Copyright Pulp & Paper Canada. Reprinted with permission from Annex Business Media.With correctly designed fully-expanded nozzles, the sootblower steam pressure in recov-
ery boilers can be reduced from 300 psig (20 bars) to 150 psig (10 bars), without significantly reducing the deposit removal efficiency. Results of laboratory tests show that a 20% increase in sootblower
steam flow can make a low pressure nozzle (150 psig) more effective than a 300 psig nozzle. Since
low pressure steam can be extracted from downstream of the steam turbine, it is a less expensive
source of steam for use in sootblowingThis work was part of the research program on “Increasing the Throughput and
Reliability of Recovery Boilers and Lime
Kilns” jointly supported by Alstom Power Inc., Andritz Corporation, Aracruz Celulose S.A., Babcock & Wilcox Company,
Boise Paper Solutions, Bowater Canadian
Forest Products Inc., Canfor Inc., Clyde-Bergemann Inc., Daishowa-Marubeni
International Ltd., Domtar Inc., Georgia
Pacific Corporation, International Paper
Company, Irving Pulp & Paper Limited,
Kvaerner Power OY, MeadWestvaco, Stora
Enso Research AB, Tembec Inc., Votorantim Celulose e Papel, and Weyerhaeuser
Company, and by the Natural Sciences and
Engineering Research Council of Canad
