Marine fish such as mackerel are important for coastal fisheries in Taiwan. Nearly 60,000 tons of
mackerel are produced in Suao, I-lan, Taiwan every year. In this study, oil from the discarded parts of
mackerel fish contained in wastewater stream were used as the raw material to produce biodiesel
through transesterification reaction. The major fuel properties of MB (mackerel biodiesel), including the
iodine value, dynamic viscosity, flash point, and heat value, were determined and compared with sunflower
seed oil methyl ester (SFM), JCB (Jatropha curcas biodiesel), and premium diesel (D). MB had a
higher iodine value, dynamic viscosity, density, and flash point, but a lower heat value, than did D. MB
was also used as fuel in a regular diesel engine to verify its emission characteristics. The MB fuel used for
exhaust emission test included pure MB (MB100) and a 20% MB blend with premium diesel (MB20). The
exhaust emission of MB was also compared with the exhaust emissions of D and JCB. The results showed
that MB20 provided a significant reduction in NO, NOx, and SO2 emissions under varied engine loads, and
required no engine modification
Marine fish such as mackerel are important for coastal fisheries in Taiwan. Nearly 60,000 tons ofmackerel are produced in Suao, I-lan, Taiwan every year. In this study, oil from the discarded parts ofmackerel fish contained in wastewater stream were used as the raw material to produce biodieselthrough transesterification reaction. The major fuel properties of MB (mackerel biodiesel), including theiodine value, dynamic viscosity, flash point, and heat value, were determined and compared with sunflowerseed oil methyl ester (SFM), JCB (Jatropha curcas biodiesel), and premium diesel (D). MB had ahigher iodine value, dynamic viscosity, density, and flash point, but a lower heat value, than did D. MBwas also used as fuel in a regular diesel engine to verify its emission characteristics. The MB fuel used forexhaust emission test included pure MB (MB100) and a 20% MB blend with premium diesel (MB20). Theexhaust emission of MB was also compared with the exhaust emissions of D and JCB. The results showedthat MB20 provided a significant reduction in NO, NOx, and SO2 emissions under varied engine loads, andrequired no engine modification
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