Catalytic conversion of Laminaria japonica over microporous zeolites

Hyung Won Lee; Suek Joo Choi; Sung Hoon Park; Jong Ki Jeon; Sang Chul Jung; Sang Hoon Joo; Young Kwon Park

doi:10.1016/j.energy.2013.05.023

Catalytic conversion of Laminaria japonica over microporous zeolites

Hyung Won Lee
, Suek Joo Choi
, Sung Hoon Park
, Jong Ki Jeon
, Sang Chul Jung
, Sang Hoon Joo
, Young Kwon Park

School of Environmental Engineering

University of Seoul
Sunchon National University
Kongju National University
Ulsan National Institute of Science and Technology

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

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.

Original language	English
Pages (from-to)	2-6
Number of pages	5
Journal	Energy
Volume	66
DOIs	https://doi.org/10.1016/j.energy.2013.05.023
State	Published - 1 Mar 2014

Keywords

Aromatics
Catalytic pyrolysis
Laminaria japonica
Microporous zeolites

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10.1016/j.energy.2013.05.023

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title = "Catalytic conversion of Laminaria japonica over microporous zeolites",

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.",

keywords = "Aromatics, Catalytic pyrolysis, Laminaria japonica, Microporous zeolites",

author = "Lee, \{Hyung Won\} and Choi, \{Suek Joo\} and Park, \{Sung Hoon\} and Jeon, \{Jong Ki\} and Jung, \{Sang Chul\} and Joo, \{Sang Hoon\} and Park, \{Young Kwon\}",

year = "2014",

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doi = "10.1016/j.energy.2013.05.023",

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T1 - Catalytic conversion of Laminaria japonica over microporous zeolites

AU - Lee, Hyung Won

AU - Choi, Suek Joo

AU - Park, Sung Hoon

AU - Jeon, Jong Ki

AU - Jung, Sang Chul

AU - Joo, Sang Hoon

AU - Park, Young Kwon

PY - 2014/3/1

Y1 - 2014/3/1

N2 - 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.

AB - 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.

KW - Aromatics

KW - Catalytic pyrolysis

KW - Laminaria japonica

KW - Microporous zeolites

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DO - 10.1016/j.energy.2013.05.023

M3 - Article

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SN - 0360-5442

VL - 66

SP - 2

EP - 6

JO - Energy

JF - Energy

ER -

Catalytic conversion of Laminaria japonica over microporous zeolites

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Keywords

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