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Hydrate formation curve in Excel

Prode Properties 1.19 includes a utility which allows to calculate the hydrate formation curve directly in Microsoft Excel,
the distribution files include a Excel page hydrate.xls , from this page one can define composition including all common hydrate formers
C1 Methane,
C2 Ethane,
C3 Propane,
C4 n Butane
C4 i Butane
N2 Nitrogen
CO2 Carbon Dioxide
H2S Hydrogen Sulfide

plus inhibitors as Methanol, Ethanol, Glycol and salts (salts require the electrolyte package)

Hydrates modeled according van der Waals and Plateeuw (rigorous, statistical approach) and Cubic Plus Association (CPA) for vapor, liquid phases
A free students version is available from Prode WEB Site