TY - JOUR
T1 - Choline Chloride Urea Effect on Liquid-Liquid Equilibria of 5-Hydroxymethylfurfural-Water-Organic Solvent Systems in the Absence and Presence of Sodium Chloride
AU - Altway, Saidah
AU - Yuan, Mengqi
AU - Pujar, Snehal C.
AU - Azhar, Badril
AU - Tiwikrama, Ardila Hayu
AU - De Haan, André B.
N1 - Publisher Copyright:
© 2021 American Chemical Society.
PY - 2021/12/9
Y1 - 2021/12/9
N2 - Deep eutectic solvent (DES) has demonstrated its ability to improve the yield and selectivity in the 5-hydroxymethylfurfural (HMF) production process. Liquid-liquid extraction is a beneficial process in HMF production to recover HMF from the reaction medium. In the present study, the effect of DES (choline chloride urea) on the liquid-liquid equilibria (LLE) of HMF-water-organic solvent (methyl isobutyl ketone (MIBK) or 2-pentanol) systems in the absence and presence of sodium chloride (NaCl) was investigated at 313.15 K and atmospheric pressure (0.1 MPa). The tie-lines of the multicomponent systems were measured using several analytical methods. According to the experimental results, the extraction performance decreased with an increase in DES concentration. However, the addition of 10 wt % NaCl into the HMF aqueous DES solution can induce stronger liquid-liquid phase splitting, enhancing the separation factors and distribution coefficients of HMF by around 2.7 and 1.6 times, respectively. Additionally, MIBK showed better extraction performance in the presence of DES and NaCl with the separation factors 2.6 times higher than those of 2-pentanol and the HMF distribution coefficients above 1.8. The LLE of the multicomponent systems were correlated well with the nonrandom two-liquid (NRTL) model.
AB - Deep eutectic solvent (DES) has demonstrated its ability to improve the yield and selectivity in the 5-hydroxymethylfurfural (HMF) production process. Liquid-liquid extraction is a beneficial process in HMF production to recover HMF from the reaction medium. In the present study, the effect of DES (choline chloride urea) on the liquid-liquid equilibria (LLE) of HMF-water-organic solvent (methyl isobutyl ketone (MIBK) or 2-pentanol) systems in the absence and presence of sodium chloride (NaCl) was investigated at 313.15 K and atmospheric pressure (0.1 MPa). The tie-lines of the multicomponent systems were measured using several analytical methods. According to the experimental results, the extraction performance decreased with an increase in DES concentration. However, the addition of 10 wt % NaCl into the HMF aqueous DES solution can induce stronger liquid-liquid phase splitting, enhancing the separation factors and distribution coefficients of HMF by around 2.7 and 1.6 times, respectively. Additionally, MIBK showed better extraction performance in the presence of DES and NaCl with the separation factors 2.6 times higher than those of 2-pentanol and the HMF distribution coefficients above 1.8. The LLE of the multicomponent systems were correlated well with the nonrandom two-liquid (NRTL) model.
UR - http://www.scopus.com/inward/record.url?scp=85120379638&partnerID=8YFLogxK
U2 - 10.1021/acs.jced.1c00657
DO - 10.1021/acs.jced.1c00657
M3 - Article
AN - SCOPUS:85120379638
SN - 0021-9568
VL - 66
SP - 4684
EP - 4696
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
IS - 12
ER -