TY - JOUR
T1 - Low-temperature catalytic hydrothermal treatment of wood biomass
T2 - Analysis of liquid products
AU - Karagöz, Selhan
AU - Bhaskar, Thallada
AU - Muto, Akinori
AU - Sakata, Yusaku
AU - Oshiki, Toshiyuki
AU - Kishimoto, Tamiya
N1 - Funding Information:
We are grateful to Mr. Hiroshi Nishino for valuable discussions during this work. Our special thanks to Yonebayashi Milling Co., Ishikawa Prefecture, Japan, for providing the biomass samples. We are thankful to Ministry of Education, Culture, Sports, Science and Technology, Japan and Centre of Excellence (COE) Program for the 21st Century on Strategic Solid Waste Management for Sustainable Society (SSWMSS) at Okayama University for partial financial support to carryout this research work.
PY - 2005/4/1
Y1 - 2005/4/1
N2 - Catalytic hydrothermal treatment of wood biomass was performed at 280°C for 15 min in the presence of alkaline solutions (NaOH, Na2CO 3, KOH and K2CO3). Oil products were extracted from both liquid and solid portion by different solvents and analyzed individually. The effect of base solutions on the yield of oil products and composition of oils obtained at different stages were discussed in detail. Based on the conversion and yield of liquid products, the catalytic activity can be ranked as follows: K2CO3 > KOH > Na 2CO3 > NaOH. In thermal run, the yield of solid residue was about 42% whereas it was 4.0% in the presence of K2CO 3. Catalytic hydrothermal treatment of biomass produced mainly phenolic compounds. In thermal run, furan derivatives were observed whereas these compounds could not be observed in catalytic runs. The volatility distribution of hydrocarbons (ether extract) was characterized by using C-NP gram and it showed that the majority of hydrocarbons for all runs including thermal were distributed boiling point range of n-C11. The products from hydrothermal treatment of wood biomass were analyzed using GC-MS, 1H NMR, 13C NMR, TOC and ion chromatograph.
AB - Catalytic hydrothermal treatment of wood biomass was performed at 280°C for 15 min in the presence of alkaline solutions (NaOH, Na2CO 3, KOH and K2CO3). Oil products were extracted from both liquid and solid portion by different solvents and analyzed individually. The effect of base solutions on the yield of oil products and composition of oils obtained at different stages were discussed in detail. Based on the conversion and yield of liquid products, the catalytic activity can be ranked as follows: K2CO3 > KOH > Na 2CO3 > NaOH. In thermal run, the yield of solid residue was about 42% whereas it was 4.0% in the presence of K2CO 3. Catalytic hydrothermal treatment of biomass produced mainly phenolic compounds. In thermal run, furan derivatives were observed whereas these compounds could not be observed in catalytic runs. The volatility distribution of hydrocarbons (ether extract) was characterized by using C-NP gram and it showed that the majority of hydrocarbons for all runs including thermal were distributed boiling point range of n-C11. The products from hydrothermal treatment of wood biomass were analyzed using GC-MS, 1H NMR, 13C NMR, TOC and ion chromatograph.
KW - Biomass
KW - Hydrothermal process
KW - Phenolic compounds
KW - Volatility distribution
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U2 - 10.1016/j.cej.2005.01.007
DO - 10.1016/j.cej.2005.01.007
M3 - Article
AN - SCOPUS:17044462176
VL - 108
SP - 127
EP - 137
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
SN - 1385-8947
IS - 1-2
ER -