eprintid: 6897
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/68/97
datestamp: 2023-11-09 16:18:42
lastmod: 2023-11-09 16:18:42
status_changed: 2023-11-09 16:07:57
type: article
metadata_visibility: show
creators_name: Garg, S.
creators_name: Shariff, A.M.
creators_name: Shaikh, M.S.
creators_name: Lal, B.
creators_name: Aftab, A.
creators_name: Faiqa, N.
title: VLE of CO2 in aqueous potassium salt of L-phenylalanine: Experimental data and modeling using modified Kent-Eisenberg model
ispublished: pub
keywords: Amino acids; Atmospheric composition; Carbon dioxide; Equilibrium constants; Phase equilibria; Salts; Solubility; Solutions, Average absolute deviation; Effect of temperature; Kent-Eisenberg; l-Phenylalanine; Potassium salts; Prediction capability; Solubility of CO; Thermodynamic model, Loading
note: cited By 36
abstract: 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 200�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.
date: 2016
publisher: Elsevier B.V.
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979753689&doi=10.1016%2fj.jngse.2016.07.047&partnerID=40&md5=9319292f17930a96b9c04044bb3506cf
id_number: 10.1016/j.jngse.2016.07.047
full_text_status: none
publication: Journal of Natural Gas Science and Engineering
volume: 34
pagerange: 864-872
refereed: TRUE
issn: 18755100
citation:   Garg, S. and Shariff, A.M. and Shaikh, M.S. and Lal, B. and Aftab, A. and Faiqa, N.  (2016) VLE of CO2 in aqueous potassium salt of L-phenylalanine: Experimental data and modeling using modified Kent-Eisenberg model.  Journal of Natural Gas Science and Engineering, 34.  pp. 864-872.  ISSN 18755100