Ethanol production from residual lignocellulosic fibers generated through the steam treatment of whole sorghum biomass
| Autor: | Jérémie Damay, Olivier Lalonde, Sophie Beauchemin, Jean-Michel Lavoie, Jean-Baptiste Beigbeder, Iulian-Zoltan Boboescu, James Kong Win Chang, Xavier Duret |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Environmental Engineering Dry basis Biomass Bioengineering 010501 environmental sciences Lignin 01 natural sciences Hydrolysis chemistry.chemical_compound 010608 biotechnology Ethanol fuel Cellulose Waste Management and Disposal Sorghum 0105 earth and related environmental sciences Steam explosion Ethanol Renewable Energy Sustainability and the Environment food and beverages General Medicine Pulp and paper industry Cellulose hydrolysis Steam Whole sweet sorghum chemistry Delignification Cellulosic ethanol Lignocellulosic ethanol Fermentation Sweet sorghum |
| Zdroj: | Bioresource Technology, 292 Bioresource Technology 292 (2019) |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2019.121975 |
| Popis: | Cellulosic ethanol could play a major role in the upcoming circular-economy once the process complexity, low carbohydrate extraction yields and high costs are resolved. To this purpose, different steam-treatment severity factors were employed on whole sweet sorghum biomass, followed by the delignification and hydrolysis of resulted lignocellulose fibers. A modified ASTM International (American Society for Testing and Material) standard cellulose hydrolysis approach as well as a newly developed SACH (Sulfuric Acid Cellulose Hydrolysis) process were used, recovering up to 24.3 wt% of cellulosic carbohydrates. This amounted to a total extractable and constitutive carbohydrate recovery of 51.7 wt% (dry basis) when a mild steam-treatment of whole sorghum biomass and the SACH cellulose hydrolysis were employed. An ethanol potential of 6378 L/ha/year was determined, comparable to values obtained from biomass such as sugarcane in warmer climates, supporting thus the opportunity of implementing this novel approach on a wider scale. |
| Databáze: | OpenAIRE |
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