Hydrocarbon gas measurements using nuclear magnetic resonance
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United States of America Patent
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Jun 16, 1992
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N/A
app pub date -
Jun 12, 1990
filing date -
Jun 12, 1990
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Expired
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Abstract
A method of using a transient NMR response signal to determine physical properties of gases, specifically calorific content and compressibility, while the gas is in-line. The amplitude of the free induction decay signal, as well as relaxation time constants, are used to identify components of a gas mixture and to determine relative composition. This data is then used to calculate calorific value and compressibility as a function of the hydrogen content of components of the gas rather than as a function of the total hydrogen content of the gas.
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