abstract
The study of carbon dioxide (CO2) solubility in different solvents is important for the development of carbon capture and storage (CCS) technologies as well as for enhanced oil recovery (EOR) through CO2 injection. Using two different experimental methodologies, based on the synthetic method, the high-pressure solubilities of CO2 in four glymes, namely diethylene glycol methyl ether (DEGME), diethylene glycol dimethyl ether (DEGDME), diethylene glycol ethyl ether (DEGEE) and diethylene glycol diethyl ether (DEGDEE) were measured in a wide range of temperatures (293-353 K) and pressures up to 13 MPa. Furthermore, the experimental CO2 solubilities in the studied glymes were well described using the soft-SAFT EoS with parameters transferred from previous works, reinforcing its value as a reliable tool for the efficient simulation and design of new CCS/EOR technologies.
keywords
DIRECTIONAL ATTRACTIVE FORCES; MOLECULAR-BASED EQUATIONS; ASSOCIATING FLUID THEORY; CARBON-DIOXIDE; ELEVATED PRESSURES; PHASE-EQUILIBRIA; IONIC LIQUIDS; CRUDE-OIL; SAFT; MIXTURES
subject category
Energy & Fuels; Engineering
authors
Amaral, M; Crespo, EA; Dariva, C; Vega, LF; Carvalho, PJ; Coutinho, JAP
our authors
Emanuel de Almeida Crespo
Collaborator
Pedro J. Carvalho
Assistant ProfessorProjects
CICECO - Aveiro Institute of Materials (UID/CTM/50011/2013)
Projeto de Investigação Exploratória: Pedro Carvalho (IF/00758/2015)
acknowledgements
This work was developed in the scope of the project CICECO-Aveiro Institute of Materials, POCI-01-0145-FEDER-007679 (Ref. FCT UID/CTM/50011/2013) funded by FEDER through COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao (POCI) e and by national funds through FCT - Fundacao para a Ciencia e a Tecnologia. This work was funded by PARTEX OIL & GAS. P.J. Carvalho acknowledges FCT for a contract under the Investigador FCT 2015, contract IF/00758/2015 and E. A. Crespo for the PhD grant SFRH/BD/130870/2017.