Design of porous wall air coupling with air staged furnace for preventing high temperature corrosion and reducing NOx emissions

[Display omitted] •The problems of air staged are reviewed.•Porous wall air coupling with air staged combustion furnace is manufactured.•Highly efficient combustion and low NOx emissions are realized simultaneously.•High temperature corrosion and slagging are prevented. Air staged technology can rem...

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Bibliographic Details
Published in:Applied thermal engineering 2017-09, Vol.124, p.865-870
Main Authors: Ma, Honghe, Zhou, Lu, Ma, Suxia, Du, Huijuan
Format: Article
Language:English
Subjects:
Air staged
Coal
Combustion
Combustion efficiency
Corrosion
Corrosion effects
Corrosion prevention
Coupling
Emissions
High temperature
High temperature corrosion
Nitrogen oxides
NOx emission
Porous wall air
Pulverized coal
Pulverized coal furnace design
Slagging
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Summary:[Display omitted] •The problems of air staged are reviewed.•Porous wall air coupling with air staged combustion furnace is manufactured.•Highly efficient combustion and low NOx emissions are realized simultaneously.•High temperature corrosion and slagging are prevented. Air staged technology can remarkably reduce NOx emissions during pulverized coal combustion. However, it also may result in the negative impacts of high temperature corrosion, slagging, and high imperfect combustion loss. The porous wall air coupling with air staged (PW&AS) furnace is designed and manufactured to overcome these problems. The preliminary experimental results show that PW&AS furnace could effect a simultaneous realization of prevention of high temperature corrosion, high combustion efficiency, and low NOx emissions.
ISSN:1359-4311
1873-5606
DOI:10.1016/j.applthermaleng.2017.06.029