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Madison, WI 53726-2398
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Title: Co-production of bioethanol and furfural from poplar wood via low temperature (≤90 °C) acid hydrotropic fractionation (AHF)

Source: Fuel. 254. 8 p.

Author(s)Zhu, Junjun ; Chen, Liheng ; Gleisner, Rolland ; Zhu, J.Y.

Publication Year: 2019  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-1B

Abstract: Poplar wood was fractionated into a water-insoluble cellulosic solid (WIS) fraction and a spent liquor that contained mainly dissolved ignin and xylan using an acid hydrotrope, p-Toluenesulfonic acid (p-TsOH), at low temperatures (≤90 °C). Reaction-kinetics-based severities were used to scale-up fractionation using 100 g wood at p-TsOH concentration 50 wt% and 90 °C for 112 min. The WIS and spent iquor from a scale-up run were used to produce bioethanol and furfural, respectively. At 15% WIS loading (w/v), maximal ethanol concentration was 52.47 g/L with a fermentation efficiency of 68.3%. Direct dehydration of the virgin spent liquor resulted in a maximum furfural concentration of 5.44 g/L at 68.4% yield. Precipitating lignin in the spent liquor increased furfural concentration to 6.18 g/L and yield to 77.7%. These results demonstrate the potential of acid hydrotrope fractionation for forest biorefinery.

Keywords: Lignocelluloses; acid hydrotropic fractionation; enzymatic hydrolysis and fermentation; biofuel; furfural

Publication Review Process: Formally Refereed

File size: 2,048 kb(s)

Date posted: 09/26/2019

This publication is also viewable on Treesearch:  view
RITS Product ID: 95874
Current FPL Scientist associated with this product
Zhu, JunYong
Research General Engineer

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