Characterization of the bio-oil and bio-char produced by fixed bed pyrolysis of the brown alga Saccharina japonica

Title
Characterization of the bio-oil and bio-char produced by fixed bed pyrolysis of the brown alga Saccharina japonica
Authors
서동진최재형김승수장은정민경일우희철
Keywords
Fixed Bed Pyrolysis; Saccharina japonica; Bio-oil; Bio-char; Fuel property
Issue Date
2016-09
Publisher
The Korean journal of chemical engineering
Citation
VOL 33, NO 9-2698
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 A degrees 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 A degrees 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.
URI
http://pubs.kist.re.kr/handle/201004/64818
ISSN
0256-1115
Appears in Collections:
KIST Publication > Article
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