Sun Paper Yanzhou mill - NOx scrubber for recovery boiler
Jul 1, 2019
To meet the new, very tight NOx emission limits for its recovery boilers, Sun Paper turned to Valmet. The NOx scrubber for recovery boilers, the first in the world, has performed even better than originally expected.
The De-SOx-NOx process has worked successfully during the recovery boiler operation. We are happy to recommend Valmet for this kind of project, and we are already taking the same technology into use in two more recovery boilers.
Hongjin Liang, Mill Manager of the Yanzhou Kraft Pulp Mill from Sun Paper
Summary
Location
Shandong Sun Paper, Yanzhou mill, Shandong Province, China
Customer challenge
Strict emission limits for recovery boiler SOx and NOx emissions. NOx limit about half of the level that can be reached with advanced combustion technologies. Sun Paper is committed to using latest technologies and minimizing its environmental impact.
Solution
NOx scrubber using chlorine dioxide (ClO2) as the oxidizing agent
Benefits
Compact solution developed for the customer needs
Fast project delivery and on-time start-up
Low emission levels with De NOx efficiency up to 90%
Key words
Air emission control, NOx scrubber, De-NOx, Recovery boiler, China
