Production and characterization of bio-oil from hydrothermal liquefaction of microalgae Dunaliella tertiolecta cake

被引：355
|
作者：
Zou Shuping [1 ,2 ]
Wu Yulong [1 ]
Yang Mingde [1 ]
Kaleem, Imdad [3 ]
Chun, Li [2 ,3 ]
Tong, Junmao [4 ]
机构：
[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
[2] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
[3] Beijing Inst Technol, Sch Life Sci & Technol, Beijing 100081, Peoples R China
[4] Shihezi Univ, Food Coll, Shihezi 832000, Xinjiang, Peoples R China
来源：
ENERGY | 2010年 / 35卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Microalgae cake; Dunaliella tertiolecta; Bio-oil; Hydrothermal liquefaction; Composition; FAST PYROLYSIS; LIQUID FUEL; IDENTIFICATION; CONVERSION;
D O I：
10.1016/j.energy.2010.07.013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Renewable fuels are major alternatives to conventional fossil fuels. Biomass in the form of agricultural and industrial residues is fast becoming popular among new renewable energy sources. Hydrothermal liquefaction can thermochemically convert biomass residues into bio-oil. This work investigates the hydrothermal liquefaction of microalgae Dunaliella tertiolecta cake under various liquefaction temperatures, holding times, and catalyst dosages. A maximum bio-oil yield of 25.8% is obtained at a reaction temperature of 360 degrees C and a holding time of 50 min using 5% Na2CO3 as a catalyst. The various physical and chemical characteristics of bio-oil obtained under the most suitable conditions are determined, and a detailed chemical compositional analysis of bio-oil is performed using an elemental analyzer. Fourier transform-infrared spectroscopic analysis (FT-IR), and gas chromatography mass spectrometry (GC MS). The bio-oil is composed of fatty acids, fatty acid methyl esters, ketones, and aldehydes. Its empirical formula is CH1.44O0.29N0.05. and its heating value is 30.74 MJ/kg. The bio-oil product is a possible eco-friendly green biofuel and chemical. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5406 / 5411
页数：6
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