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
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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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 CO2â¯>â¯NOâ¯>â¯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 850â¯Â°C to 1050â¯Â°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 (850-975â¯Â°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 900-970â¯Â°C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 224, 15 July 2018, Pages 235-240
Journal: Fuel - Volume 224, 15 July 2018, Pages 235-240
نویسندگان
Sen Li, Yifei Ge, Xiaolin Wei,