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Joo, Sang Hoon
Nanomaterials & Catalysis Lab
Research Interests
  • Catalyst, energy conversion, fuel cells, electrolyzer, ORR, HER, OER

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Catalytic conversion of Laminaria japonica over microporous zeolites

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Title
Catalytic conversion of Laminaria japonica over microporous zeolites
Author
Lee, Hyung WonChoi, Suek JooPark, Sung HoonJeon, Jong-KiJung, Sang-ChulJoo, Sang HoonPark, Young-Kwon
Keywords
Aromatics; Catalytic pyrolysis; Laminaria japonica; Microporous zeolites
Issue Date
201403
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ENERGY, v.66, no., pp.2 - 6
Abstract
The catalytic pyrolysis of Laminaria japonica was carried out over four different microporous zeolite catalysts, HZSM-5 (SiO2/Al2O3 = 23, 80), HBETA (SiO2/Al2O3 = 25) and HY (SiO2/Al2O3 = 30). The effects of the catalysts on the properties of the resulting pyrolysis products were examined. Py-GC/MS (pyrolysis gas chromatography/mass spectrometry) was used to compare the composition of the bio-oils obtained from the non-catalytic and catalytic pyrolysis. Catalytic upgrading decreased the oil yield but increased the gas yield. The composition of bio-oil was changed to a large extent by catalytic upgrading. Among the oxygenate species contained in the bio-oil, the contents of 1,5-anhydro-d-mannitol and 1,4-anhydro-d-galacitol were reduced considerably by catalytic upgrading, whereas the proportions of furans and cyclopentanones were increased. The formation of high value-added aromatics was enhanced considerably by catalytic upgrading, which was attributed to the acid characteristics of the zeolite catalysts. HZSM-5 (SiO2/Al2O3 = 23), which had the strongest acid sites, showed the highest selectivity for aromatics production.
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DOI
http://dx.doi.org/10.1016/j.energy.2013.05.023
ISSN
0360-5442
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