Impacts of N, N'-diphenyl-1, 4-phenylenediamine (DPPD) Antioxidant Additive in Jatropha Biodiesel Blends to Reduce NO_x Emission of a Multi Cylinder Vehicle Type Diesel Engine

Abstract:

To meet stringent exhaust emission norms worldwide, various exhaust pre-treatment and post-treatment techniques have been employed in modern engines. Using antioxidant additives in biodiesel fuels is a promising and effective NO_x reduction technology. Non-edible jatropha oil based methyl ester was produced and blended with conventional diesel. Five fuel samples (Diesel, JB5, JB5DPPD0.15%, JB15 and JB15DPPD0.15%) were tested for their use as substitute fuel for a radiator-cooled four cylinder diesel engine. Experiment results show that DPPD antioxidant additive could be reduced NO_x emission significantly with slight penalty on engine performance as well as CO and HC emission. However, when compared to diesel combustion the emissions of HC and CO were found nearly same or below. By addition of 0.15% (m) DPPD additive in JB5 and JB15 reduction of NO_x emission were 12.68% and 13.36 % compared to biodiesel blends without additive at full throttle position. As conclusion, JB5 and JB15 with addition of 0.15% (m) can be used in four cylinder diesel engine to reduce NO_x and consequently overcome the barrier to market expansion of biodiesel fuels.

• Periodical: Advanced Materials Research (Volumes 774-776)
• Pages: 784-790
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.774-776.784
• Online since: September 2013
• Authors: S.M. Palash, M.A. Kalam, H.H. Masjuki, B.M. Masum
• Keywords: DPPD Antioxidant, Emission, Jatropha Biodiesel, NO_x Reduction, Performance

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