Analysis of Chemical Reaction Kinetics Behavior of Nitrogen Oxide During Air-staged Combustion in Pulverized Boiler

Bulletin of Chemical Reaction Engineering & Catalysis. 2016;11(1):100-108 DOI 10.9767/bcrec.11.1.431.100-108

 

Journal Homepage

Journal Title: Bulletin of Chemical Reaction Engineering & Catalysis

ISSN: 1978-2993 (Print)

Publisher: Diponegoro University

Society/Institution: Indonesian Catalyst Society (Masyarakat Katalis Indonesia)

LCC Subject Category: Technology: Chemical technology: Chemical engineering

Country of publisher: Indonesia

Language of fulltext: Indonesian, English

Full-text formats available: PDF

 

AUTHORS

Jun-Xia Zhang (School of Energy Engineering, Yulin University, Yulin City, Shanxi Province 719000)
Jiang Feng Zhang (Northwest Electric Power Construction Company, Xian City, Shanxi Province, 710032)

EDITORIAL INFORMATION

Blind peer review

Editorial Board

Instructions for authors

Time From Submission to Publication: 12 weeks

 

Abstract | Full Text

Because the air-staged combustion technology is one of the key technologies with low investment running costs and high emission reduction efficiency for the pulverized boiler, it is important to reveal the chemical reaction kinetics mechanism for developing various technologies of nitrogen oxide reduction emissions. At the present work, a three-dimensional mesh model of the large-scale four corner tangentially fired boiler furnace is established with the GAMBIT pre-processing of the FLUENT software. The partial turbulent premixed and diffusion flame was simulated for the air-staged combustion processing. Parameters distributions for the air-staged and no the air-staged were obtained, including in-furnace flow field, temperature field and nitrogen oxide concentration field. The results show that the air-staged has more regular velocity field, higher velocity of flue gas, higher turbulence intensity and more uniform temperature of flue gas. In addition, a lower negative pressure zone and lower O2 concentration zone is formed in the main combustion zone, which is conducive to the NO of fuel type reduced to N2, enhanced the effect of NOx reduction. Copyright © 2016 BCREC GROUP. All rights reserved Received: 5th November 2015; Revised: 14th January 2016; Accepted: 16th January 2016  How to Cite: Zhang, J.X., Zhang, J.F. (2016). Analysis of Chemical Reaction Kinetics Behavior of Nitrogen Oxide During Air-staged Combustion in Pulverized Boiler. Bulletin of Chemical Reaction Engineering & Catalysis, 11 (1): 100-108. (doi:10.9767/bcrec.11.1.431.100-108) Permalink/DOI: http://dx.doi.org/10.9767/bcrec.11.1.431.100-108