Production of brown algae pyrolysis oils for liquid biofuels depending on the chemical pretreatment methods
- Production of brown algae pyrolysis oils for liquid biofuels depending on the chemical pretreatment methods
- 최준혁; 최재욱; 서동진; 하정명; 황지원; 정현욱; 이관영; 우희철
- Saccharina japonica; Macroalgae; Pyrolysis; Pretreatment; Sulfuric acid
- Issue Date
- Energy conversion and management
- VOL 86, 371-378
- Based on observations of rapidly growing biochar in fluidization beds, kelp (Saccharina japonica), a species of brown algae, was pretreated for the efficient operation of pyrolysis processes to produce pyrolysis oils. The removal of catalytically active inorganic minerals and the softening of polymeric seaweed structures were performed by means of chemical treatments, including a CaCl2 treatment to isolate valuable and sticky fucoidan and a sulfuric acid treatment to remove catalytically active minerals. The sulfuric acid pretreatment significantly reduced the inorganic elements but did not significantly affect the properties of the pyrolysis oil compared to the non-treated kelp pyrolysis oil. Whereas the non-treated kelp produced significantly large chunks of biochar, which hindered the continuous operation of pyrolysis, the kelp treated with sulfuric acid did not produce aggregated large particles of biochar, thereby offering a means of developing reliable continuous pyrolysis processes.
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