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

2011 ◽  
Vol 176-177 ◽  
pp. 244-252 ◽  
Author(s):  
C.B. Rasrendra ◽  
B. Girisuta ◽  
H.H. van de Bovenkamp ◽  
J.G.M. Winkelman ◽  
E.J. Leijenhorst ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Reactive Extraction ◽  
Pyrolysis Oil

scholarly journals Reactive Extraction of Lactic Acid, Formic Acid and Acetic Acid from Aqueous Solutions with Tri-n-octylamine/1-Octanol/n-Undecane

2019 ◽  
Vol 3 (2) ◽  
pp. 43 ◽  
Author(s):  
Nuttakul Mungma ◽  
Marlene Kienberger ◽  
Matthäus Siebenhofer
Keyword(s):  
Mass Transfer ◽  
Acetic Acid ◽  
Lactic Acid ◽  
Formic Acid ◽  
Fermentation Broth ◽  
Lactic Acid Production ◽  
Mass Action ◽  
Reactive Extraction ◽  
Technical Application ◽  
Pka Value

The present work develops the basics for the isolation of lactic acid, acetic acid and formic acid from a single as well as a mixed feed stream, as is present, for example, in fermentation broth for lactic acid production. Modelling of the phase equilibria data is performed using the law of mass action and shows that the acids are extracted according to their pka value, where formic acid is preferably extracted in comparison to lactic and acetic acid. Back-extraction was performed by 1 M NaHCO3 solution and shows the same tendency regarding the pka value. Based on lactic acid, the solvent phase composition, consisting of tri-n-octylamine/1-octanol/n-undecane, was optimized in terms of the distribution coefficient. The data clearly indicate that, compared to physical extraction, mass transfer can be massively enhanced by reactive extraction. With increasing tri-n-octylamine and 1-octanol concentration, the equilibrium constant increases. However, even when mass transfer increases, tri-n-octylamine concentrations above 40 wt%, lead to third phase formation, which needs to be prevented for technical application. The presented data are the basis for the transfer to liquid membrane permeation, which enables the handling of emulsion tending systems.

scholarly journals Esterification of Acetic Acid Via Semi-batch Reactive Distillation for Pyrolysis Oil Upgrading: Experimental Approach

2014 ◽  
Vol 52 ◽  
pp. 559-566 ◽  
Author(s):  
C. Prapainainar ◽  
C. Yotkamchonkun ◽  
S. Panjatharakul ◽  
T. Ratana ◽  
S. Seeyangnok ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Experimental Approach ◽  
Reactive Distillation ◽  
Pyrolysis Oil

Extraction of Phenol and Acetic Acid from Synthetic Bio-Oil by Ammonium Sulfate Solution

2013 ◽  
Vol 594-595 ◽  
pp. 286-290
Author(s):  
Noor Azean Mat Salleh ◽  
Bawadi Abdullah ◽  
Ruzaimah Nik Mohammad Kamil
Keyword(s):  
Acetic Acid ◽  
Ammonium Sulfate ◽  
System Development ◽  
Complex Mixture ◽  
Sulfate Solution ◽  
Extraction Process ◽  
Pyrolysis Oil ◽  
Energy Product ◽  
Bio Oil ◽  
Selection Of

This work aims to develop an extraction process for valuable chemicals such as phenolic bio-oil derived from pyrolysis techniques consists of a complex mixture of phenolic, organic acids, ketones and aldehydes compounds. Chemicals such as phenolic compound and acetic acid are attractive for extraction due to their high value compared to fuel and energy product. In this study, synthetic bio-oil is synthesized to represent the actual pyrolysis oil and selection of suitable salt concentrations has been investigated for systematic extraction system development. Synthetic bio-oil was characterized and the results found to be comparable with the properties of pyrolysis oil. Optimum ammonium sulfate concentration for extraction were in the range of less than 20 wt.%. The highest acetic acid yields was 0.1948 wt.% at 20 wt.% concentration of (NH4)2SO4. While, phenol was rich in organic phase with the highest yield at 30 wt.% of (NH4)2SO4.

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