Emissions characteristics of a light duty diesel engine fueled with a hydrogenated biodiesel fuel

FUEL 14

Elana Chapman, emc5@psu.edu, The Energy Institute, Pennsylvania State University, 405 Academic Activities Building, University Park, PA 16802-5000 and André L. Boehman, boehman@ems.psu.edu, The Energy Institute, Penn State University, 405 Academic Activities Building, University Park, PA 16802.
Implementing greater biodiesel use in compression ignition engines is inhibited in part because of the observed increase in NOx emissions as compared to conventional petroleum diesel fuel. A relation between the saturation of the fuel and NOx emissions has been established in the literature. This research explored the approach of achieving a more saturated biodiesel fuel and observing its effects on NOx emissions blended as B50. The option explored is the hydrogenation of soybean oil prior to transesterification. A hydrogenated soy methyl ester was mixed with an ultra low sulfur diesel fuel. This fuel has a higher percentage of oleic acid methyl ester, and a reduction in the linoleic and linolenic methyl esters. Emissions testing on a light duty diesel engine revealed a decrease in NOx levels for some engine modes and an increase for other modes.
 

Biofuels for Transportation
8:55 AM-12:05 PM, Sunday, 26 March 2006 Georgia World Congress Center -- C204, Oral

Division of Fuel Chemistry

The 231st ACS National Meeting, Atlanta, GA, March 26-30, 2006