Design and test of a new high pressure phase equlibrium apparatus for highly corrosive mixtures of importance for natural gas

M. Mota Martinez, S. Samdani, A.S. Berrouk, M.A. Alves da Rocha, E.Y. Elhseinat, F. Banat, M.C. Kroon, C.J. Peters

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    2 Citations (Scopus)
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    Abstract

    A new static analytical apparatus for high-pressure phase equilibrium measurements has been designed and built. The new apparatus enables the measurement of vapor–liquid and liquid–liquid equilibria, which can operate at temperatures ranging from 225 K to 475 K and pressures up to 20 MPa. It is constructed in Titanium and alloy C276, being suitable for highly corrosive systems of interest for the gas industry (e.g., for hydrogen sulfide containing mixtures). The apparatus is equipped with two Rapid Online Sampling Injectors (ROLSI™) enabling the withdrawing of micro-samples without disturbing the equilibrium conditions. A gas chromatograph is connected to the apparatus for direct analysis of the phases' compositions. The quality and performance of the new apparatus has been evaluated by measuring a well reported system (carbon dioxide + methylcyclohexane).
    Original languageEnglish
    Pages (from-to)661-665
    Number of pages5
    JournalJournal of Natural Gas Science and Engineering
    Volume27
    Issue number2
    DOIs
    Publication statusPublished - 1 Nov 2015

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