Abstract
Methoxy aromatic compounds are important chemical intermediates with wide applications in industry, agriculture, and medicine. In this study, the production of bio-oil rich in methoxy aromatic compounds via microwave pyrolysis of Eucalyptus pulverulenta (EP) branch was investigated in the temperature range of 300-500 ºC. The results showed that 400 °C was the optimum temperature to achieve the highest yield of bio-oil (28.4 wt.%), where the concentration of methoxy aromatics in the biooil reached to 70.4 area%. The addition of Na2CO3 and K2CO3 has led to increases in the bio-oil yields. During the microwave pyrolysis of EP, Na2CO3 and K2CO3 increased the selectivity of methoxy aromatics in the bio-oil, while NaOH showed a negative impact on the selectivity of methoxy aromatics. Based on the findings of the study, the reaction pathways of methoxy aromatic compound formation during pyrolysis were proposed.
Original language | English |
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Pages (from-to) | 964-976 |
Number of pages | 13 |
Journal | Fresenius Environmental Bulletin |
Volume | 29 |
Issue number | 2 |
Publication status | Published - Feb 2020 |
Externally published | Yes |
Keywords
- Alkali Catalyst
- Catalytic Microwave Pyrolysis
- Methoxy Aromatics
- Woody Biomass