Catalytic Upgrading of Xylan Over Mesoporous Y Catalyst

Title
Catalytic Upgrading of Xylan Over Mesoporous Y Catalyst
Authors
김성수전보람박성훈전종기서동진김태완박영권
Keywords
Hemicellulose; Catalytic Pyrolysis; Mesoporous Y Zeolite; Py-GC/MS
Issue Date
2014-04
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 14, NO 4, 2925-2930
Abstract
In-situ catalytic cracking of xylan, a model compound of hemicellulose, was carried out using pyrolysis-gas chromatography/mass spectrometry over mesoporous Y for the first time. Experiments were conducted at three different temperatures, 400 ℃, 450 ℃, and 500 ℃, to investigate the effect of reaction temperature. Three different biomass-to-catalyst ratios, 1:1, 1:2, and 1:3, were tested at 500 ℃ to examine the effect of catalyst dose. In addition, the catalytic activity of mesoporous Y was compared with that of Al-MCM-41. The catalysts used were characterized by N2 adsorption–desorption, temperature programmed desorption of NH3, and X-ray diffraction. The main pyrolysis products of xylan were acids, hydrocarbons, phenolics, oxygenates, aromatics, and polycyclic aromatic hydrocarbons. Mesoporous Y, which has acid sites with larger quantity and stronger acidity than those of Al-MCM-41, was shown to enhance the quality of bio-oil to a larger extent, producing a larger quantity of high-value-added products, such as aromatics and furans.
URI
http://pubs.kist.re.kr/handle/201004/47946
ISSN
15334880
Appears in Collections:
KIST Publication > Article
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