Alkali catalyzed liquefaction of corncob in supercritical ethanol–water |
| |
| Affiliation: | 1. Biomass Processing Lab, Center of Biofuel and Biochemical Research, Mission Oriented Research (Green Technology), Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, 31750 Tronoh, Perak, Malaysia;2. Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan;1. Thermo-catalytic Processes Area (TPA), Bio-Fuels Division (BFD), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India;2. Academy of Scientific and Innovative Research (AcSIR), New Delhi, India;3. Department of Chemistry, A.S. College, Samrala Road, Khanna 141401, India;1. School of Resources, Environmental & Chemical Engineering and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, China;2. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China;3. Nanchang Water Industry Group Co., Ltd., Nanchang, China;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 |
| |
| Abstract: | Corncob liquefaction in supercritical ethanol–water was performed with and without the addition of an alkali catalyst by direct addition or biomass impregnation in a 250-cm3 batch reactor. The effects of temperature, solvent and alkali addition on the biomass conversion level and oil yield were investigated to find the optimum condition. For non-catalytic liquefaction using a 1:1 (v/v) ethanol: water ratio, a maximum oil yield and conversion level of 49.0% and 93.4%, respectively, were obtained at 340 °C. For alkali catalytic liquefaction, the oil yield with KOH addition (57.5%) was higher than that from KOH-impregnated corncob liquefaction (43.3%). The oil from liquefaction with KOH addition had higher heating value (26.7–35.3 MJ kg−1) than the corncob (19.1 MJ kg−1). The dominant components of the obtained oil were found by GC/MS analysis to be aldehyde, ester, phenol derivatives and aromatic compounds. |
| |
| Keywords: | Alkali Corncob Impregnation Liquefaction Ethanol–water |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
