Feasibility and comparative studies of thermochemical liquefaction of Camellia oleifera cake in different supercritical organic solvents for producing bio-oil

被引：32
作者：
Chen, Hongmei
Zhai, Yunbo [1 ]
Xu, Bibo
Xiang, Bobin
Zhu, Lu
Li, Ping
Liu, Xiaoting
Li, Caiting
Zeng, Guangming
机构：
[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
来源：
ENERGY CONVERSION AND MANAGEMENT | 2015年 / 89卷
关键词：
Thermochemical liquefaction; Camellia oleifera cake; Bin-oil; Energy recovery ratio; Organic solvent; Heavy metal; BIODIESEL PRODUCTION; HYDROTHERMAL LIQUEFACTION; RISK-ASSESSMENT; SEWAGE-SLUDGE; ETHANOL; BIOMASS; PERFORMANCE; MICROALGAE; YIELD;
D O I：
10.1016/j.enconman.2014.11.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Thermochemical liquefaction of Camellia oleifera cake (COC) for producing bio-oil was conducted in supercritical methanol (SCML), ethanol (SCEL) and acetone (SCAL), respectively. GC-MS, elemental analysis and ICP-OES were used to characterize properties of bio-oil. Results showed that thermochemical liquefaction of COC was a prominent process for generating bio-oil. Increase of temperature was beneficial to the increase of bio-oil yield, and yield of bio-oil followed the sequence of SCAL > SCEL > SCML. In spite of the highest bio-oil yield, the lowest calorific value and highest contents of Zn, Pb, Cd, Ni, Fe, Mn, and Cr were found in bio-oil from SCAL. Though SCML has very similar bin-oil composition and calorific value with SCEL, higher bio-oil yield and lower contents of heavy metals could be obtained with SCEL, especially in bin-oil from SCEL at 300 degrees C. Moreover, the origin of ethanol could make the bin-oil product totally renewable. Therefore, liquefaction of COC in SCEL at 300 degrees C could have great potential in generating bin-oil. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：955 / 962
页数：8
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