WP-047
Optimizing the chlor-alkali process through online chemical analysis
Summary
Chlorine and caustic soda are important raw materials widely used in the manufacturing of pulp and paper, petrochemicals, and pharmaceuticals. These chemicals are mostly produced through the chlor-alkali process, which makes up 95% of global production. The chlor-alkali process relies on the electrolysis of purified brine, making precise monitoring essential for maintaining membrane efficiency and product quality.
While overall process monitoring is vital, brine analysis and hardness (calcium and magnesium) monitoring are important aspects of process analysis for chlor-alkali. Advanced instruments like a hardness in brine analyzer ensure the purity of the brine, protect the electrolysis membranes, and support the consistent production of high-quality chlorine and caustic soda.
This White Paper covers the following topics:
- The chlor-alkali process and the advantages of using membrane electrolysis
- The importance of brine purity and its impact on production efficiency and costs
- How online and inline process analysis optimize chlor-alkali production and reduce downtime
- Key monitoring techniques for impurities, moisture, and product quality
- Cost-saving benefits of automation in chemical analysis
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This White Paper explores the critical role of advanced online and inline process analysis in brine chlorine operations, emphasizing their advantages over traditional methods. It highlights how membrane fouling, a costly challenge in the electrolysis process, can be mitigated with advanced hardness analyzers and real-time monitoring systems. The document focuses on membrane cell technology, a leading method in the chlor-alkali industry. Finally, it explains how controlling key variables can optimize performance, enhance efficiency, and reduce operational downtime.