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UC Riverside developing biofuel formulations for California
Date:8/29/2012

ikely to be implemented in the state in the near future.

"The results show that research is still needed to find optimal biofuel blends that achieve maximum environmental benefits in all aspects," said Thomas D. Durbin, a research engineer at CE-CERT and the lead author of the recent journal article in Environmental Science and Technology where the findings were outlined.

He continued: "One of CE-CERT's missions is to help bring new environmental, sustainable technologies to the marketplace and we are now one step closer with biodiesel by understanding how small changes in fuel composition can affect emissions."

The research finding in the journal article, and a related report, are the most comprehensive look at the impact of blending biodiesels with California diesel, which is the cleanest in the nation. CE-CERT researchers have also done extensive studies comparing California diesel with diesel fuels found in other states, where less stringent fuel emission standards apply.

Two researchers at CE-CERT, which is part of UC Riverside's Bourns College of Engineering, co-authored the paper with Durbin. They were: Kent Johnson, an assistant research faculty member at the center, and Maryam Hajbabaei, a graduate student researcher at the center. Three CARB researchers were also co-authors: Robert Okamoto, Alexander Mitchell and Marcie Pullman.

The same CE-CERT team, along with Wayne Miller, CE-CERT's associate director, and scientists at UC Davis and Arizona State University, produced a related report for CARB.

The findings outlined in the journal article stem from tests using two heavy-duty engines: a 2006 engine with no exhaust aftertreatment, and a 2007 engine with a diesel particle filter (DPF). The tests were conducted on an engine dynamometer over four test cycles that simulated different driving conditions.

In the coming months, several follow-up studies are planned, including: more comprehensive testi
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Contact: Sean Nealon
sean.nealon@ucr.edu
951-827-1287
University of California - Riverside
Source:Eurekalert

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