| Full text | |
| Author(s): |
Sganzerla, William Gustavo
[1]
;
Lachos-Perez, Daniel
[2]
;
Buller, Luz Selene
[3]
;
Zabot, Giovani L.
[4]
;
Forster-Carneiro, Tania
[1]
Total Authors: 5
|
| Affiliation: | [1] Univ Estadual Campinas, Sch Food Engn FEA, UNICAMP, Campinas, SP - Brazil
[2] Fed Univ Santa Maria UFSM, Dept Chem Engn, Santa Maria, RS - Brazil
[3] Univ Estadual Campinas, Sch Food Engn, Monteiro Lobato St 80, BR-13083862 Campinas - Brazil
[4] Fed Univ Santa Maria UFSM, Lab Agroind Proc Engn, Cachoeira Do Sul, RS - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR; v. 16, n. 2 DEC 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
The value of lignocellulose residues for green technologies has been growing, but biomass pretreatment is still an economic challenge. In this case study, a cost analysis of subcritical water pretreatment (SCWP) of sugarcane by-products for ethanol production was conducted. The proposed industrial scheme is attached to a Brazilian sugarcane mill, which generates a surplus of bagasse. Seven scenarios were simulated to address the prospects of the implementation of the process in the mill. The fermentation of sugarcane bagasse hydrolysate with Scheffersomyces stipitis upgraded the ethanol yield. The fixed capital investment of the industrial process was approximately US\$27 million and 35% of this was associated with the SCWP. The highest ethanol yield was obtained for the process operated with hydrolysate from sugarcane bagasse (6740.5 kg ethanol day(-1)), which is associated with the high hemicellulose content in the bagasse composition compared with straw. The cost difference revealed that the fixed capital investment and utilities were the largest expenses for process implementation and operation. The simulated process reached 5.45 US\$ L-1 as the lowest cost of manufacturing. However, this cost is approximately 10-fold higher than the market price for ethanol in Brazil. In conclusion, the SCWP of sugarcane straw and bagasse demands significant technical improvement before scaling up to the industrial scale for bioethanol production. (c) 2021 Society of Chemical Industry and John Wiley \& Sons, Ltd (AU) | |
| FAPESP's process: | 18/14938-4 - Waste2energy: integration of supercritical technologies and anaerobic digestion through an automated system for the production of biofuel precursors |
| Grantee: | Tânia Forster Carneiro |
| Support Opportunities: | Research Grants - Young Investigators Grants - Phase 2 |
| FAPESP's process: | 20/10323-5 - Life cycle and technical-financial assessment of the integration of anaerobic digestion and hydrothermal technologies for waste recovery |
| Grantee: | Luz Selene Buller |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |
| FAPESP's process: | 19/26925-7 - Development of an automated system for biofuel precursor production using sub-critical technology |
| Grantee: | William Gustavo Sganzerla |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |
| FAPESP's process: | 18/05999-0 - Waste2energy: integration of the supercritical and anaerobic digestion technologies for the management of water and food waste |
| Grantee: | Tânia Forster Carneiro |
| Support Opportunities: | Regular Research Grants |