In situ ethyl ester production from wet algal biomass under microwave-mediated supercritical ethanol conditions

被引：61

作者：

Patil, Prafulla D. ^{[1
]}

Reddy, Harvind ^{[1
]}

Muppaneni, Tapaswy ^{[1
]}

Schaub, Tanner ^{[2
]}

Holguin, F. Omar ^{[2
]}

Cooke, Peter ^{[3
]}

Lammers, Peter ^{[4
]}

Nirmalakhandan, Nagamany ^{[5
]}

Li, Yin ^{[1
,6
]}

Lu, Xiuyang ^{[6
]}

Deng, Shuguang ^{[1
,6
]}

机构：

[1] New Mexico State Univ, Dept Chem Engn, Las Cruces, NM 88003 USA

[2] New Mexico State Univ, Chem Anal & Instrumentat Lab, Las Cruces, NM 88003 USA

[3] New Mexico State Univ, Elect Microscopy Lab, Las Cruces, NM 88003 USA

[4] New Mexico State Univ, Energy Res Lab, Las Cruces, NM 88003 USA

[5] New Mexico State Univ, Civil & Environm Engn Dept, Las Cruces, NM 88003 USA

[6] Zhejiang Univ, Dept Chem & Biol Engn, Key Lab Biomass Chem Engn, Minist Educ, Hangzhou 310027, Zhejiang, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 139卷

基金：

美国国家科学基金会;

关键词：

Microwave irradiation; Supercritical ethanolysis; Algal biomass; Biodiesel; In situ transesterification; BIODIESEL PRODUCTION; ASSISTED EXTRACTION; METHANOL; OIL; TRANSESTERIFICATION; TECHNOLOGY; FUEL;

D O I：

10.1016/j.biortech.2013.04.045

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

An in situ transesterification approach was demonstrated for converting lipid-rich wet algae (Nannochloropsis sauna) into fatty acid ethyl esters (FAEE) under microwave-mediated supercritical ethanol conditions, while preserving the nutrients and other valuable components in the algae. This single-step process can simultaneously and effectively extract the lipids from wet algae and transesterify them into crude biodiesel. Experimental runs were designed to optimize the process parameters and to evaluate their effects on algal biodiesel yield. The algal biomass characterization and algal biodiesel analysis were carried out by using various analytical instruments such as FTIR, SEM-EDS, TLC, GC-MS and transmission electron microscopy (TEM). The thermogravimetric analysis (TGA) under nitrogen and oxygen environments was also performed to examine the thermal and oxidative stability of ethyl esters produced from wet algae. This simple in situ transesterification process using a green solvent and catalyst-free approach can be a potentially efficient route for algal biodiesel production. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：308 / 315

页数：8

共 32 条

[1] Biodiesel from microalgae [J].

Chisti, Yusuf .

BIOTECHNOLOGY ADVANCES, 2007, 25 (03) :294-306

[2] Global Renewable Energy Projections [J].

Demirbas, A. .

ENERGY SOURCES PART B-ECONOMICS PLANNING AND POLICY, 2009, 4 (02) :212-224

[3]

EIA, INT EN OUTL EARL REL

[4] Biodiesel synthesis at high pressure and temperature: Analysis of energy consumption on industrial scale [J].

Glisic, Sandra ;

Lukic, Ivana ;

Skala, Dejan .

BIORESOURCE TECHNOLOGY, 2009, 100 (24) :6347-6354

[5]

Hatcher P.G., 2011, US Patent, Patent No. [US 8080679 B2, 8080679]

[6] Continuous production of biodiesel fuel from vegetable oil using supercritical methanol process [J].

He, Huayang ;

Wang, Tao ;

Zhu, Shenlin .

FUEL, 2007, 86 (03) :442-447

[7] Thermal stability of biodiesel in supercritical methanol [J].

Imahara, Hiroaki ;

Minami, Eiji ;

Hari, Shusaku ;

Saka, Shiro .

FUEL, 2008, 87 (01) :1-6

[8] Production of Biodiesel Fuel from the Microalga Schizochytrium limacinum by Direct Transesterification of Algal Biomass [J].

Johnson, Michael B. ;

Wen, Zhiyou .

ENERGY & FUELS, 2009, 23 (10) :5179-5183

[9]

Kiss GAC, 2000, J CHROMATOGR A, V889, P41, DOI 10.1016/S0021-9673(00)00440-4

[10]

Klass D.L., 1998, Biomass for Renewable Energy, Fuels, and Chemicals

← 1 2 3 4 →