For purity control during hydrogen purification by water electrolysis and performance evaluation of permeable membranes!
We have launched an (explosion-proof) oxygen concentration meter capable of measuring in ppm units, including a sampling device for measuring oxygen immediately after hydrogen purification by water electrolysis. ● Integrated sampling system ● Dual drain processing ● Measurement in ppm units ● Intrinsically safe explosion-proof certified product (overseas IEC/CSA certified) ● Galvanic battery type (electrochemical) patented sensor ● High response speed, long life, disposable proprietary developed patented sensor In hydrogen production through water electrolysis, if the performance of the permeable membrane is poor, oxygen ions can pass through the membrane, resulting in the generation of oxygen as an impurity. Therefore, by measuring the oxygen concentration immediately after the electrolytic cell, we can evaluate the performance of the permeable membrane and manage the purity of hydrogen. Since oxygen in hydrogen can lead to a high dew point and is prone to condensation, expertise such as drain removal is necessary for measurement. Utilizing our experience in measuring oxygen concentration and dew point, we developed the product as a control panel that includes a sampling system. For more details, please check the basic information.
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basic information
Proton conductors are generally used in hydrogen permeable membranes. These are polymer membranes with a solid polymer structure. They are similar to the proton type membranes commonly used in fuel cells, which include alkaline, proton, and solid oxide types. In separation membranes, a phenomenon occurs where oxygen ions (O2-) can permeate from the cathode to the anode due to the performance of the separation membrane. Therefore, it is important to measure the oxygen concentration in parts per million (PPM). Conversely, there is also a phenomenon where hydrogen ions (H+) backflow from the cathode to the anode. If the proton separation membrane continues to be used, embrittlement occurs and degradation happens, which intensifies the aforementioned trends. Such interfacial research is being conducted in the field of tribology.
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Applications/Examples of results
- ENEOS Australia MCH Demonstration Plant - Fuel Cell - Solid Oxide - Hydrogen Production - Electrolysis - Others
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Company information
We introduce various measuring instruments and devices related to moisture management, including the domestic capacitive dew point meter TK-100 series, mirror-type dew point meters, oxygen concentration meters, humidifiers, and moisture meters for corrosive gases. By organically combining these, as well as through piping, line creation, and unitization, we provide customized products and respond quickly to complex issues.
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