Journal
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume 60, Issue 27, Pages 9833-9850Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.1c00069
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Funding
- FAPESP (Sao Paulo State Research Funding Agency, Brazil) [2016/10636-8, 2016/14852-7, 2019/15851-2, 2020/15450-5, 2017/13349-2]
- CNPq (National Council for Scientific and Technological Development, Brazil)
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior.Brasil (CAPES) [001]
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Research proposed two processes for producing biosurfactants from sugarcane bagasse, with the second process showing superior economic and environmental performance. Global sensitivity and uncertainty analyses indicated the need to focus on the performance and scaleup of bioreactors and ultrafiltration processes.
In a carbon-neutral economy, biorefineries may replace oil refineries, providing materials and molecules. One of these products are biosurfactants (BSs), which can be produced from sugarcane bagasse. Two different processes for BS production were proposed and evaluated from a technoeconomic environmental perspective. Global sensitivity and uncertainty analyses (GSA and UA) assessed the most influential variables and the uncertainties regarding the minimum BS selling price (MBSSP), together with several environmental metrics. Both processes presented positive economic performance. The analysis showed that the second scenario (using liquid hot water pretreatment without detoxification and BS recovery by two steps of ultrafiltration) presented superior economic and environmental performance. The second scenario had a 59.7% probability of having a MBSSP below 20 $/kg, against 47.1% for the first one. GSA showed that effort should be focused on decreasing uncertainty regarding the bioreactor performance and scaleup (for both scenarios) and the ultrafiltration performance (for the second scenario).
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