Kim, Seong-Soo Jun, Bo Ram Park, Sung Hoon Jeon, Jong-Ki Suh, Dong Jin Kim, Tae-Wan Park, Young-Kwon 2024-01-20T10:03:08Z 2024-01-20T10:03:08Z 2021-09-05 2014-04 1533-4880 https://pubs.kist.re.kr/handle/201004/126949 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 degrees C, 450 degrees C, and 500 degrees C, to investigate the effect of reaction temperature. Three different biomass-to-catalyst ratios, 1:1, 1:2, and 1:3, were tested at 500 degrees C 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 N-2 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. English AMER SCIENTIFIC PUBLISHERS FAST PYROLYSIS BIOMASS DEOXYGENATION MISCANTHUS CONVERSION AROMATICS CELLULOSE OLEFINS VAPORS Catalytic Upgrading of Xylan Over Mesoporous Y Catalyst Article 10.1166/jnn.2014.8622 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.14, no.4, pp.2925 - 2930 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 14 4 2925 2930 scie scopus 000332226600033 2-s2.0-84897749987 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article FAST PYROLYSIS BIOMASS DEOXYGENATION MISCANTHUS CONVERSION AROMATICS CELLULOSE OLEFINS VAPORS Hemicellulose Catalytic Pyrolysis Mesoporous Y Zeolite Py-GC/MS