Dimethyl Sulfoxide Assisted Ionic Liquid Pretreatment of Switchgrass for Isoprenol Production
| Autor: | Qipeng Yuan, Steven W. Singer, Gang Cheng, Blake A. Simmons, Taek Soon Lee, Wenwen Zhao, Seema Singh, Shizeng Wang |
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| Rok vydání: | 2018 |
| Předmět: |
Aqueous solution
010405 organic chemistry Renewable Energy Sustainability and the Environment Chemistry Dimethyl sulfoxide General Chemical Engineering food and beverages Biomass 02 engineering and technology General Chemistry Isoprenol 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Adsorption Ionic liquid Environmental Chemistry Lignin Cellulose 0210 nano-technology Nuclear chemistry |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:4354-4361 |
| ISSN: | 2168-0485 |
| Popis: | The production cost and viscosity of certain ionic liquids (ILs) are among the major factors preventing the establishment of economically viable IL-based biomass pretreatment technologies. Recently, mixtures of an IL with an organic solvent have been proposed for cellulose processing and biomass pretreatment. Dimethyl sulfoxide (DMSO) is an inexpensive organic solvent that is industrially produced from lignin, a byproduct of the pulping process. We carry out a mechanistic study of DMSO-assisted IL pretreatment of switchgrass. The physical structures of biomass samples are studied by X-ray diffraction (XRD), N2 adsorption analysis, and small angle neutron scattering (SANS). Both dry and aqueous suspensions of biomass samples are measured by SANS which provides unique information on biomass pretreatment. A mixture of 42 wt % [C2C1Im][OAc] and 58 wt % DMSO is proposed as the optimal pretreatment solution, and the recycling and reuse of the mixture of solvents are also studied. The fermentability of the hydro... |
| Databáze: | OpenAIRE |
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