Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Inhibition of Carbon Dioxide Hydrates by Ethanol and Sodium Chloride
Submission Author:
Moisés Marcelino Neto , PR
Co-Authors:
Amanda Guembaroski, Moisés Marcelino Neto, Rigoberto Morales, Amadeu Sum
Presenter: Amanda Guembaroski
doi://10.26678/ABCM.COBEM2017.COB17-1232
Abstract
In view of the possibilities for hydrate formation caused by carbon dioxide-rich fluids in the Brazilian Pre-Salt fields’ production lines, this study focus on experimental measurements to obtain fundamental insight into the phase behavior of carbon dioxide hydrate forming systems. In this study, the carbon dioxide hydrate phase behavior was measured using a high pressure equilibrium cell in the temperature range of 273-279 K and pressures up to 5.1 MPa. Experimental measurements were performed using a static-synthetic apparatus and an isothermal method by monitoring the pressure response of the system with volume changes for hydrate dissociation. Hydrate equilibrium conditions (LW-H-V) were obtained for CO2 in aqueous solution of 0.02, 0.05, 0.10 and 0.15 NaCl mass fraction and 0.02, 0.05, 0.10 and 0.15 ethanol mass fraction. In addition, the inhibiting effect on the formation of hydrates at constant pressure was compared. Comparing the same concentration of inhibitors, NaCl exhibited a stronger inhibiting effect than ethanol.
Keywords
Hydrates, Carbon dioxide, inhibitors, inhibiting effect
