31P-NMR analysis of bio-oils obtained from the pyrolysis of biomass
| Autor: | Rhett Mayor, Alexander W. Williams, Kasi David, John D. Muzzy, Arthur J. Ragauskas, Matyas Kosa, Matthew J. Realff |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
chemistry.chemical_classification
Biodiesel Materials science Renewable Energy Sustainability and the Environment Levoglucosan Carboxylic acid food and beverages Biomass complex mixtures chemistry.chemical_compound chemistry Biofuel Lignin Organic chemistry Cellulose Waste Management and Disposal Pyrolysis |
| Zdroj: | Biofuels. 1:839-845 |
| ISSN: | 1759-7277 1759-7269 |
| DOI: | 10.4155/bfs.10.57 |
| Popis: | Background: The use of 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane followed by 31P-NMR analysis has been frequently employed to quantitatively characterize the structure of hydroxyl groups in lignin and, more recently, biodiesel. This technique serves as a valuable tool to determine aliphatic hydroxyls, phenolics and carboxylic acid groups in lignin and aliphatic hydroxyl groups in partially substituted glycerols. Results: This study demonstrates the application of this analytical technique to pyrolysis oils to allow efficient analysis and identification of important functional groups present in bio-oils and the measurement of moisture content. Conclusion: Phosphitylation followed by 31P-NMR analysis was used to show that the moisture content of the loblolly pine bio-oil used in this study was 11.94%. The results also established that the bio-oils obtained from loblolly pine cellulose had higher levoglucosan content than the bio-oil obtained from the starting pine itself. In addition, the total ph... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|