Catalyst Paper Elk Falls Division, located near Campbell River on Vancouver Island, retained the services of Allnorth to design and implement a heat recovery system to reduce both water use and steam consumption in the kraft mill.
The first phase involved reclaiming warm water produced by the R8 ClO2 generator and blending it with fresh mill water used as the cool stream feeding the bleach plant caustic effluent heat exchangers.
The second phase involved reclaiming excess warm water from the recovery evaporator surface condensers to displace fresh water going to the M&D digester blow heat recovery system.
Overall, this project reduced steam consumption by approximately 3.3 kg/s and lowered mill water usage by approximately 60 l/s.
RESPONSIBILITIES
- Project management
- Process engineering
- Mechanical engineering
- Structural engineering
- Piping design
- Capital cost estimate
LOCATION
Elk Falls, BC
