Maximizing profitability in chemical pulping
For decades, Metso's automation products and services have helped you to optimize the performance of your processes and the end-use performance of your products. But Metso is much more than just a product company. With extensive knowledge of how pulp and paper processes work and how they can be optimized Metso provides solutions to the challenges facing you today.
With accurate, reliable process and product measurements, stabilizing controls, valves and other control devices, advanced multi-variable process controls, and operator information tools, Metso provides the means and the knowledge to solve process stability issues and ensure maximum and sustainable profitability. Together with you, our clients, we analyze and provide solutions to the most common and chronic causes of instability, inefficiency, and high costs. And furthermore, we deliver the results you ask for and expect.
Our tailor-made solutions address the common issues that chemical pulp producers face today.
Establishing process stability
Metso`s Advanced Process Controls achieve a high level of stability in the unit processes of the fiber line and recovery line. Stabilizing control actions are based on Metso’s online process analyzers which measure the process condition, chemical reaction rates and product quality. Our comprehensive range of fiber consistency measurements provides precise mass flow and chemical dosage controls throughout the fiber line.
Lower consumption, reduced costs
Batch and continuous pulping processes are stabilized during steady state operation and, most importantly, during process upsets and grade transition periods. By stabilizing the cooking processes Kappa number variation has been significantly reduced, thereby improving the consistency of pulp quality and increasing pulp yield. This means that white liquor consumption and wood consumption per ton of pulp have been reduced.
Steam energy savings are also a major part of the return on investment for pulping optimization controls.
Washing line optimization controls have consistently improved washing efficiency and reduced downstream bleaching chemical costs.
Significant chemical savings have been achieved by the use of Kajaani process analyzers and optimization controls in the oxygen delignification and bleaching stages. Our customers report that quality uniformity has been optimized while costs have been cut.
Improved thermal efficiency
Thermal efficiencies have been improved by implementing Advanced Process Controls in kraft pulp recovery lines. In the back liquor combustion process higher reduction degrees have been achieved and extra process steam has been generated.
By optimizing the sootblowing process, the use of boiler tube cleaning steam has been significantly reduced.
Improved control over heat transfer in the evaporation process has resulted in reduced steam consumption as well as more stable solids content for the black liquor combustion process.
Stabilized burning conditions in the lime kiln have led to lower specific energy consumption, fuel savings, lower emissions, improved lime quality and extra capacity.
There are further energy savings available by optimization of the entire recovery line process by managing the energy balance and the storage capacity. These whole-line controls stabilize the operation and, by taking advantage of the enhanced stability of operation, optimize energy consumption.
Elimination of bottlenecks
By optimizing the stability and throughput of unit operations in the fiber line and recovery line, process bottlenecks have been eliminated and the full production capacity of the mill has been realized. Our customers report that solving a bottleneck in one unit operation often has a positive effect on the stability and production capacity of the entire line.
Excellent return on investment
Metso’s chemical pulping solutions have produced an excellent return on investment by significantly increasing process productivity and efficiency, stabilizing product quality, increasing energy generation and reducing energy and chemical consumption.
Extending automation network lifecycles and minimizing lifecycle costs
By modernizing and upgrading the capabilities of your existing automation infrastructure maintenance costs can be slashed, uptime can be maximized and the lifecycle of your investments in automation can be extended for many years. Also, with a more capable platform for automation, many optimizing controls can be added now and the in the future for additional return on investment.