(286f) Effect of Thermodynamic Promoter (TBAB) in Gas Hydrates Dissociation Conditions of the Mixture H2O + CO2 + Undecane

In México, there are reservoirs with high content of water (20 % or more) like Cantarell where hydrate formation can be simple. For this reason, the oil industry record an increase of produced water during the extraction of these resources in oil production wells, so it is necessary to develop a low cost effective process for separating water from oil. A novel alternative that can be considered for the separation of these phases is the gas hydrates formation. Gas hydrates are ice-like crystalline structures, mostly formed by water and small gas molecules with low molecular weight.

In this work, the experimental dissociation conditions for the gas hydrate formed in the mixture: H₂O + C₁₁H₂₄ + CO₂ + TBAB in a wide composition range of TBAB (0.05, 0.10, 0.20, 0.30, 0.40) were determined in the temperature range from 274.15 to 291.15 K and a pressure up to 4.0 MPa. The composition is expressed as mass fraction, the combined expanded uncertainties of the dissociation conditions were estimated to be less than 0.012 MPa, 0.020 K and 0.0015 for pressure, temperature and mass fraction, respectively. The goal of this study is to know the effect of the thermodynamic promoter in the hydrate formation process. The experimental equipment used in this work is based on the static-synthetic method using the isochoric technique.