Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNOx Process

CIESC Journal ›› 2010, Vol. 18 ›› Issue (1): 143-148.

Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNO_x Process

吴少华, 曹庆喜, 刘辉, 安强, 黄霞

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

收稿日期:2009-01-15 修回日期:2009-09-07 出版日期:2010-02-28 发布日期:2010-12-30
通讯作者: CAO Qingxi, E-mail: caoqx@hit.edu.cn
作者简介:
基金资助:
Supported by the State Key Development Program for Basic Research of China(2006CB200303);the National Natural Science Foundation of China (50706011);the National High Technology Research and Development Program of China(2007AA05Z337)

Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNO_x Process

WU Shaohua, CAO Qingxi, LIU Hui, AN Qiang, HUANG Xia

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Received:2009-01-15 Revised:2009-09-07 Online:2010-02-28 Published:2010-12-30
Supported by:
Supported by the State Key Development Program for Basic Research of China(2006CB200303);the National Natural Science Foundation of China (50706011);the National High Technology Research and Development Program of China(2007AA05Z337)

摘要/Abstract

摘要： An experimental study of thermal DeNO_x process with different additives was performed in an electricityheated tubular flow reactor,showing that CO is less effective to lower the optimum temperature than H₂ and CH₄.The maximum NO reduction is lowered with H₂ added,while it is hardly affected by CO or CH₄.The temperature window is widened appreciably with CH₄ added,while it is narrowed slightly by H₂ or CO.The disadvantage of CH₄ is that it causes CO emission due to its incomplete oxidation,and the maximum conversion of CH₄ to CO is more than 50%.In general,the calculation using a detailed chemical kinetic model predicts most of the process features reasonably well.The analysis on reaction mechanism shows that the effects of these additives on NO reduction are achieved principally by promoting the production of·OH radical.

关键词: NO_x, thermal DeNO_x, additives, kinetic model

Abstract: An experimental study of thermal DeNO_x process with different additives was performed in an electricityheated tubular flow reactor,showing that CO is less effective to lower the optimum temperature than H₂ and CH₄.The maximum NO reduction is lowered with H₂ added,while it is hardly affected by CO or CH₄.The temperature window is widened appreciably with CH₄ added,while it is narrowed slightly by H₂ or CO.The disadvantage of CH₄ is that it causes CO emission due to its incomplete oxidation,and the maximum conversion of CH₄ to CO is more than 50%.In general,the calculation using a detailed chemical kinetic model predicts most of the process features reasonably well.The analysis on reaction mechanism shows that the effects of these additives on NO reduction are achieved principally by promoting the production of·OH radical.

Key words: NO_x, thermal DeNO_x, additives, kinetic model

吴少华, 曹庆喜, 刘辉, 安强, 黄霞. Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNO_x Process[J]. CIESC Journal, 2010, 18(1): 143-148.

WU Shaohua, CAO Qingxi, LIU Hui, AN Qiang, HUANG Xia. Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNO_x Process[J]. , 2010, 18(1): 143-148.

参考文献

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Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNO_x Process

Experimental and Modeling Study of the Effects of Gas Additives on the Thermal DeNO_x Process

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