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Title: Inferential determination of various properties of a gas mixture

Patent ·
OSTI ID:907923

Methods for inferentially determining various properties of a gas mixture, when the speed of sound in the gas is known at an arbitrary temperature and pressure. The method can be applied to natural gas mixtures, where the known parameters are the sound speed, temperature, pressure, and concentrations of any dilute components of the gas. The method uses a set of reference gases and their calculated density and speed of sound values to estimate the density of the subject gas. Additional calculations can be made to estimate the molecular weight of the subject gas, which can then be used as the basis for heating value calculations. The method may also be applied to inferentially determine density and molecular weight for gas mixtures other than natural gases.

Research Organization:
Southwest Research Institute, San Antonio, TX (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC21-96MC33033
Assignee:
Southwest Research Institute (San Antonio, TX); Gas Research Institute (Des Plaines, IL)
Patent Number(s):
7,197,403
Application Number:
11/006,243
OSTI ID:
907923
Country of Publication:
United States
Language:
English