Process Navigation: To review the entire plant workflow from raw brine to final environmental compliance, return to the Chlor-Alkali Process: Analytical Measurement Solutions Overview.
MZD Analytik GmbH (Germany) develops specialized analytical platforms engineered to withstand the extreme chemical stressors—corrosion, high salinity, oxidation, and humidity—found in chlor-alkali production. By integrating proprietary sensing technologies, MZD instruments provide exceptional stability, reduced maintenance, and long-term accuracy in the most demanding industrial environments.
1. Trace Moisture Measurement Technology: P2O5 Trace Moisture Analyzers
Trace moisture control in chlor-alkali production is mission-critical. MZD's P2O5 electrolytic trace moisture analyzer is the industry standard for these applications.
Corrosion-Resistant Architecture: The sensor, constructed from zirconia or glass, is housed in a PVDF flow cell designed for highly corrosive acidic gases including Cl2, HCl, and SO2.
Absolute Measurement: As an absolute measurement technology, it is stable and drift-free, avoiding the sensor-aging and calibration drift issues inherent in traditional capacitive dew-point methods.
Ease of Maintenance: The sensor requires periodic regeneration with phosphoric acid (typically every 3–6 months), keeping operational costs extremely low.
2. Solid-State Reference pH/ORP Analyzers
Traditional liquid-junction pH electrodes fail rapidly in chlor-alkali environments due to KCl electrolyte diffusion and junction clogging. MZD replaces this with a non-porous, electrochemically active ion-conductive polymer reference junction.
Long-Term Stability: The solid-state design eliminates junction fouling and provides a service life 3–5 times longer than conventional electrodes.
High Performance: Delivers a response time of <5 seconds and monthly drift <1 mV, even in high-salinity and strongly oxidizing media (e.g., chlorine, hypochlorous acid, caustic soda).
Operational Cost Savings: Ensures control accuracy within ±0.05 pH, reducing chemical consumption by 15–20% and doubling critical equipment replacement cycles.
3. Innovative Gas Sensing: VaporSense™ & BaroSense™ Technologies
MZD's innovative gas analyzers address two of the greatest challenges in process gas measurement: humidity-induced error and barometric pressure fluctuation.
MZD VaporSense™ Technology (Hydrogen Analysis)
Residual water vapor and alkaline mist during hydrogen handling often cause traditional thermal conductivity analyzers to report errors of 1–5 vol% (or >10% under saturation).
Mechanism: Integrates advanced temperature and humidity compensation algorithms with an anti-condensation/anti-dust design to correct readings in real time.
Benefit: Ensures stable operation in hydrogen headers and HCl synthesis loops regardless of the gas stream's humidity levels.
MZD BaroSense™ Technology (Oxygen Analysis)
Atmospheric pressure changes can cause significant measurement errors in both optical and electrochemical oxygen analyzers (e.g., 1% pressure change = 1% measurement error).
Mechanism: Automatically converts measured oxygen partial pressure into true volume concentration, compensating for pressure fluctuations in real time.
Benefit: Eliminates false alarms and reading drift caused by weather systems, ensuring reliable safety monitoring in hydrogen cathode chambers.
4. Optical & UV Gas Platforms
UV Gas Analyzers: Based on ultraviolet absorption spectroscopy, these offer high selectivity for Cl2, essential for monitoring process streams unaffected by background CO2, CO, or CH4.
Optical Oxygen Analyzers: Utilizing fluorescence-quenching, these sensors have no consumables, an expected life of >5 years, and provide extremely low drift for safety-critical O2-in-H2 monitoring.
5. Related Process & Technical Sections
Continue exploring our specialized chlor-alkali application segments and underlying measurement technologies:
Electrolysis & Dechlorination Process ( incl. Hydrogen Safety )
Core Analytical Technologies & Instrument Profiling (Technical Column)
For detailed technical datasheets or site-specific application consultation, please contact our support team at sales@mzdd.de.