RT info:eu-repo/semantics/article T1 Gas solubility and rheological behavior study of betaine and alanine based natural deep eutectic solvents (NADES) A1 Altamash, Tausif . A1 Nasser, Mustafa S. A1 Elhamarnah, Yousef A1 Magzou, Musaab . A1 Ullah, Ruh . A1 Qiblawey, Hazim . A1 Aparicio Martínez, Santiago A1 Atilhan, Mert . K1 Deep eutectic solvents K1 Natural products K1 Gas solubility K1 Rheology K1 Chemistry, Physical and theoretical K1 Química física AB Natural deep eutectic solvent (NADES) produced herein this work by mixing betaine and alanine with lactic acid and malic acid with 1:1 M mixing ratios. Thermophysical properties including water content, thermal stability, density and gas solubility of CO2 and N2 were experimented at different isotherms for wide pressures range up to 50 bars. Moreover, detailed rheological experiments were conducted on the studied materials to obtain viscosity and deduce the dynamic flow behavior. A pressure driven physisorption mechanism was observed for the studied systems. Betaine based NADES materials showed superior carbon dioxide and nitrogen solubility when they are mixed with lactic acid. On the other hand, the rheological experimental results show shear-thinning effect in which the η is decreasing with shear rate at all temperatures. Low viscosity profiles NADES assure the less mass transfer resistance for lactic acid based NADES systems and it also confirmed that the high CO2 and N2 solubility for lactic acid based NADES samples. PB Elsevier SN 0167-7322 YR 2018 FD 2018-04 LK http://hdl.handle.net/10259/4781 UL http://hdl.handle.net/10259/4781 LA eng NO NPRP grant # 6-330-2-140 from the Qatar National Research Fund (a member of Qatar Foundation) and by Ministerio de Economía y Competitividad (Spain, project CTQ2013-40476-R). DS Repositorio Institucional de la Universidad de Burgos RD 24-abr-2024