Optimization of direct conversion of wet algae to biodiesel under supercritical methanol conditions

Patil, Prafulla D.; Gude, Veera Gnaneswar; Mannarswamy, Aravind; Deng, Shuguang; Cooke, Peter; Munson-McGee, Stuart; Rhodes, Isaac; Lammers, Pete; Nirmalakhandan, Nagamany

doi:10.1016/j.biortech.2010.06.031

Optimization of direct conversion of wet algae to biodiesel under supercritical methanol conditions

Journal Article · Sat Jan 01 04:00:00 EST 2011 · Bioresource Technology

DOI:https://doi.org/10.1016/j.biortech.2010.06.031· OSTI ID:1097040

Patil, Prafulla D. ^[1]; Gude, Veera Gnaneswar; Mannarswamy, Aravind; Deng, Shuguang; Cooke, Peter; Munson-McGee, Stuart; Rhodes, Isaac; Lammers, Pete; Nirmalakhandan, Nagamany

New Mexico State University

This study demonstrated a one-step process for direct liquefaction and conversion of wet algal biomass containing about 90% of water to biodiesel under supercritical methanol conditions. This one-step process enables simultaneous extraction and transesterification of wet algal biomass. The process conditions are milder than those required for pyrolysis and prevent the formation of by-products. In the proposed process, fatty acid methyl esters (FAMEs) can be produced from polar phospholipids, free fatty acids, and triglycerides. A response surface methodology (RSM) was used to analyze the influence of the three process variables, namely, the wet algae to methanol (wt./vol.) ratio, the reaction temperature, and the reaction time, on the FAMEs conversion. Algal biodiesel samples were analyzed by ATR-FTIR and GC-MS. Based on the experimental analysis and RSM study, optimal conditions for this process are reported as: wet algae to methanol (wt./vol.) ratio of around 1:9, reaction temperature and time of about 255 °C, and 25 min respectively. This single-step process can potentially be an energy efficient and economical route for algal biodiesel production.

Research Organization:: New Mexico State Univ., Las Cruces, NM (United States)

Sponsoring Organization:: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)

DOE Contract Number:: EE0003046

OSTI ID:: 1097040

Report Number(s):: DOE-DANF-0003046-K24; 28302-K

Journal Information:: Bioresource Technology, Journal Name: Bioresource Technology Journal Issue: 1 Vol. 102; ISSN 0960-8524

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

References (16)

