Lingli Shi, D. Liang, Dongliang Li
Jun 12, 2013
Citations
1
Influential Citations
42
Citations
Journal
Journal of Chemical & Engineering Data
Abstract
In this paper, phase equilibrium data of tetrabutylphosphonium bromide (TBPB) + CO2, + N2 semiclathrate hydrates were measured by employing an isochoric pressure-search method. The experimental temperature, pressure, and mass fraction of TBPB ranged from (282.2 to 292.0) K, from (1.32 to 16.86) MPa, and from (0.050 to 0.600), respectively. The results demonstrated that at a given pressure, the temperature required to form mixed TBPB + CO2, + N2 hydrates was significantly higher than that required for forming pure CO2 or N2 hydrates. In addition, the application of TBPB at 0.371 mass fraction, corresponding to TBPB·32H2O, showed the strongest stabilization effect.