In petrochemical industry, downstream operations can be optimized detecting hydrocarbons in the gas phase. Laser-based spectroscopic sensors are well suited for this application, since they proved to be highly selective, sensitive and robust. Quartz enhanced photoacoustic spectroscopy (QEPAS) is an optical technique, offering also a high level of compactness. In this work, a QEPAS sensor implementing a custom T-shaped quartz tuning fork and an interband cascade laser emitting at 3367 nm was employed to detect methane, ethane and propane in natural gas-like mixtures. The partial least square regression analysis was implemented to measure the hydrocarbons concentrations in the acquired signals.
Quartz enhanced photoacoustic spectrometer for natural gas composition analysis
Menduni G.;Zifarelli A.;Di Gioia M.;Giglio M.;Patimisco P.;Sampaolo A.;Marzocca C.;Passaro V. M. N.;Spagnolo V.
2022-01-01
Abstract
In petrochemical industry, downstream operations can be optimized detecting hydrocarbons in the gas phase. Laser-based spectroscopic sensors are well suited for this application, since they proved to be highly selective, sensitive and robust. Quartz enhanced photoacoustic spectroscopy (QEPAS) is an optical technique, offering also a high level of compactness. In this work, a QEPAS sensor implementing a custom T-shaped quartz tuning fork and an interband cascade laser emitting at 3367 nm was employed to detect methane, ethane and propane in natural gas-like mixtures. The partial least square regression analysis was implemented to measure the hydrocarbons concentrations in the acquired signals.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
