Recovery of acetic acid from an aqueous pyrolysis oil phase by reactive extraction using tri-n-octylamine

C. B. Rasrendra, B. Girisuta, H. H. van de Bovenkamp, J. G. M. Winkelman, E. J. Leijenhorst, R. H. Venderbosch, M. Windt, D. Meier, H. J. Heeres*

*Corresponding author voor dit werk

OnderzoeksoutputAcademicpeer review

135 Citaten (Scopus)
136 Downloads (Pure)

Samenvatting

The application of reactive extraction to isolate organic acids, particularly acetic acid, from the aqueous stream of phase splitted pyrolysis oil using a long chain aliphatic tertiary amine is reported. Acetic acid recovery was optimized by selecting the proper amine and diluent combination and adjustment of the process conditions. The best results were obtained with tri-n-octylamine (TOA) in 2-ethyl-hexanol (40 wt%) with 84% acetic acid recovery at equilibrium conditions (room temperature). Other organic acids present in the feed (formic acid and glycolic acid) were also co-extracted (92% and 69% extraction efficiencies), as well as relatively non-polar compounds like substituted phenolics and ketones. The continuous reactive extraction process was successfully demonstrated in a centrifugal contactor separator (CCS) device, and acetic acid recoveries of 51% and 71% were obtained in a single CCS device and a two stage cross currently operated cascade, respectively. (C) 2011 Elsevier B.V. All rights reserved.

Originele taal-2English
Pagina's (van-tot)244-252
Aantal pagina's9
TijdschriftChemical Engineering Journal
Volume176
Nummer van het tijdschrift1
DOI's
StatusPublished - 1-dec.-2011

Vingerafdruk

Duik in de onderzoeksthema's van 'Recovery of acetic acid from an aqueous pyrolysis oil phase by reactive extraction using tri-n-octylamine'. Samen vormen ze een unieke vingerafdruk.

Citeer dit