To demonstrate the practical impact of our innovative chemical solutions, NINGBO INNO PHARMCHEM CO.,LTD. presents a hypothetical case study focusing on the application of our Scale Inhibitor for Papermaking Black Liquor Evaporators in a typical pulp mill environment. This study highlights the challenges faced and the measurable benefits achieved through targeted chemical intervention.

Background: A medium-sized kraft pulp mill was experiencing persistent scaling issues in its black liquor evaporators. The scaling led to frequent shutdowns, averaging one shutdown every two months for manual cleaning, resulting in an estimated loss of 10-15% of potential production capacity annually. Energy consumption was also higher than industry benchmarks due to reduced heat transfer efficiency. The mill was actively seeking a reliable solution to improve evaporator performance and reduce operational disruptions.

Challenge: The primary challenge was the significant buildup of calcium carbonate and other mineral deposits on the heat transfer surfaces of the evaporators. This scale reduced the rate of water evaporation, increased steam demand, and necessitated frequent, time-consuming cleaning cycles that incurred substantial costs in terms of chemicals, labor, and lost production.

Solution Implemented: The mill decided to trial NINGBO INNO PHARMCHEM CO.,LTD.'s Scale Inhibitor for Papermaking Black Liquor Evaporators. The product was introduced into the black liquor feed at a controlled dosage, as per our recommendations. The formulation, with its effective dispersants and viscosity reducers, was designed to prevent the adherence of scale-forming particles and maintain optimal fluid dynamics within the evaporators.

Results Achieved:

  • Reduced Cleaning Frequency: Following the implementation of the scale inhibitor, the mill observed a dramatic reduction in the need for manual cleaning. The average interval between necessary shutdowns increased from two months to over six months, representing a 300% improvement in run time.
  • Improved Energy Efficiency: With cleaner heat transfer surfaces, the evaporators operated more efficiently. The mill reported a 12% decrease in specific steam consumption per ton of pulp produced, directly attributable to the improved heat transfer facilitated by the scale inhibitor.
  • Increased Production Uptime: The reduction in unscheduled downtime meant a significant increase in operational uptime. The mill successfully recovered an estimated 8% of previously lost production capacity.
  • Lower Operational Costs: The combined effects of reduced cleaning needs, lower energy consumption, and increased production led to a substantial decrease in overall operating costs for the alkali recovery process.

Conclusion: This hypothetical case study demonstrates the significant positive impact that our Scale Inhibitor for Papermaking Black Liquor Evaporators can have on a pulp mill's operations. By addressing the root cause of evaporator inefficiency – scale formation – our chemical additives for black liquor evaporation provide a cost-effective and performance-enhancing solution. NINGBO INNO PHARMCHEM CO.,LTD. remains committed to supporting the pulp and paper industry with innovative chemical technologies that drive efficiency, reduce costs, and promote sustainable practices in alkali recovery.