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Kinetic study of promoted SNCR process by different gas additives

  • Qing Xi Cao*
  • , Hui Liu
  • , Shao Hua Wu
  • , Li Ping Zhao
  • , Xia Huang
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A detailed chemical kinetic model for promoted SNCR process by H 2, CO and CH4 was developed based on recent studies. The model was validated by available experimental data. The influence of H 2, CO and CH4 on SNCR process was investigated by chemical kinetics calculation. The results indicate that H2 is more effective to lower SNCR temperature window than CO and CH4. While the additives concentration is low, CH4 is more effective than CO. But when the molar ratio of additives and initial NO exceeds 3, the effect of CO begins to catch up that of CH4. The promotion mechanisms of them were identified through sensitivity and rate-of-production analysis. The effects of these additives on NO reduction are achieved principally by promoting the production of OH, O and H radicals. Besides the reaction of CH3 radical with NO2 enhances NO reduction at lower temperature when CH4 additive is used.

Original languageEnglish
Title of host publication2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
PublisherIEEE Computer Society
Pages4034-4038
Number of pages5
ISBN (Print)9781424417483
DOIs
StatePublished - 2008
Event2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008 - Shanghai, China
Duration: 16 May 200818 May 2008

Publication series

Name2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008

Conference

Conference2nd International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2008
Country/TerritoryChina
CityShanghai
Period16/05/0818/05/08

Keywords

  • Chemical kinetic model
  • Gas addtives
  • Selective Non-Catalytic Reduction (SNCR)

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