Abstract
Brown alga Saccharina japonica was pyrolyzed in a fixed bed reactor under conditions intended to maximize the yield of bio-oil and bio-char. The results revealed that the product distribution of bio-oil, bio-char, and gas was considerably influenced by the pyrolysis temperature (430-530 °C) and holding time (4-10min). The maximum yields of bio-oil and bio-char were approximately 48.4 and 32.3wt%, respectively, when prepared at 450 °C for 8min with a carrier gas flow rate of 2.2 cm/s. The fuel properties of dewatered S. japonica bio-oil (DSB) included higher heating value (HHV), kinematic viscosity, density, moisture and ash content, pH, and flash and pour point. The possibility of blending 5-20 vol% DSB with No. 6 fuel oil (Bunker C oil) was also examined. The physicochemical properties of the bio-char exhibited decreased carbon and HHV, and increased inorganic elements and surface area, with increasing pyrolysis temperature.
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This article is dedicated to Prof. Seong Ihl Woo on the occasion of his retirement from Korea Institute of Science and Technology (KAIST).
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Choi, J.H., Kim, SS., Suh, D.J. et al. Characterization of the bio-oil and bio-char produced by fixed bed pyrolysis of the brown alga Saccharina japonica . Korean J. Chem. Eng. 33, 2691–2698 (2016). https://doi.org/10.1007/s11814-016-0131-5
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DOI: https://doi.org/10.1007/s11814-016-0131-5