Chloride and potassium removal plant services for recovery boiler performance and risk control

ANDRITZ chloride and potassium removal plant services keep recovery boiler risk under control by ensuring stable operation, maximizing chemical recovery, and preventing hidden issues from resulting in damage.

With deep process understanding and continuous, data-driven insight, chloride and potassium removal becomes a controllable driver of mill performance.

Key questions answered on this page:

An ANDRITZ ReCrystallization (ARC) plant is used for chloride and potassium removal

ANDRITZ chloride and potassium removal plant services ensure that the system consistently delivers the performance your recovery boiler depends on. This is achieved by combining the following services into one integrated approach, according to your mill’s needs.

Process studies and optimization

Understand what limits system performance and where improvements can be made. Process studies help evaluate how the system performs in practice and provide clear recommendations for optimization and corrective actions.

Mechanical inspections and condition monitoring

Identify equipment wear and hidden issues before they negatively affect performance or availability. Inspections of tanks, heat exchangers, piping, and instrumentation help uncover fouling, corrosion, and developing failures early, enabling planned maintenance instead of unexpected repairs.

Spare parts, repairs, and upgrades

Turn inspection findings into practical corrective actions. Spare parts, repairs, and upgrades help resolve equipment issues during operation and shutdowns, restoring performance and preventing future failures.

Centrifuge service and maintenance

Keep separation performance at the required level throughout the equipment lifecycle. ANDRITZ supports centrifuges with inspections, repairs, upgrades, and original equipment manufacturer (OEM) replacement parts, helping to prevent performance losses and extend equipment lifetime.

Continuous monitoring and operator support

Ensure that performance improvements are sustained over time. Regular performance follow-ups and operator support help identify changes in the operating conditions and maintain stable system performance.

How do ANDRITZ chloride and potassium removal plant services improve mill performance?

ANDRITZ chloride and potassium removal plant services create business value in four areas that directly affect production, energy costs, and plant availability:

Lower corrosion risk and fewer costly repairs. Controlling chloride and potassium accumulation helps reduce corrosion in the recovery boiler, lowering repair needs over time.
Stable conditions for reliable production. Controlling chloride and potassium levels reduces deposit build-up that can limit boiler capacity and increase the risk of process disturbances.
Less fouling-related energy losses. Consistent chloride and potassium removal keeps heat transfer surfaces cleaner and reduces the need for additional soot-blowing steam.
Higher recovery of valuable chemicals and lower make-up costs. Efficient separation retains sodium in the recovery cycle instead of losing it with ash streams that require continuous replacement.
Reduced risk of unplanned production interruptions. Systematic monitoring, inspections, and corrective actions identify emerging problems early, reducing the likelihood of shutdowns and associated production losses.

Performance and condition assessment

The partnership begins with a structured assessment of process performance, equipment condition, and operating practices to establish a clear understanding of the current situation.

Action planning

Assessment findings are translated into a practical action plan, focusing on the issues with the greatest impact on system performance and recovery boiler operation.

Implementation

Optimization, repairs, upgrades, and corrective actions are implemented during normal operation and planned shutdowns, according to the mill requirements and schedules.

Continuous follow-up

Performance, condition, and identified risks are reviewed regularly to track progress, detect changes, and update recommendations as operating conditions evolve.

ANDRITZ supports all chloride and potassium removal systems, regardless of the technology, age, or original supplier. The service model is technology-independent and applicable to ANDRITZ Ash ReCrystallization (ARC), ANDRITZ Ash Leaching (ALE), and other chloride and potassium removal systems. It is integrated into planned shutdowns and normal mill operations, allowing improvements to be implemented without disrupting production or established workflows.

Deep recovery process expertise
Experience across ARC, ALE, and third-party chloride and potassium removal systems
Technology-independent service model
Long-term support integrated with mill maintenance and operations