Abstract
Biomass pretreatment is considered a key step in the 2nd generation biofuel production from lignocellulosic biomass. Research on conventional biomass pretreatment solvents has mainly been focused on carbohydrate conversion efficiency, while their hazardousness and/or carbon intensity were not comprehensively considered. Recent sustainability issues request further consideration for eco-friendly and sustainable alternatives like biomass-derived solvents. Carbohydrate and lignin-derived solvents have been proposed and investigated as green alternatives in many biomass processes. In this review, the applications of different types of biomass pretreatment solvents, including organic, ionic liquid, and deep eutectic solvents, are thoroughly discussed. The role of water as a co-solvent in these pretreatment processes is also reviewed. Finally, current research challenges and prospects of utilizing biomass-derived pretreatment solvents for pretreatment are discussed. Given bioethanol's market potential and increasing public awareness about environmental concerns, it will be a priority adopting sustainable and green biomass pretreatment solvents in biorefinery.
| Original language | English |
|---|---|
| Article number | 128280 |
| Journal | Bioresource Technology |
| Volume | 368 |
| DOIs | |
| State | Published - Jan 2023 |
Funding
Oak Ridge National Laboratory (ORNL) is managed by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. This research is funded in part by U.S. Department of Energy Office of Science, Office of Biological and Environmental Research under the Genomic Science Program (FWP ERKP752). This manuscript is also supported by USDA NIFA McIntire Stennis Program (7002095). The United States Government and the publisher, by accepting the article for publication, acknowledge that the United States government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this article or allow others to do so for United States government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). The views and opinions of the authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Neither the United States government nor any agency thereof or any of their employees make any warranty, expressed or implied, or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed or represent that its use would not infringe privately owned rights.
| Funders | Funder number |
|---|---|
| DOE Public Access Plan | |
| United States Government | |
| U.S. Department of Energy | |
| National Institute of Food and Agriculture | 7002095 |
| Office of Science | |
| Biological and Environmental Research | FWP ERKP752 |
| Oak Ridge National Laboratory | |
| UT-Battelle | DE-AC05-00OR22725 |
Keywords
- Biomass-derived solvent
- Deep eutectic solvent
- Ionic liquid
- Organosolv
- Pretreatment
