The economic sustainability of lignocellulosic biorefineries can be significantly improved by co-producing added value chemicals together with common biofuels like ethanol. In this work a techno-economic analysis of a multiproduct biorefinery was carried out by means of process simulations, cost and profitability analysis. Alternative process flowsheets including the co-production of xylitol or furfural from C5sugars deriving from biomass hydrolysis were assessed and compared with the ethanol base case. A comparison between the purchase of enzymes and the on-site production of enzymes was also addressed. The lowest Payback Selling Price of ethanol was obtained for the case of xylitol co-production thanks to its higher added value.

Techno-economic assessment of a lignocellulosic biorefinery co-producing ethanol and xylitol or furfural

Giuliano, Aristide;Barletta, Diego;Poletto, Massimo
2018

Abstract

The economic sustainability of lignocellulosic biorefineries can be significantly improved by co-producing added value chemicals together with common biofuels like ethanol. In this work a techno-economic analysis of a multiproduct biorefinery was carried out by means of process simulations, cost and profitability analysis. Alternative process flowsheets including the co-production of xylitol or furfural from C5sugars deriving from biomass hydrolysis were assessed and compared with the ethanol base case. A comparison between the purchase of enzymes and the on-site production of enzymes was also addressed. The lowest Payback Selling Price of ethanol was obtained for the case of xylitol co-production thanks to its higher added value.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11386/4723959
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