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Monitoring of the concentration of sulfuric acid and oleum by means of sonic velocity The LiquiSonic® measuring system from SensoTech GmbH guarantees automatic identification and optimal inline monitoring.
C
onventional monitoring of sulfuric acid and oleum is carried
desired, passed on to a process control system. Compared to the
out in many production facilities with manual sampling. These
separate inline measurement of both components, the simultaneous
samples are then analysed in the laboratory and a result
inline measurement has clear advantages. While the respective
is available a few hours later. In production, fast and accurate
calculation model must be selected for individual measurements,
monitoring of the concentration is of great importance, as this
this work step is completely omitted. This has the advantage that
influences the quality. It is precisely this determination of the
the concentrations, especially around the switchover point, can be
concentration that can be ideally realized by means of sonic velocity
determined exactly at any time and in a matter of seconds. Manual
with very high measuring accuracy.
identification and switching are no longer necessary.
It is a challenge for many users that although sulfuric acid and oleum
If necessary, the maintenance-free measuring system
occur in the same part of the plant, identification with a physical
LiquiSonic® offers the possibility of adjusting the calculation model to
quantity alone is not possible. Therefore, empirical values have to be
emerging additional components, gas bubbles and other disturbing
used, which can lead to major problems in case of a wrong decision.
factors. The device can thus be used very flexibly and adapted to
For this reason, the combination of two physical measurands for
changing process conditions.
product identification has proven to be advantageous.
The simultaneous monitoring of sulfuric acid and oleum with LiquiSonic® thus revolutionizes the workflow in production plants.
LiquiSonic® - The smart process monitoring system
By saving time-consuming and inaccurate sampling with the help
By using a feature specially developed for this requirement, switching
of simultaneous inline measurement, an increase in efficiency is
between the areas is fully automated with the LiquiSonic measuring
possible immediately after installation of the measuring system.
®
system from SensoTech GmbH. The concentrations are determined with a specially developed calculation model, displayed and, if
For further information: www.sensotech.com
© Sensotech
The controller reliably displays both concentration values - sulfuric acid and oleum.
176
N. 69 - MAY/JUNE 2021 - international PAINT&COATING magazine
