TY - JOUR
T1 - Optimization of microwave-assisted transesterification of dry algal biomass using response surface methodology
AU - Patil, Prafulla D.
AU - Gude, Veera Gnaneswar
AU - Mannarswamy, Aravind
AU - Cooke, Peter
AU - Munson-McGee, Stuart
AU - Nirmalakhandan, Nagamany
AU - Lammers, Peter
AU - Deng, Shuguang
N1 - Funding Information:
The authors would like to acknowledge funding of this work by the US Department of Energy under contract DE-EE0003046 awarded to the National Alliance for Advanced Biofuels and Bioproducts and New Mexico State University Office of Vice President for Research. The authors are thankful to CEHMM Artesia, NM for providing the wet algal biomass.
PY - 2011/1
Y1 - 2011/1
N2 - The effect of microwave irradiation on the simultaneous extraction and transesterification (in situ transesterifcation) of dry algal biomass to biodiesel was investigated. A high degree of oil/lipid extraction from dry algal biomass and an efficient conversion of the oils/lipids to biodiesel were demonstrated in a set of well-designed experimental runs. A response surface methodology (RSM) was used to analyze the influence of the process variables (dry algae to methanol (wt/vol) ratio, catalyst concentration, and reaction time) on the fatty acid methyl ester conversion. Based on the experimental results and RSM analysis, the optimal conditions for this process were determined as: dry algae to methanol (wt/vol) ratio of around 1:12, catalyst concentration about 2 wt.%, and reaction time of 4. min. The algal biodiesel samples were analyzed with GC-MS and thin layer chromatography (TLC) methods. Transmission electron microscopy (TEM) images of the algal biomass samples before and after the extraction/transesterification reaction are also presented.
AB - The effect of microwave irradiation on the simultaneous extraction and transesterification (in situ transesterifcation) of dry algal biomass to biodiesel was investigated. A high degree of oil/lipid extraction from dry algal biomass and an efficient conversion of the oils/lipids to biodiesel were demonstrated in a set of well-designed experimental runs. A response surface methodology (RSM) was used to analyze the influence of the process variables (dry algae to methanol (wt/vol) ratio, catalyst concentration, and reaction time) on the fatty acid methyl ester conversion. Based on the experimental results and RSM analysis, the optimal conditions for this process were determined as: dry algae to methanol (wt/vol) ratio of around 1:12, catalyst concentration about 2 wt.%, and reaction time of 4. min. The algal biodiesel samples were analyzed with GC-MS and thin layer chromatography (TLC) methods. Transmission electron microscopy (TEM) images of the algal biomass samples before and after the extraction/transesterification reaction are also presented.
KW - Biodiesel
KW - Dry algae
KW - Extractive transesterification
KW - Microwave-assisted extraction
KW - Response surface methodology
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U2 - 10.1016/j.biortech.2010.09.046
DO - 10.1016/j.biortech.2010.09.046
M3 - Article
C2 - 20933395
AN - SCOPUS:78650693741
SN - 0960-8524
VL - 102
SP - 1399
EP - 1405
JO - Bioresource Technology
JF - Bioresource Technology
IS - 2
ER -