Upgrading pyrolysis bio-oil through hydrodeoxygenation (HDO) using non-sulfided Fe-Co/SiO2 catalyst
| Autor: | James Julson, Muhammad Rabnawaz, Lin Wei, Shouyun Cheng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Acid value Renewable Energy Sustainability and the Environment Chemistry 020209 energy Energy Engineering and Power Technology 02 engineering and technology Crystal structure Catalysis Viscosity Fuel Technology Hydrocarbon Nuclear Energy and Engineering Chemical engineering 0202 electrical engineering electronic engineering information engineering Organic chemistry Hydrodeoxygenation Bimetallic strip Pyrolysis |
| Zdroj: | Energy Conversion and Management. 150:331-342 |
| ISSN: | 0196-8904 |
| Popis: | Hydrodeoxygenation (HDO) is an effective route to upgrade bio-oil to hydrocarbon bio-oil, but the development of efficient catalysts for bio-oil HDO still remains a challenge. In this study, non-sulfided Fe-Co/SiO 2 catalysts were used to upgrade bio-oil using HDO. A series of Fe-Co/SiO 2 catalysts with different Fe/Co mole ratios were prepared, characterized and evaluated. The Fe and/or Co loading did not change SiO 2 crystalline structure. The Fe and/or Co metals increased the amount and strength of Fe-Co/SiO 2 catalyst acidity. Physicochemical properties of upgraded bio-oils produced using Fe-Co/SiO 2 catalysts such as water content, total acid number, viscosity and higher heating values improved in comparison to raw bio-oil. Bimetallic Fe-Co/SiO 2 catalysts resulted in better HDO performance than monometallic Fe/SiO 2 or Co/SiO 2 catalysts. This was due to the synergistic effect of Fe and Co occurring on the SiO 2 support. Fe-Co/SiO 2 catalyst having medium amount of acidity was more effective for bio-oil upgrading. The highest hydrocarbons content produced using Fe-Co(1)/SiO 2 catalyst was 22.44%. The mechanism of bio-oil HDO on Fe-Co/SiO 2 catalysts is proposed. |
| Databáze: | OpenAIRE |
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