Phase equilibrium modeling of gas hydrate systems for CO2 capture

Experimental measurement and thermodynamic modelling of hydrate phase equilibrium conditions for krypton + n -butyl ammonium bromide aqueous solution

“…As shown in Table 2, these experimental data are reported in 11 the temperature range of (279 to 297.1) K and pressures ranging from (0.12 to 4.73) MPa. As shown in Figure (11) where NDP denotes the number of data points, T exp and T cal are the experimental and calculated krypton hydrate dissociation temperatures, respectively. The optimized Antoine and Langmuir constants for the krypton hydrate are reported in Tables 6 and 7, respectively.…”

“…Gas hydrates have the ability to store a large amount of gas, for example approximately 170 m 3 of methane gas for 1 m 3 of methane hydrate at standard conditions [1][2][3]. In addition gas hydrates can be used as a media for gas separation and transportation [4][5][6], water desalination [6][7][8][9], carbon dioxide capture [10,11], refrigeration [12][13][14][15][16], and concentration of dilute aqueous solutions [17][18][19]. Even though the 3 application of gas hydrates in gas separation and storage technology have been shown to be quite promising, their slow rate of formation as well as their elevated hydrate formation/dissociation pressures are hurdles which must be overcome in order to establish a practical and cost effective application [1][2][3].…”

Decision tree‐based modeling of CO2 equilibrium absorption in different aqueous solutions of absorbents

“…There are variety of different processes and technologies for CO 2 capture from industrial and natural gas streams. Adsorption‐based methods , cryogenic fractionation based CO 2 recovery , hydrate‐based systems , permeation processes , and absorption with solvents are the main approaches. In some studies, hybrid systems are proposed for CO 2 removal .…”

Hydrate phase equilibrium for CH4‐CO2‐H2O system in porous media

“…Despite the great interest existing in hydrate phase equilibrium of binary or ternary components, including CO 2 and CH 4 , few researchers have focused on the phase equilibrium for CO 2 /CH 4 hydrate in porous media . Additionally, the data available on the influence of different gas proportioning on the equilibrium condition are limited, which is an essential topic for further research on replacing CH 4 in natural gas hydrate by CO 2 .…”