Sut i Ddewis Offer Dadnitreiddio

The selection of denitrification equipment requires comprehensive consideration of flue gas characteristics, emission standards, and economic efficiency. High-temperature flue gas (850~1100℃) is suitable for SNCR technology, with an efficiency of 30%~70% and lower cost (1/3~1/2 of SCR). Medium-temperature flue gas (300~450℃) is recommended for SCR technology, with an efficiency >90%, suitable for ultra-low emission requirements (NOx≤50mg/m³). Low-temperature flue gas (50~300℃) can use low-temperature SCR or PNCR technology, with an efficiency of 85%~95% and no risk of ammonia escape. High-sulfur flue gas (SO₂>500mg/m³) is recommended to use PNCR or sulfur-resistant SCR catalysts. For high-dust environments (>20g/m³), argymhellir pigiad powdr sych PNCR neu SCR gyda glanhau huddygl ultrasonic. Mae allyriadau isel iawn-(NOx Llai na neu’n hafal i 30 mg/m³) angen AAD neu gyfuniad o dechnolegau, tra gellir cyflawni allyriadau canolig (NOx Llai na neu’n hafal i 200 mg/m³) gyda SNCR neu PNCR, sydd 40%–50% yn rhatach nag AAD. O ran economeg, mae gan SNCR y buddsoddiad cychwynnol isaf (tua 200,000-350,000 RMB ar gyfer boeler 10 t/h), tra bod gan AAD gostau gweithredu uwch (gall costau cynnal a chadw blynyddol gyrraedd 14 miliwn RMB), a dim ond 2,000-3,000 RMB / tunnell yw costau adweithydd PNCR. SNCR/PNCR yw'r dewis a ffefrir ar gyfer prosiectau bach a chanolig, gyda chyfanswm costau cylch bywyd 40%-70% yn is nag AAD.