During a month-long field test conducted by KECO in collaboration with a leading vapor recovery unit (VRU) manufacturer, KECO's OxyHound process gas analyzer demonstrated superior performance compared to traditional electrochemical analyzers. The test focused on measuring oxygen levels in gas streams. During the test, both the OxyHound and a conventional electrochemical analyser were set up to measure oxygen levels in a gas stream. The data collected was integrated into the VRU company's SCADA system, which took readings every two minutes. The results showed that the OxyHound significantly outperformed the electrochemical analyser in terms of accuracy and reliability.
The OxyHound uses advanced quench luminescence technology for gas sampling to ensure accurate oxygen measurement. This method uses the decay of light emitted by a specific luminophore over time to accurately determine the partial pressure of oxygen. The analyser tracks changes in light phase and intensity between the excitation light and the fluorescence response. The on-board computer uses this data to calculate oxygen levels in real time.
Long sensor life
A cost analysis between the two technologies revealed that the electrochemical instruments required cell replacement at least twice a year due to exposure to water. The estimated annual replacement cost was approximately $1,000. In contrast, OxyHound's quench luminescence technology is non-consumable, requires no consumables and only occasional sensor recalibration. These factors significantly reduced both cost and labour.
While electrochemical analysers are susceptible to liquid contamination, the OxyHound can operate in environments with contaminants such as H2S, CO2, H2, propylene, methanol and ethanol mixtures. Its insensitivity to various gases makes it ideal for applications in natural gas pipelines, refineries, biogas production, chemical plants, landfills, wastewater treatment, manufacturing, food and beverage, and renewable energy sectors. The analyser is designed for use in Division 2 & Zone 2 hazardous locations.
