کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6631131 1424940 2018 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experiment on NOx reduction by advanced reburning in cement precalciner
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Experiment on NOx reduction by advanced reburning in cement precalciner
چکیده انگلیسی
Experiment on NOx reduction by advanced reburning in cement precalciner was performed on a laboratory-scale circulating fluidized bed reactor. In reburning zone, the order of the adsorption ability on CaO surface is CO2 > NO > CO, CO2 occupies a large fraction of the active sites to inhibits NO reduction by CO, the decrement of NO reduction rate is about 35% when CO2 increases from 15% to 30%, and the increment of NO reduction rate is about 40% when temperature increases from 850 °C to 1050 °C. In SNCR zone, CO2 concentration has an optimal range (25-27%) due to the competitive adsorption of CO2 and NH3 and the formation of (NH2)2CO on CaO surface, the optimal temperature range becomes narrow (850-975 °C) in comparison with that in utility boiler, the optimal concentration of O2 is in the range of 2% to 3.3%, and NO reduction rate reaches above 75% at 900-970 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 224, 15 July 2018, Pages 235-240
نویسندگان
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