Thermodynamic study on gas hydrate formation and dissociation

• Grant number: 15/23148-9
• Support type: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): December 01, 2015
• Effective date (End): October 31, 2019
• Field of knowledge: Engineering - Chemical Engineering
• Principal researcher: Maria Dolores Robustillo Fuentes
• Grantee: Davi Éber Sanches de Menezes
• Home Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 14/02140-7 - Study on the formation and dissociation of gas hydrates, AP.JP
• Associated scholarship(s): 17/01351-2 - Structural study of gas hydrates at high pressures, BE.EP.DD

Abstract

Gas hydrates are solid structures formed by association of water molecules and low molecular weight gases. It is important to understand the mechanisms of formation and dissociation of gas hydrates in several areas, being currently the most remarkable those related to flow assurance of oil and gas in pipelines, water purification, capturing and sequestration of CO2 or even the possible use of these hydrates as an alternative energy resource, replacing oil and coal. However, experimental thermodynamic properties under extreme conditions of pressure and temperature are scarce for these systems. These data are necessary to test reliability of thermodynamic models.The objective of this doctorate project is to develop a methodology to build gas hydrate phase diagrams based on high-pressure differential scanning calorimetry. The influence of several factors such as water salinity, pressure, temperature, hydrate composition and presence of inhibitors in the system will be considered. In addition, the applicability of current thermodynamic models existing in the literature will be studied. If necessary, alternative models will be developed. (AU)

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SANCHES DE MENEZES, DAVI EBER; PESSOA FILHO, PEDRO DE ALCANTARA; ROBUSTILLO FUENTES, MARIA DOLORES. Phase equilibrium for methane, ethane and carbon dioxide hydrates at pressures up to 100 MPa through high-pressure microcalorimetry: Experimental data, analysis and modeling. Fluid Phase Equilibria, v. 518, n. SI, AUG 15 2020. (17/01351-2, 15/23148-9, 14/02140-7, 14/25740-0)

SANCHES DE MENEZES, DAVI EBER; PESSOA FILHO, PEDRO DE ALCANTARA; ROBUSTILLO FUENTES, MARIA DOLORES. Use of 1-butyl-3-methylimidazolium-based ionic liquids as methane hydrate inhibitors at high pressure conditions. Chemical Engineering Science, v. 212, FEB 2 2020. (17/01351-2, 15/23148-9, 14/02140-7, 14/25740-0)

SANCHES DE MENEZES, DAVI EBER; RALHA, THIAGO WALDOWSKI; MERCIER FRANCO, LUIS FERNANDO; PESSOA FILHO, PEDRO DE ALCANTARA; ROBUSTILLO FUENTES, MARIA DOLORES. SIMULATION AND EXPERIMENTAL STUDY OF METHANE-PROPANE HYDRATE DISSOCIATION BY HIGH PRESSURE DIFFERENTIAL SCANNING CALORIMETRY. Brazilian Journal of Chemical Engineering, v. 35, n. 2, p. 403-414, APR-JUN 2018. (14/25740-0, 15/23148-9, 14/02140-7)

SANCHES DE MENEZES, DAVI EBER; SUM, AMADEU K.; DESMEDT, ARNAUD; PESSOA FILHO, PEDRO DE ALCANTARA; ROBUSTILLO FUENTES, MARIA DOLORES. Coexistence of sI and sII in methane-propane hydrate former systems at high pressures. Chemical Engineering Science, v. 208, NOV 23 2019. (14/25740-0, 17/01351-2, 15/23148-9, 14/02140-7)

DOLORES ROBUSTILLO, MARIA; SANCHES DE MENEZES, DAVI EBER; PESSOA FILHO, PEDRO DE ALCANTARA. Experimental determination of dissociation temperatures and enthalpies of methane, ethane and carbon dioxide hydrates up to 90 MPa by using a multicycle calorimetric procedure. FUEL, v. 312, MAR 15 2022. (14/25740-0, 14/02140-7, 15/23148-9)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MENEZES, Davi Éber Sanches de. Thermodynamic study on gas hydrates: experimental determination of equilibrium data by high-pressure microcalorimetry and modeling up to 100 MPa.. 2020. Doctoral Thesis - Universidade de São Paulo (USP). Escola Politécnica (EP/BC) São Paulo.