solution being negligible. The hydrate phase equilibrium measurements
were performed at the temperature range of (275.97 to
293.99) K and pressure range (1.56 to 18.78) MPa with using the
isochoric equilibrium step-heating pressure search method.
Figure 1 shows typical (pressure + temperature) traces, from which
the hydrate dissociation point can be determined [13]. In the present
work, the uncertainty for determining the hydrate dissociation
point was ±0.01 MPa and ±0.1 K.