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If water is present after the dry chlorine tower in brine electrolysis plants, the downstream compressor is corroded or the product quality is deteriorated. The moisture level is measured before and after the compressor to prevent the corrosion of the compressor and the deterioration of quality. Conventional trace moisture analyzers using a phosphorus pentoxide (P2O5) sensor measure process gas with the contacting sensor so there are problems such as the deterioration of the sensor, slow response time, high maintenance, and high running costs. The TDLS8000 Laser Analyzer is the solution to these problems.
Chlorine gas generated in the brine electrolysis plant is dehumidified in the wet chlorine tower and sent to the drying tower where the chlorine gas is dried using sulfuric acid solution. The dried chloride gas is sent to the dry chloride tower where the gas is dehumidified, and finally, the dry chloride gas is compressed by the compressor and liquefied, and then shipped as a product.
Electrolysis Plant
Unlike analyzers using a phosphorus pentoxide (P2O5) sensor, the TDLS responds fast to changes in the trace moisture of the sample.
Responsiveness Comparison between the TDLS and Moisture Analyzer Using P2O5 Sensor
Configuration Example of TDLS8000 Laser Analyzer Trace Moisture Measurement
A sampling system is used to introduce a process gas into the flow cell to measure it.
Features
TDLS Analyzer
Notes
Yokogawa’s new TDLS™8000 houses all of the industry’s leading features in one robust device. The platform design is for in situ measurements which negate the need for sample extraction and conditioning.
Oxygen analyzers provide valuable measurements in combustion control, process quality, safety and environmental applications.
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