Fast Pyrolysis of Macroalgae Saccharina japonica in a Bubbling Fluidized-Bed Reactor for Bio-Oil Production
- Fast Pyrolysis of Macroalgae Saccharina japonica in a Bubbling Fluidized-Bed Reactor for Bio-Oil Production
- Hoang Vu Ly; 김승수; 우희철; 최재형; 서동진; 김진수
- Bubbling fluidized bed; Fast pyrolysis; Macroalgae; Saccharina japonica
- Issue Date
- VOL 93, 1436-1446
- Macroalgae have recently attracted attention as a possible feedstock for bio-fuels. Saccharina japonica, a kind of macroalgae, can be converted into bio-oil, gas, and char through pyrolysis. In this study, fast pyrolysis of Saccharina japonica was performed in a bubbling fluidized-bed reactor under various conditions. The effects of pyrolysis temperature and fluidization velocity on product yield and the quality of bio-oil were systematically investigated. When the pyrolysis temperature increased from 350 C to 500 C, the bio-oil yield steadily decreased from 44.99 wt% to 26.67 wt%. The major compounds in the bio-oil were di-anhydromannitol and 2-methyl furyl ketone, showing the highest selectivities of 24.08% and 17.18%, respectively. The 13C NMR results showed that shorter aliphatic carbon and lower molecular weight compounds of alcohols, ketone, and their derivatives were generated during pyrolysis at higher temperatures due to secondary decomposition reactions. This research showed the feasibility of converting macroalgae biomass into bio-oil by fast pyrolysis.
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