| Full text | |
| Author(s): |
Sanches de Menezes, Davi Eber
[1]
;
Pessoa Filho, Pedro de Alcantara
[1]
;
Robustillo Fuentes, Maria Dolores
[1]
Total Authors: 3
|
| Affiliation: | [1] Univ Sao Paulo, Engn Sch, Dept Chem Engn, Av Prof Luciano Gualberto 380, BR-05508010 Sao Paulo, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | Chemical Engineering Science; v. 212, FEB 2 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
The performance of 1-Butyl-3-methylimidazolium chloride ({[}BMIM]{[}Cl]) and 1-Butyl-3-methyl-imidazolium bromide ({[}BMIM]{[}Br]) as methane hydrate inhibitors is evaluated in this work. New hydrate dissociation data were obtained through high-pressure calorimetry for aqueous solutions with inhibitor mole fractions of 1.0%, 5.0%, 10.0%, and 15.0% and pressures from 9.6 to 100 MPa. Challenging situations from the experimental point of view were also explored. These ionic liquids are known to be both kinetic and thermodynamic inhibitors, but they promote hydrate growth at mole fractions of 1% and 5% in the pressure range studied. The effectiveness of these ionic liquids as thermodynamic inhibitors at high pressures is compared to that of methanol, a commercial inhibitor commonly used in the oil and gas industry. {[}BMIM]{[}Cl] is more effective than {[}BMIM]{[}Br] and methanol, considering equimolar aqueous solutions, even though methanol is more effective for solutions with the same mass fraction. (C) 2019 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 17/01351-2 - Structural study of gas hydrates at high pressures |
| Grantee: | Davi Éber Sanches de Menezes |
| Support type: | Scholarships abroad - Research Internship - Doctorate (Direct) |
| FAPESP's process: | 15/23148-9 - Thermodynamic study on gas hydrate formation and dissociation |
| Grantee: | Davi Éber Sanches de Menezes |
| Support type: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 14/02140-7 - Study on the formation and dissociation of gas hydrates |
| Grantee: | Maria Dolores Robustillo Fuentes |
| Support type: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 14/25740-0 - Study on the formation and dissociation of gas hydrates at high pressure |
| Grantee: | Maria Dolores Robustillo Fuentes |
| Support type: | Scholarships in Brazil - Young Researchers |