Equilibrium modelling in kraft mills

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SUMMARY

This discussion focuses on the application of equilibrium modelling in kraft mills, specifically targeting areas prone to mineral scale deposits beyond bleach plants, such as digesters and chemical recovery sections. The participant has successfully implemented this modelling in bleach plants and seeks further studies or experiences related to its application in other mill areas. The conversation highlights potential challenges, including resistance from plant employees who may prioritize traditional practices over expert analysis, which can hinder broader research efforts.

PREREQUISITES
  • Understanding of equilibrium modelling techniques
  • Familiarity with kraft mill processes, particularly bleach plants
  • Knowledge of mineral scale formation and its implications in industrial settings
  • Awareness of the cultural dynamics within manufacturing environments
NEXT STEPS
  • Research equilibrium modelling applications in digester operations
  • Investigate case studies on mineral scale deposits in chemical recovery processes
  • Explore literature on the impact of workplace culture on operational efficiency in kraft mills
  • Learn about advanced modelling software used in industrial process simulations
USEFUL FOR

Process engineers, researchers in pulp and paper manufacturing, and professionals involved in scaling prevention strategies within kraft mills will benefit from this discussion.

Gollegun
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Hi,

I've been working with equilibrium modelling in bleach plants of kraft mills in order to find areas likely of being subjected to mineral scale deposits. This has been rather successful - and it's been done successfully be many people before me.

However, now I am interested in applying similar modelling to other areas of the mill where scaling may also be a problem (e.g. digester and chemical recovery). I'm struggling with finding studies where this has been done, and I'm wondering if anyone has any experience with equilibrium modelling in other parts of the mill than the bleach plant? Can this be successfully done or am I wasting my time trying?

I am happy to listen to experience anyone of you may have or studies that you can suggest that I read.

Thanks.
 
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Gollegun said:
modelling to other areas of the mill where scaling
Should be essentially the same chemistry. Specific studies? I can't help there --- anecdotally, there may be plant areas where employees "protect" folklore and tradition concerning plant operations as a form of job security --- i.e., "Don't want no experts doing us outa our jobs," and that has interfered with some studies of other paper plant operations.
 

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