Online determination of natural gas properties

✍ Scribed by Camal Rahmouni; Olivier Le Corre; Mohand Tazerout

• Book ID: 104446936
• Publisher: Elsevier Science
• Year: 2003
• Tongue: French
• Weight: 101 KB
• Volume: 331
• Category: Article
• ISSN: 1631-0721
• DOI: 10.1016/s1631-0721(03)00126-8

✦ Synopsis

Methane number and Lower Heating Value (LHV) of natural gas are determined by the online measurement of thermal conductivity at two different temperatures. Natural gas is first considered as a ternary mixture of the most important components. A pseudo-ternary composition can then be calculated, using the thermal conductivity formula for mixtures derived from kinetic theory. A non-linear system is solved numerically using the Newton-Raphson method. A sensor based on thermal conductivity measurement has been developed and tested successfully for many natural gas compositions.