Experimental investigation of the density and viscosity of CO2-loaded aqueous alkanolamine solutions

Measuring the density and viscosity of H 2 S-loaded aqueous methyldiethanolamine solution

“…The PTx solubility data obtained using our setup for (CO 2 -methanol) binary mixture are also consistent with the corresponding values reported by Weber et al [34] at 298 K (AAD% = 3.7% and MAD% = 6.0%), with those reported by Ohgaki and Katayama [35] at T = (298 and 313) K (AAD% = 4.8% and MAD% = 6.8%), and also with those reported by Xia et al [36] [41] and Shokouhi et al [9] in figure 3.…”

“…for their support of this work. this work with those reported data, Hsu et al [43], Bernal-Garcia et al [42], Shokouhi et al [9], Rinker et al [20], Al-Ghawas et al [47] at the given temperatures. [20], Li et al [46], Al-Ghawas et al [47] at the given temperatures.…”

“…Vapor pressures of 46.78 mass% MDEA solutions obtained from this work compared with literature data (shokouhi et al[9], Xu et al[40],Kim et al [41]) at different temperatures.…”

“…In this method, it has been assumed that the partial pressure of acid gas in the vapour phase is the difference between their experimental results for the total pressure (above the charged liquid mixture) and the saturation pressure of the uncharged solvent c) There is a more serious problem in which by dissolving acid gas in the solvent, the volume of the liquid phase remains unchanged, i.e., this method neglects any volume expansion or compression caused by acid gas in the liquid phase. Our new developed set-up has paved a rout to tackle the third drawback [9].…”

“…The main contributions to the uncertainty of the solubility are attributed to errors in the pressure sensor for equilibrium cell and gas container (both are equal to ±4×10 -4 MPa), temperature sensors (±0.2 K), and scale for the amount of solvent in equilibrium cell (±0.0001 g). The volumes of the different parts of the set up were obtained by performing pressure swing experiments[9,19,29,30,31]. Several measurements using this method were done to obtain the volumes and uncertainties of the volumes of different parts of the setup.…”