Effect of ammonia injection on black liquor recovery boiler NOx emissions and ash chemistry

Margareta Lundberg*, Piia Niemi, Luc Maîtrejean, Patrik Yrjas, Tor Laurén, Anders Brink, Mikko Hupa

*Korresponderande författare för detta arbete

Forskningsoutput: Kapitel i bok/konferenshandlingKonferensbidragVetenskapligPeer review

1 Citeringar (Scopus)

Sammanfattning

Selective Non-Catalytic NOx reduction based on ammonia injection has been tested in a 2000 tds/d recovery boiler. The results showed good reduction rates with limited ammonia slip over the load range 60-100%. For the other emissions, ammonia addition had no or minor impact. Special attention was paid to the ash chemistry to evaluate the potential for ammonium salt formation on the heating surfaces. Analyses of deposit samples together with thermodynamic equilibrium calculations show that this potential is limited and will not affect the deposit characteristics.

OriginalspråkEngelska
Titel på gästpublikationTAPPI Press - Engineering, Pulping and Environmental Conference 2008
Sidor1437-1458
Antal sidor22
StatusPublicerad - 2008
MoE-publikationstypA4 Artikel i en konferenspublikation
EvenemangEngineering, Pulping and Environmental Conference 2008, TAPPI - Portland, OR, USA
Varaktighet: 24 aug 200827 aug 2008

Publikationsserier

NamnTAPPI Press - Engineering, Pulping and Environmental Conference 2008
Volym2

Konferens

KonferensEngineering, Pulping and Environmental Conference 2008, TAPPI
Land/TerritoriumUSA
OrtPortland, OR
Period24/08/0827/08/08

Nyckelord

  • Ammonia, NOx, emissions

Fingeravtryck

Fördjupa i forskningsämnen för ”Effect of ammonia injection on black liquor recovery boiler NO<sub>x</sub> emissions and ash chemistry”. Tillsammans bildar de ett unikt fingeravtryck.

Citera det här