Analysis of the Reaction Conditions in the NOx Reduction Process by Carbon with a View to Achieve High NOx Conversions. Residence Time Conside
详细信息 查看全文
- 作者：Agustí ; n Bueno-Ló ; pez ; José ; Antonio Caballero ; and Avelina Garcí ; a-Garcí ; a
- 刊名：Energy & Fuels
- 出版年：2002
- 出版时间：November 2002
- 年：2002
- 卷：16
- 期：6
- 页码：1425 - 1428
- 全文大小：94K
- 年卷期：v.16,no.6(November 2002)
- ISSN：1520-5029
文摘
In this work the activity of potassium-containing coal-pellets against NOx at 450
C was studied.The sample chosen presents high potassium content, 16.8% in wt, and was prepared from a humicacid+KOH mixture and a Spanish high volatile A bituminous coal. The effect of the NOx partialpressure, combined with that of the influence of the residence time as variables for the NOxreduction process were investigated in order to look for reaction conditions where high NOxconversions be reached and maintained during a long time. 100% of NOx conversion was reachedand kept during a long time, employing a sample mass of 2 grams (residence time 1.8 s), regardlessof the NOx partial pressure tested. A first reaction order, with respect to NOx partial pressure,was found from the fit of all the data, in agreement with the data reported in the literature. Therate constant estimated at the temperture of study was of 1.15 s-1.
C was studied.The sample chosen presents high potassium content, 16.8% in wt, and was prepared from a humicacid+KOH mixture and a Spanish high volatile A bituminous coal. The effect of the NOx partialpressure, combined with that of the influence of the residence time as variables for the NOxreduction process were investigated in order to look for reaction conditions where high NOxconversions be reached and maintained during a long time. 100% of NOx conversion was reachedand kept during a long time, employing a sample mass of 2 grams (residence time 1.8 s), regardlessof the NOx partial pressure tested. A first reaction order, with respect to NOx partial pressure,was found from the fit of all the data, in agreement with the data reported in the literature. Therate constant estimated at the temperture of study was of 1.15 s-1.