Solubility of CO2 in aqueous mixtures of diethanolamine with methyldiethanolamine and 2-amino-2-methyl-1-propanol

Solubility of CO2 in water+diethanolamine+N-methyldiethanolamine

“…In view of this, DEA based blends appear to be potential solvents for gas treating processes. The results of CO 2 solubility in DEA + MDEA blends have been reported so far by Austgen et al [3], Dawodu and Meisen [4] and MurrietaGuevera et al [5]. Austgen et al [3] reported CO 2 solubility in 2.0 M MDEA + 2.0 M DEA aqueous solutions at 313 and 353 K over the CO 2 partial pressure range of 0.136-310 kPa.…”

“…1 and 2. The experimental results of Murrieta-Guevera et al [5] are in good agreement with the model predictions for the VLE of CO 2 in 10 mass% DEA + 15 mass% MDEA, 10 mass% DEA + 20 mass% MDEA, Fig. 5, it is clear that above a certain CO 2 partial pressure, corresponding to a CO 2 loading of 0.5 mol of CO 2 /mol of amine, the CO 2 solubility in a 30 mass% aqueous MDEA is greater than that of DEA.…”

Gas solubility of H2S in aqueous solutions of N-methyldiethanolamine and diethanolamine with 2-amino-2-methyl-1-propanol at 313, 343, and 393K in the range 2.5–1036kPa

“…Although we have almost continuously used the experimental device for different solubility studies, some of them reported fairly recently [4], we decided that in order to establish the accuracy of the experimental data presented in this work with the experimental arrangement and procedure described, to measure the solubility of hydrogen sulfide in an aqueous solution of 35 wt.% MDEA with 10 wt.% DEA, at 313.15 K. The new data from this work agree well with the literature data [10,11]. Fig.…”

“…Fig. 3 depicts a comparison between the solubility of H 2 S considering a single alkanolamine at 323.15 K: DEA (35 and 50 wt.%) [12,13] and AMP (30 wt.%) [14]; at 313.15 K: MDEA (23 and 50 wt.%) [2]; blends of MDEA and DEA with a ratio of 20/10, 10/20, 15/10, and 35/10 wt.%, respectively [11], 32.5 wt.% MDEA and 12.5 wt.% DEA, and the latter system with 10 wt.% AMP. From this figure, it is possible to observe that for aqueous solutions of a single alkanolamine, the solubility of H 2 S increases as the concentration of the amines increases, e.g.…”

Equilibrium solubility of carbon dioxide in (2-amino-2-methyl-1-propanol+piperazine+water)

“…Thus, many reports on the physical properties of aqueous AMP [5][6][7][8] and aqueous amine blends containing AMP [9][10][11][12][13] that are deemed useful in the design of processes and equipment systems for CO 2 absorption have been made available in the technical literature. Likewise, data on (vapour + liquid) equilibria [14][15][16] and kinetics [17,18] and mass transport [19][20][21][22] of CO 2 absorption in blended alkanolamines containing AMP have also been reported.…”