کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9674217 | 1453200 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of gas-liquid reaction between NO and Co(NH3)62+
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Kinetics of gas-liquid reaction between NO and Co(NH3)62+ Kinetics of gas-liquid reaction between NO and Co(NH3)62+](/preview/png/9674217.png)
چکیده انگلیسی
Wet ammonia desulphurization process can be retrofitted for combined removal of SO2 and NO from the flue gas by adding soluble cobalt(II) salts into the aqueous ammonia solutions. The Co(NH3)62+ formed by ammonia binding with Co2+ is the active constituent of scrubbing NO from the flue gas streams. A stirred vessel with a plane gas-liquid interface was used to measure the chemical absorption rates of nitric oxide into the Co(NH3)62+ solution under anaerobic and aerobic conditions separately. The experiments manifest that the nitric oxide absorption reaction can be regarded as instantaneous when nitric oxide concentration levels are parts per million ranges. The gas-liquid reaction becomes gas film controlling as Co(NH3)62+ concentration exceeds 0.02 mol/l. The NO absorption rate is proportional to the nitric oxide inlet concentration. Oxygen in the gas phase is favorable to the absorption of nitric oxide. But it is of little significance to increase the oxygen concentration above 5.2%. The NO absorption rate decreases with temperature. The kinetic equation of NO absorption into the Co(NH3)62+ solution under aerobic condition can be written asNNO=KNO,Gk4K1pNO+γCCo(NH3)62+,LCCo(NH3)62+,L2pO2kâ3+k4K1CCo(NH3)62+,L2pO2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 123, Issues 1â3, 31 August 2005, Pages 210-216
Journal: Journal of Hazardous Materials - Volume 123, Issues 1â3, 31 August 2005, Pages 210-216
نویسندگان
Xiang-li Long, Wen-De Xiao, Wei-kang Yuan,