Title :
Pervaporation unit with MEMS gas sensor for the measurement of methane concentration in water
Author :
Pisliakov, A.V. ; Sokolov, A.V. ; Polovko, O.V. ; Guarnieri, V. ; Lorenzelli, L. ; Samotaev, N.N. ; Kujawski, W. ; Kujawska, A. ; Vasiliev, A.A. ; Legin, A.V.
Author_Institution :
Center for Phys. & Chem. Res., Nat. Res. Center Kurchatov Inst., Moscow, Russia
Abstract :
The monitoring of concentration of methane dissolved in water is important for the security of underwater pipelines, delineation of oil and gas fields, and optimization of proper location of oil and gas wells. The reported system consists of metal oxide gas sensor separated from water by hydrophobic pervaporation membrane. Methane MEMS sensor was based on multilayer SiO2/Si3N4 film equipped with platinum heater and coated with sensing layer made of nanoparticle SnO2/Pd (3 wt. %). Methane saturation of water leads to a decrease in sensor resistance by a factor of 6 - 7, the response time of the system is of 200-300 s.
Keywords :
chemical variables measurement; evaporation; gas sensors; hydrocarbon reservoirs; membranes; microsensors; nanoparticles; palladium; separation; silicon compounds; SiO2-Si3N4; SnO2-Pd; delineation; gas fields; gas wells; hydrophobic pervaporation membrane; location optimization; metal oxide gas sensor; methane MEMS sensor; methane concentration measurement; methane concentration monitoring; multilayer SiO2-Si3N4 film; nanoparticle; oil fields; oil wells; pervaporation unit; platinum heater; sensing layer; sensor resistance; underwater pipeline security; Gas detectors; Hydrocarbons; Instruments; Resistance; Temperature measurement; Time factors; gas leakage; gas sensor; methan in water; permiation membrane;
Conference_Titel :
Environmental, Energy and Structural Monitoring Systems (EESMS), 2015 IEEE Workshop on
Conference_Location :
Trento
Print_ISBN :
978-1-4799-8214-1
DOI :
10.1109/EESMS.2015.7175866
