OP-II-3

RECOVERY OF ACETIC ACID FROM PYROLYSIS OILBY REACTIVE EXTRACTIONOP-III-A-9Rasrendra C.B. 1 , Girisuta B. 1 , Winkelman J.G.M. 1 , Leijenhorst E.J. 2 ,Venderbosch R.H. 2 , Windt M. 3 , Meier D. 3 , Heeres H.J. 11 Chemical Engineering Department, University of Groningen,Nijenborg 4 9747 AG Groningen, the Netherlands, h.j.heeres@rug.nl2 BTG Biomass Technology Group B.V., Josink Esweg 34 7545 PN Enschede,the Netherlands3 vTI-Institute of Wood Technology and Wood Biology, Leuschnerstr. 91 D-2103Hamburg, GermanyFast pyrolysis oil is a very attractive feedstock for the production of high addedvalue biobased chemicals, bio-fuels and energy using the biorefinery concept(Scheme 1).PrimaryProcessingSecondaryProcessingTertiaryProcessingApplicationsOil phaseUpgradingcatalytichydrotreatmentTransportation fuelsCombustion enginesFeedstock for refineryLignocellulosicBiomassFast-PyrolysisPyrolysis oil70 - 75 wt%PrimaryFractionationAqueous phaseChemicalsIsolationCarboxylic AcidsPhenolAldehydeFuranLevoglucosanChar10 – 15 wt%Gaseous10 – 15 wt%SugarsFermentationAlcoholic fuelsActivated carbonCarbon blackSoil improvementGasificationFuel gas/syngasCombustionHeat & ElectricityScheme 1. Biorefinery unit based on fast-pyrolysis of lignocellulosic biomassAn interesting high added value bulk-chemical from pyrolysis oil is acetic acid. Itis the major organic acid in fast pyrolysis oil with concentrations of up to 10 wt%,depending to the feedstock and process conditions [1]. Generally, reactive extractionis an attractive recovery technology for organic acids [2]. However, in previousstudies we have shown that the isolation of acetic acid from crude fast pyrolysis oil byreactive extraction with tertiary amines is cumbersome due to a relatively highsolubility of the extractant in the pyrolysis oil [3]. A better solution is to isolate the167