Hydrate Phase Equilibrium for Methane in Synthetic Seawater

This paper discuss on the experiment to determine the hydrate phase
equilibrium for methane and synthetic seawater solution of different salinity. This
will help to understand the phase equilibrium behaviour and effect on the phase
equilibrium line using various concentrations of methane and synthetic seawater.
Due to lack of experimental data for these system in open literature and also the
problem caused by gas hydrate plugging in the production and transportation line had
made it important to investigate on the hydrate phase equilibrium of these mixtures.
In the present work, the isobaric three phase, hydrate, water rich liquid, and vapour
equilibrium conditions are going to be studied and measured in order to identify the
hydrate forming stable region. The experiment will be carried out in a low
temperature range and high pressure condition. A full view of Hydreval equipment
will be used to gather data on the methane hydrate formation using the synthetic
seawater prepared with 28 000 ppm, 31 000 ppm and 35 000 ppm of salinity. The
findings will give better insight for the design of industrial operations where it is
desired to understand the behaviour of gas hydrate in order to avoid its formation.