Sugarcane bagasse valorization to xylitol: Techno?economic and life cycle assessment

A detailed techno-economic analysis and life cycle assessment (LCA) of a novel bio-refinery that produces xylitol from sugarcane bagasse are provided. The proposed process includes dilute acid pretreatment in pressurized conditions followed by fermentation (upstream section). broth is then sent for separation purification to the downstream section. Calculations performed plant with 4 t/h dry throughput. With yield 0.54 g per xylose, produced 437.4 kg/h xylitol. Upstream data adapted experimental studies, while ASPEN PLUS® flowsheet simulation used obtain production facility assumed be annexed an existing sugar mill India. total utility requirement reduced using heat integration strategies. Cradle-to-gate scope considered LCA 1 kg taken as functional unit. product cost calculated 230 INR/kg (US$3.17/kg). For year payback period, selling price must 450 (US$6.2/kg). sections major components cost. results show greenhouse gas emissions 2.759 CO2 eq. electricity within identified source emissions, reduction duration key factor. identify opportunities improve economic well environmental standpoint. © 2022 Society Chemical Industry John Wiley & Sons, Ltd.