Abstract：
:In this investigation, Enteromorpha compressa algal oil with high free fatty acids (FFA) used as a feedstock for biodiesel production. Two step process was developed and kinetic study executed to obtain reaction rate constant for the transesterification reaction. The acid esterification was carried out to reduce FFA from 6.3% to 0.34% with optimized parameters of 1.5% H(2)SO(4), 12:1 methanol-oil ratio, 400 rpm at 60 °C and 90 min of reaction time. The maximum biodiesel yield 90.6% was achieved from base transesterification through optimum conditions of 1% NaOH, 9:1 methanol-oil ratio, 600 rpm and 60 °C temperature for 70 min. The algal biodiesel was characterized by GC-MS, HPLC and NIR. This transesterification follows first order reaction kinetics and the activation energy was determined as 73,154.89 J/mol. The biodiesel properties were analyzed and found to be within the limits of American standards. Hence, E. compressa serves as a valuable renewable raw-material for biodiesel production.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Suganya T,Nagendra Gandhi N,Renganathan Sdoi
10.1016/j.biortech.2012.10.068subject
Has Abstractpub_date
2013-01-01 00:00:00pages
392-400eissn
0960-8524issn
1873-2976pii
S0960-8524(12)01570-2journal_volume
128pub_type
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