Effects of solvents and catalysts in liquefaction of pinewood sawdust for the production of bio-oils |
| |
| Affiliation: | 1. Department of Chemical Engineering, University of New Brunswick, Fredericton, New Brunswick E3B 5A3, Canada;2. Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science of Northwest University, Xi''an, Shaanxi 710069, PR China;1. Dalian Polytechnic University, Dalian 116034, China.;2. State Key Laboratory of Microbial Technology, Shandong University, Jinan 250100, China.;1. School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore;2. School of Nano-Bioscience and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798, Republic of Korea;1. Clean Energy Research Center, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea;2. School of Mechanical Engineering, Sungkyunkwan University, 2066, Sebu-Ro, Jangan-Gu, Suwon, Gyeong Gi-Do 440-746, Republic of Korea;3. Sungkyun Advanced Institute of Nano Technology (SAINT), 2066, Seobu-Ro, Jangan-Gu, Suwon, Gyeong Gi-Do 440-746, Republic of Korea;1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, PR China;2. Key Laboratory of Clean Energy of Liaoning, College of Energy and Environment, Shenyang Aerospace University, Shenyang 110136, PR China;1. Department of Occupational Health and Safety, Karabük University, 78050 Karabük, Turkey;2. Department of Environmental Engineering, Karabük University, 78050 Karabük, Turkey;3. Department of Polymer Engineering, Karabük University, 78050 Karabük, Turkey |
| |
| Abstract: | Liquefaction of biomass with proper solvents and catalysts is a promising process to produce liquid biofuels and valuable chemicals. In this study, pinewood sawdust was liquefied in the presence of various supercritical solvents (carbon dioxide, water, acetone, and ethanol) and catalysts (alkali salts and acidic zeolites). The liquid, gas and solid products were analyzed using GC–MS, FT-IR, elemental analyzer, 1H NMR, 13C NMR. The experimental results showed that both solvent and catalyst can significantly improve the liquefaction process by increasing the yield of liquid oil and suppressing the formation of solid residue. K2CO3 showed the best performance by doubling the yield of bio oil. Meanwhile, the maximum bio-oil yield (30.8 wt%) and the minimum solid residue yield (28.9 wt%) were obtained when ethanol was employed as the solvent. Solvents can also strongly affect the distribution of liquid products. 2,4,5,7-tetramethyl-phenanthrene and bis(2-ethylhexyl) phthalate were the premier compounds in liquid product as supercritical carbon dioxide is used as solvent while 2-methyl-naphthalene became the main composition when water is used as solvent. |
| |
| Keywords: | Biomass Liquefaction Bio-oils Supercritical carbon dioxide Catalytic conversion |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
