additive for denitration of smoke SNCR (selective non-catalytic reduction) and application thereof
An additive and denitrification technology, which is applied in the field of flue gas SNCR denitrification, can solve the problems of shutdown, limited application, poor operation stability, etc., achieve the expansion of effective denitrification temperature range, improve utilization rate, and reduce the generation of by-product N2O Effect
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Embodiment 1
[0040] The flue gas temperature is 760°C, the reducing agent is ammonia water (5% mass concentration), and the NSR is 1.2. The additive content and measurement results are shown in Table 1
[0041] Table 1 The ratio of additives and denitrification situation
[0042]
[0043] Among them, the cellulose ether is hydroxymethyl cellulose, and the inorganic sodium salt is NaHCO 3 .
Embodiment 2
[0045] The flue gas temperature is 800°C, the reducing agent is ammonia water (5% mass concentration), and the NSR is 1.2. The additive content and measurement results are shown in Table 2
[0046] Table 2 The ratio of additives and the denitrification situation
[0047]
[0048] Among them, the cellulose ether is hydroxyethyl cellulose, and the inorganic sodium salt is Na 2 CO 3 .
Embodiment 3
[0050] The flue gas temperature is 850°C, the reducing agent is ammonia water (5% mass concentration), and the NSR is 1.2. The additive content and measurement results are shown in Table 3
[0051] Table 3 The ratio of additives and denitrification situation
[0052]
[0053] Among them, the cellulose ether is hydroxypropyl cellulose, and the inorganic sodium salt is NaCl.
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