A new process oxygen analyser precisely calculates natural gas, biogas and other gas streams in real time
A new process oxygen analyser precisely calculates natural gas, biogas and other gas streams in real time.
With over 40 years of experience of providing liquid and gas phase on-line continuous process analysers to the oil and gas industry, Houston-based manufacturer Analytical Systems Keco has introduced another analyser that conducts real-time and continuous oxygen analysis of natural gas, biogas, and other gas streams.
Utilising optical quench luminescence technology for gaseous sampling, the OxyHound analyser conducts precise oxygen measurements in a gaseous phase (ppmv and % on a molar basis) with no cross-sensitivity with CO2, H2S, NH3 or SO2, sulphate or other ionic species.
How it works
The OxyHound analyser uses advanced optical quench luminescence, tailored for precise oxygen measurement in process streams. This technology hinges on the phase modulation of an oxygen-specific luminophore’s luminescent decay time, enabling accurate calculation of oxygen’s partial pressure.
OxyHound measures the phase shift and intensity variation between the excitation light and the fluorescent response. From these measurements, the oxygen concentration is precisely calculated by the on-board computer in the analyser in real-time.
With a user-friendly and low-maintenance design, the OxyHound eliminates the need for electrolyte changes or membrane maintenance. Utilising Keco’s Cloud Connect service, users can remotely monitor the analyser on any web-connected device using LTE-M.
According to its developers, these features and its versatility to work as an O2 analyser or oxygen meter (data logger) make the OxyHound an ideal replacement for older technologies like paramagnetic analysers, electrochemical cells, and in some instances, zirconia and Tunable Diode Laser (TDL).
Real applications
Built for Division 2 and Zone 2 hazardous locations, the OxyHound operates in a range of environments with contaminants such as H2S, CO2, H2, propylene, methanol, and ethanol mixtures.
The gas analyser can be used in various industries, including natural gas pipelines and refineries. For example, in the oil and gas sector, the process gas analyser can measure traces of O2 levels in various operations from vapor recovery units (VRUs) to enhanced oil recovery processes.
