Enero Solutions’ Advanced Process Control (APC) solutions optimize continuous digester operations by:
- Implementing advanced control of production rate and H-factor
- Optimizing the liquor-to-wood ratio for efficient chemical usage
- Stabilizing chip level and the cooking zone
- Optimizing free-liquor zones and dilution points
- Controlling blow line consistency to maintain consistent pulp quality dynamically responding to critical production rate changes to improve overall process performance
These solutions improve process stability, maximize chemical efficiency, and increase productivity while reducing variability. Direct integration into the DCS ensures robust implementation and sustainable performance.
An APC approach becomes a strategic lever for optimizing pulp quality, operating performance, and the profitability of continuous digester operations.
Brownstock Washing
In the chemical pulping process, brownstock washing is essential to effectively separate spent cooking liquor from the pulp fibers. Variations in operating conditions and production rates directly affect washing performance, chemical losses, and energy costs, making coordination between washing stages and filtrate management critical to overall process performance.
Enero’ APC solutions optimize brownstock washing by:
- Providing advanced coordination of washing stages and associated control loops
- Dynamically managing filtrate inventories
- Optimizing dilution factor to reduce washing costs
- Identifying and managing production-related process bottlenecks
- Monitoring performance in real time through key performance indicators and dashboards
These solutions improve process stability, reduce chemical losses, and optimize overall washing efficiency. Direct integration into the DCS ensures robust implementation and sustained performance over time.
APC becomes a strategic lever for maximizing operating performance, profitability, and stability throughout the brownstock washing process.
Evaporators
Black liquor evaporation is a critical link between the pulping process and the recovery boiler. Variations in operating conditions directly affect key performance indicators such as steam economy, fouling rate, evaporation capacity, and solids concentration, impacting both energy performance and process stability.
Enero’ APC solutions optimize evaporator performance by:
- Stabilizing operating conditions to reduce fouling
- Optimizing steam usage and heat transfer
- Providing advanced control of black liquor solids concentration
- Increasing evaporation capacity without compromising process stability
- Dynamically managing process constraints and bottlenecks
These solutions improve operating stability, increase energy efficiency, and maximize evaporator capacity. Direct integration into the DCS ensures robust implementation and sustainable performance.
APC becomes a strategic lever for optimizing the energy performance, reliability, and profitability of the black liquor evaporation process.
Recausticizing
The recausticizing process is essential to chemical recovery and the overall performance of the liquor cycle. Process variability directly affects causticizing efficiency, chemical consumption, and equipment availability, ultimately impacting mill stability and profitability.
Enero’ APC solutions optimize recausticizing by:
- Stabilizing causticizing efficiency for optimal chemical utilization
- Reducing chemical dead load
- Increasing throughput and equipment availability
- Improving process stability and production consistency
- Integrating directly into the DCS for robust, advanced process control
These solutions improve reliability, optimize chemical costs, and maximize overall process performance.
APC becomes a strategic lever for transforming recausticizing into a more stable, efficient, and cost-effective process.
Lime Kiln
The lime kiln is at the heart of the lime cycle. Process variability directly affects lime quality, combustion efficiency, white liquor stability, and fossil fuel consumption, impacting the overall performance and sustainability of the chemical recovery process.
Enero’ APC solutions optimize lime kiln operations by:
- Stabilizing lime production and quality for consistent slaker operation
- Optimizing combustion through the CCS-BMS
- Reducing process variability and unplanned downtime
- Reducing fossil fuel consumption and greenhouse gas emissions
- Maximizing the capabilities of the BMS for advanced and safe combustion control
These solutions improve reliability, increase performance, and enhance the sustainability of lime kiln operations. Direct integration into the DCS ensures robust implementation and long-term performance.
APC becomes a strategic lever for optimizing the quality, reliability, and profitability of the lime reburning process.
