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Separation of Acetic Acid from Simulated Biomass Hydrolysates Containing Furans by Emulsion Liquid Membranes with an Organophosphorous Extractant

유기인산계 추출제를 이용한 에멀젼형 액막법에 의해 푸란유도체를 함유하는 모사 바이오매스 가수분해액으로부터 초산의 분리

  • Lee, Sang Cheol (Department of Chemical Engineering, Kunsan National University)
  • 이상철 (군산대학교 나노화학공학과)
  • Received : 2018.07.28
  • Accepted : 2018.08.31
  • Published : 2018.10.01

Abstract

The selective removal and recovery of fermentation inhibitors during purification of sugars from biomass hydrolysates can increase the economic efficiency of the entire process to produce bioalcohol from lignocellulosic biomass. This study investigated the effect of furans in phenols-free biomass hydrolysate on acetic acid extraction in an emulsion liquid membrane system. Under specific operating conditions, more than 99% of acetic acid could be extracted within 5 minutes, and the degrees of extraction of furfural and 5-hydroxymethylfurfural were about 10% and 4%, respectively. The extraction rate of acetic acid was also lower at a higher initial concentration of furfural in the feed phase, which was greater for furfural than 5-hydroxymethylfurfural. Thus, if furfural is first removed from the hydrolysate prior to acetic acid extraction, emulsion liquid membrane would be a more economically efficient way of removing acetic acid.

Keywords

Biomass hydrolysate;Emulsion liquid membrane;Acetic acid;Furans;Extraction

Acknowledgement

Supported by : 한국연구재단

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