Extraction of levulinic acid using tri-n-butyl phosphate and tri-n-octylamine in 1-octanol: Column design
Küçük Resim Yok
Tarih
2016
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The reactive extraction of levulinic acid using two different extractants [tri-n-butyl phosphate (TBP) and tri-n-octylamine (TOA)] dissolved in 1-octanol was investigated at 298 K. Using the equilibrium data, the distribution coefficient (K-D), extraction efficiency (%E) and loading ratios (Z) were calculated. TOA provided highest K-D values with 1-octanol. A maximum K-D was obtained as 9.571 using 0.689 mol/kg TOA while 90.54 % of the initial levulinic acid was extracted. Increasing the initial acid concentration resulted in a decrease in the extraction efficiency. Loading ratios were found to be less than 1 for TBP while both types, i.e. 1:1 and 2:1 acid-amine complexes were expected to form with TOA. The feasibility of the extraction process was assessed by calculating minimum solvent to feed ratio required for 90% recovery of levulinic acid, number of theoretical stages, height and diameter of the extraction column. (C) 2016 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Levulinic acid, Extraction, Column design, Equilibrium, Extractant, Diluent
Kaynak
Journal Of The Taiwan Institute Of Chemical Engineers
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
66
