TY - GEN
T1 - Effect of ammonia injection on black liquor recovery boiler NOx emissions and ash chemistry
AU - Lundberg, Margareta
AU - Niemi, Piia
AU - Maîtrejean, Luc
AU - Yrjas, Patrik
AU - Laurén, Tor
AU - Brink, Anders
AU - Hupa, Mikko
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
KW - Ammonia, NOx, emissions
UR - http://www.scopus.com/inward/record.url?scp=65249136066&partnerID=8YFLogxK
M3 - Published conference proceeding
AN - SCOPUS:65249136066
SN - 9781605605081
T3 - TAPPI Press - Engineering, Pulping and Environmental Conference 2008
SP - 1437
EP - 1458
BT - TAPPI Press - Engineering, Pulping and Environmental Conference 2008
T2 - Engineering, Pulping and Environmental Conference 2008, TAPPI
Y2 - 24 August 2008 through 27 August 2008
ER -