Improving Biodiesel Blended Fuels: Overcoming the NOx Penalty and Enhancing the Engine's Regulated Emissions Profile

Alexander F. Psaila; Patrick M. Grimes; Richard L. Ellis

doi:10.4271/2011-01-1949

2011-08-30

Improving Biodiesel Blended Fuels: Overcoming the NOx Penalty and Enhancing the Engine's Regulated Emissions Profile 2011-01-1949

Emulsified B20 fuel containing 6.5% mass water has been shown to fully eliminate the NOx penalty associated with diesel blends containing biodiesel. The soybean biodiesel fuel used in this study showed a 6% increase in NOx when formulated as B20 blend in a 2004 Tier 2 Cummins QSM11C engine. This is about twice as high as the average for B20 fuels on account of the higher degree of unsaturation in the fatty acid backbone of soybean oil. In conjunction with a diesel oxidation catalyst (DOC) the emulsified fuel gave impressive reductions in HC, CO and PM with no increase in NOx making emulsified biodiesel fuels with or without a DOC and attractive option for heavy duty applications.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $37.00 Print $37.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Improving Biodiesel Blended Fuels: Overcoming the NOx Penalty and Enhancing the Engine's Regulated Emissions Profile 2011-01-1949

SAE MOBILUS