Measurements of the speed of sound for mixtures of methane + butane with a particular focus on the critical state

Frederic Plantier, Ali Danesh, Mehran Sohrabi Sedeh, Jean L. Daridon, Fatosh Gozalpour, Adrian C. Todd

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    The speed of sound in binary mixtures of methane + butane has been measured in the subcritical, nearcritical, and supercritical regions as a function of pressure at 711 K. The measurements were based on an acoustic pulse technique using a high-pressure vessel equipped with two 1-MHz transducers to generate and receive the ultrasonic wave. The results showed that the speed of sound decreased with decreasing pressure for mixtures in the subcritical region, whereas it passed through a minimum in the supercritical region. © 2005 American Chemical Society.

    Original languageEnglish
    Pages (from-to)673-676
    Number of pages4
    JournalJournal of Chemical and Engineering Data
    Volume50
    Issue number2
    DOIs
    Publication statusPublished - Mar 2005

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