Abstract
Three-dimensional flow simulation was applied to analyze the high solids firing processes in a 3 150 tds/d recovery boiler. The flow field, combustion, heat transfer, and the concentration of nitric oxide (NO) were modeled with the commercial Fluent/UNS code using strong local refinement of the computational grid. For prediction of nitric oxide (NO) emissions a postprocessing technique was used. Different simplified ammonia oxidation mechanisms available were tested. The study shows that this kind of modeling can be successfully applied to a 3 150 tds/d recovery boiler. In addition, the possibilities to reduce the NOx emission by odorous gas firing (reburning) in the recovery boiler furnace are discussed based on one-dimensional calculations.
Original language | English |
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Title of host publication | 1998 International Chemical Recovery Conference |
Place of Publication | Atlanta |
Publisher | TAPPI Press |
Pages | 245-256 |
ISBN (Print) | 978-0-89852-716-2 |
Publication status | Published - 1998 |
MoE publication type | B3 Non-refereed article in conference proceedings |
Event | 1998 TAPPI International Chemical Recovery Conference - Tampa, United States Duration: 1 Jun 1998 → 4 Jun 1998 |
Conference
Conference | 1998 TAPPI International Chemical Recovery Conference |
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Country/Territory | United States |
City | Tampa |
Period | 1/06/98 → 4/06/98 |