Measurement of molecular humidity and oxygen in natural gas

7th International Conference: Modern Technologies For Non-Destructive Testing

Kondratyevv, I.A.^1 ; Shakhmatov, A.A.^1 ; Pirog, V.P.^1 ; Nosenko, L.F.^1 ; Nikitina, E.A.^2 ; Luchnikov, P.A.^2 ; Nazarenko, A.A.^2

Experimental Design Bureau of Automation, Angarsk, Russia^1

MIREA - Russian Technological University, Moscow, Russia^2

关键词: Absolute pressure;    Continuous analysis;    Dewpoint temperature;    Gas pressures;    Mass concentration;    Measurements of;    Phosphorus oxide;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/457/1/012018/pdf
DOI  :  10.1088/1757-899X/457/1/012018

来源: IOP

【 摘 要 】

The coulometric method of measuring humidity and oxygen on the basis of an electrolytic cell with a film of phosphorus oxide for continuous analysis of natural gas in pipelines of its transportation is considered. On the basis of the method the device is implemented that is designed to determine the mass concentration of water vapor mg•m-3, the dew point temperature in water at absolute pressure of the analyzed natural gas, as well as the volume fraction of oxygen. Measurements of the mass concentration of water vapor is from 1 to 100 mg•m-3, and the volume fraction of oxygen is from 10 to 10000 ppm at a gas pressure from 0.16 to 25 MPa. The main reduced measurement inaccuracy is from 3 to 6 %.