Monitoring of chlor-alkali electrolysis sub-processes

Monitoring of chlor-alkali electrolysis sub-processes

Chlorine and caustic soda are essential chemicals whose production is indispensable for further chemical processes. Due to the immense production volumes, small deviations and errors in the individual production steps can mean major financial losses. For this reason, seamless and precise process monitoring is important. With LiquiSonic®, SensoTech GmbH offers a process monitoring system that meets these high requirements.

Monitoring reactant and product quality

Precise monitoring of the starting materials already shows its advantages during the preparation of the brine. With LiquiSonic®, the concentration of the sodium chloride solution can be precisely adjusted down to 0.1 m%. Maximum saturation extends the service life of the membranes during electrolysis and saves energy during the subsequent concentration of the sodium hydroxide solution.

After electrolysis, the sodium hydroxide solution (NaOH) must still be freed from unwanted NaCl residues and then concentrated to the usual purity. With LiquiSonic®, this process can also be monitored and controlled in real time. The result is high plant efficiency and unbeatable product quality.

Application in the drying of chlorine gas

After the chlorine gas has been produced, the challenge is to reduce its process-related water content. Hygroscopic sulphuric acid is used as a drying agent for this purpose. Even the smallest deviations in the acid concentration lead to poor drying results and high costs or long-term damage to the system, e.g. due to rust. LiquiSonic® makes it possible to check the sulphuric acid concentration with an unbeatable accuracy of up to 0.03 m%. Poor results when drying chlorine are therefore a thing of the past.

The solution for inline process monitoring in real time

Many processes require fast reactions to changes or errors. LiquiSonic® reliably detects these deviations within seconds. Warnings can be issued via a variety of data interfaces - even by e-mail. This means that users are always informed about the status of their process.

  • Issue: Januar
  • Year: 2020
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Eugen G. Leuze Verlag GmbH & Co. KG
Karlstraße 4
88348 Bad Saulgau

Tel.: 07581 4801-0
Fax: 07581 4801-10
E-Mail: info@leuze-verlag.de

 

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