Journal
BIORESOURCE TECHNOLOGY
Volume 331, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2021.125009
Keywords
Process design; Integration; Climate change; Process evaluation; Carbon efficiency; Economic viability
Funding
- C1 Gas Refinery Program through the National Research Foundation of Korea - Ministry of Science, ICT & Future Planning [2015M3D3A1A01064929]
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An integrated strategy was developed to utilize different fractions of biomass, producing 1,6-hexanediol, furfural, and high-purity lignin, with heat integration to mitigate energy challenges. Techno-economic analysis showed favorable economics for the process, with sensitivity to economic parameters affecting the minimum selling price of 1,6-hexanediol.
An integrated strategy of multiple catalytic conversions was developed to completely utilize three major fractions of biomass, thereby increasing the revenue from lignocellulosic biomass (white birch). Cellulose was converted into 1,6-hexanediol (1,6-HDO) with a yield of 21.8% via a series of catalytic conversions, hemicellulose was converted into furfural with a yield of 87.2% via dehydration, and lignin was purified into high-purity lignin with a yield of 71.7% via two-step purification. Heat integration was performed to mitigate the challenges associated with the large energy requirements of the process. Additionally, a techno-economic analysis was conducted to investigate the feasibility of the proposed process. The minimum selling price (MSP) of 1,6-HDO is estimated to be $3,922/ton, meaning that the economics of the proposed process are favorable compared to petroleumderived 1,6-HDO production ($4,400/ton). The effect of economic parameters on the MSP of 1,6-HDO was also investigated via a wide array of sensitivity analyses.
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