TY  - JOUR
AV  - none
N1  - cited By 36
SP  - 864
TI  - VLE of CO2 in aqueous potassium salt of L-phenylalanine: Experimental data and modeling using modified Kent-Eisenberg model
SN  - 18755100
PB  - Elsevier B.V.
EP  - 872
N2  - In this study, vapor-liquid equilibrium (VLE) of CO2 in aqueous potassium salt of l-phenylalanine (K-Phe) was investigated. A high pressure solubility cell was used to measure the solubility of CO2 in aqueous solution of (10, 20 and 25) wt K-Phe at 303.15, 313.15 and 333.15 K over a CO2 pressure range of 200â??2500 kPa. Equilibrium CO2 solubility was defined in terms of CO2 loading (mole CO2/mole of amine). The effect of temperature, concentration and equilibrium CO2 pressure on CO2 loading was discussed. Experimental CO2 loading data in aqueous K-Phe solutions show that the solvent has good potential for CO2 capture systems. Also, a modified Kent-Eisenberg model was used to correlate the experimental CO2 solubility data and carbamate hydrolysis and amine deprotonation equilibrium constants were regressed as a function of temperature, concentration and equilibrium CO2 pressure. An average absolute deviation of 7.70 between experimental and predicted data indicated the good prediction capability of the applied thermodynamic model. © 2016 Elsevier B.V.
KW  - Amino acids; Atmospheric composition; Carbon dioxide; Equilibrium constants; Phase equilibria; Salts; Solubility; Solutions
KW  -  Average absolute deviation; Effect of temperature; Kent-Eisenberg; l-Phenylalanine; Potassium salts; Prediction capability; Solubility of CO; Thermodynamic model
KW  -  Loading
ID  - scholars6897
Y1  - 2016///
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979753689&doi=10.1016%2fj.jngse.2016.07.047&partnerID=40&md5=9319292f17930a96b9c04044bb3506cf
JF  - Journal of Natural Gas Science and Engineering
A1  - Garg, S.
A1  - Shariff, A.M.
A1  - Shaikh, M.S.
A1  - Lal, B.
A1  - Aftab, A.
A1  - Faiqa, N.
VL  - 34
ER  -