Biodiesel production by microalgal biotechnology Huang, GuanHua; Chen, Feng; Wei, Dong Applied Energy, Vol. 87, Issue 1 https://doi.org/10.1016/j.apenergy.2009.06.016	journal	January 2010
Supercritical ethanol technology for the production of biodiesel: Process optimization studies Gui, Meei Mei; Lee, Keat Teong; Bhatia, Subhash The Journal of Supercritical Fluids, Vol. 49, Issue 2 https://doi.org/10.1016/j.supflu.2008.12.014	journal	June 2009
Production of Biodiesel Fuel from the Microalga Schizochytrium limacinum by Direct Transesterification of Algal Biomass Johnson, Michael B.; Wen, Zhiyou Energy & Fuels, Vol. 23, Issue 10 https://doi.org/10.1021/ef900704h	journal	October 2009
Lipid analysis in Haematococcus pluvialis to assess its potential use as a biodiesel feedstock Damiani, M. Cecilia; Popovich, Cecilia A.; Constenla, Diana Bioresource Technology, Vol. 101, Issue 11 https://doi.org/10.1016/j.biortech.2009.12.136	journal	June 2010
Revisiting the formation of *trans* isomers during partial hydrogenation of triacylglycerol oils Dijkstra, Albert J. European Journal of Lipid Science and Technology, Vol. 108, Issue 3 https://doi.org/10.1002/ejlt.200500335	journal	March 2006
A process for high yield and scaleable recovery of high purity eicosapentaenoic acid esters from microalgae and fish oil Belarbi, El Hassan; Molina, Emilio; Chisti, Yusuf Enzyme and Microbial Technology, Vol. 26, Issue 7 https://doi.org/10.1016/S0141-0229(99)00191-X	journal	April 2000
Biodiesel from microalgae Chisti, Yusuf Biotechnology Advances, Vol. 25, Issue 3, p. 294-306 https://doi.org/10.1016/j.biotechadv.2007.02.001	journal	May 2007
Biodiesel production from rice bran oil and supercritical methanol Kasim, Novy Srihartati; Tsai, Tsung-Han; Gunawan, Setiyo Bioresource Technology, Vol. 100, Issue 8 https://doi.org/10.1016/j.biortech.2008.11.041	journal	April 2009
Biodiesel fuel from rapeseed oil as prepared in supercritical methanol Saka, S.; Kusdiana, D. Fuel, Vol. 80, Issue 2 https://doi.org/10.1016/S0016-2361(00)00083-1	journal	January 2001
Thermal stability of biodiesel in supercritical methanol Imahara, Hiroaki; Minami, Eiji; Hari, Shusaku Fuel, Vol. 87, Issue 1 https://doi.org/10.1016/j.fuel.2007.04.003	journal	January 2008
Effects of water on biodiesel fuel production by supercritical methanol treatment Kusdiana, Dadan; Saka, Shiro Bioresource Technology, Vol. 91, Issue 3 https://doi.org/10.1016/S0960-8524(03)00201-3	journal	February 2004
Producing Docosahexaenoic Acid (DHA)-Rich Algae from Biodiesel-Derived Crude Glycerol: Effects of Impurities on DHA Production and Algal Biomass Composition Pyle, Denver J.; Garcia, Rafael A.; Wen, Zhiyou Journal of Agricultural and Food Chemistry, Vol. 56, Issue 11 https://doi.org/10.1021/jf800602s	journal	June 2008
Response Surface Designs for Experiments in Bioprocessing Gilmour, Steven G. Biometrics, Vol. 62, Issue 2 https://doi.org/10.1111/j.1541-0420.2005.00444.x	journal	October 2005
High pressure phase equilibria of supercritical alcohols with triglycerides, fatty esters and cosolvents Hegel, Pablo; Andreatta, Alfonsina; Pereda, Selva Fluid Phase Equilibria, Vol. 266, Issue 1-2 https://doi.org/10.1016/j.fluid.2008.01.016	journal	April 2008
Effect of Temperature on the Continuous Synthesis of Soybean Esters under Supercritical Ethanol Vieitez, Ignacio; da Silva, Camila; Alckmin, Isabella Energy & Fuels, Vol. 23, Issue 1 https://doi.org/10.1021/ef800640t	journal	November 2008
Integrated Technology for Supercritical Biodiesel Production and Power Cogeneration Anitescu, George; Deshpande, Amit; Tavlarides, Lawrence L. Energy & Fuels, Vol. 22, Issue 2 https://doi.org/10.1021/ef700727p	journal	February 2008

Similar Records

Direct conversion of wet algae to crude biodiesel under supercritical ethanol conditions

Journal Article · Tue Aug 06 00:00:00 EDT 2013 · Fuel · OSTI ID:1097057

Optimization of microwave-enhanced methanolysis of algal biomass to biodiesel under temperature controlled conditions

Journal Article · Sat Jun 01 00:00:00 EDT 2013 · Bioresource Technology · OSTI ID:1097055

Direct conversion of algal biomass to biofuel

Patent · Tue Oct 14 00:00:00 EDT 2014 · OSTI ID:1159974

Related Subjects

09 BIOMASS FUELS
Biodiesel
Response surface methodology
Supercritical methanol
Wet algae

Optimization of direct conversion of wet algae to biodiesel under supercritical methanol conditions

Citation Formats

References (16)

Similar Records

Related Subjects