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

RIVERSIDE, Calif. (www.ucr.edu) Researchers at the University of California, Riverside's College of Engineering Center for Environmental Research and Technology (CE-CERT) are working with the state of California to develop diesel formulations with higher levels of renewable biofuels.

This research supports several California legislative measures and regulations that aim to increase the use of renewable fuels and reduce greenhouse gases. These include AB 32, which requires the state to develop regulations that will reduce carbon dioxide-equivalent greenhouse gas emissions to 1990 levels by 2020, and the California Air Resources Board's (CARB's) Low Carbon Fuel Standard (LCFS).

In the first major step of this effort, researchers at CE-CERT have evaluated the potential impacts of using biodiesel in diesel sold through California. Biodiesel may provide significant reductions in carbon dioxide emissions because it is produced from renewable sources, such as soybeans, that absorb carbon dioxide while growing.

Biodiesel use and production is already expanding rapidly in the United States. Over the past decade, it jumped from 2 million gallons in 2002 to 1.1 billion gallons in 2011, according to the National Biodiesel Board.

Although biodiesel provides benefits in a number of emissions components, such as hydrocarbons, carbon monoxide, and particulate matter, one issue with biodiesel use in California is its potential to increase nitrogen oxide (NOx) emissions, a key contributor to smog.

The CE-CERT study found that adding biodiesel at levels of 20 percent and higher would likely increase NOx emissions, but several strategies were proposed that could potentially mitigate such increases, including blending with more advanced renewable diesel fuels or through the use of additives. Results were less conclusive for biodiesel blends near the 5 percent, which are the levels most likely 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 testing with 5 percent biodiesel blends; adding additives to reduce NOx emissions in 20 percent biodiesel blends; and evaluating the impact of biodiesel blends have on emissions from light-duty vehicles, such as passenger cars. This will include the development of certified biofuel and biodiesel blends that can be sold in diesel fuel throughout California.


'/>"/>
Contact: Sean Nealon
sean.nealon@ucr.edu
951-827-1287
University of California - Riverside
Source:Eurekalert

Related biology news :

1. UC Riverside graduate student awarded Guru Gobind Singh Fellowship
2. $5 million grant awarded to UC Riverside to study immortality
3. UC Riverside geologist receives 2 prestigious honors
4. UC Riverside receives grant for global health and development research
5. UC Riverside plant cell biologist receives top scientific honor
6. Developing policy on moving threatened species called a grand challenge for conservation
7. Developing world has less than 5 percent chance of meeting UN child hunger target, study estimates
8. UMass Amherst biochemists developing tools to stop plague and other bacterial threats
9. VTT and GE Healthcare developing novel biomarkers to predict Alzheimers disease
10. Agricultural expert outlines path for developing nations to double food production, meet 2050 demand
11. Medbox Developing a Patent Pending Wall-Mounted Biometric Kiosk for Storage of Sensitive Medicine Samples and Supplies for Doctors Offices.
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/2/2016)... LONDON , June 2, 2016 ... Systems, Manned Platforms, Unmanned Systems, Physical Infrastructure, Support & ... intelligence provider visiongain offers comprehensive analysis of ... that this market will generate revenues of $17.98 billion ... Systems acquired DVTEL Inc, a leader in software and ...
(Date:5/16/2016)... --  EyeLock LLC , a market leader of iris-based ... IoT Center of Excellence in Austin, Texas ... embedded iris biometric applications. EyeLock,s iris authentication ... with unmatched biometric accuracy, making it the most proven ... platform uses video technology to deliver a fast and ...
(Date:4/28/2016)... BANGALORE, India , April 28, 2016 ... subsidiary of Infosys (NYSE: INFY ), and Samsung ... global partnership that will provide end customers with a ... and payment services.      (Logo: http://photos.prnewswire.com/prnh/20130122/589162 ... for financial services, but it also plays a fundamental part ...
Breaking Biology News(10 mins):
(Date:6/27/2016)... , June 27, 2016  Global demand ... 4.6 percent through 2020 to $7.2 billion.  This ... and beverages, cleaning products, biofuel production, animal feed, ... biotechnology, diagnostics, and biocatalysts). Food and beverages will ... driven by increasing consumption of products containing enzymes ...
(Date:6/27/2016)... ... June 27, 2016 , ... Cancer experts from ... believe could be a new and helpful biomarker for malignant pleural mesothelioma. Surviving ... to read it now. , Biomarkers are components in the blood, tissue ...
(Date:6/27/2016)... ... 27, 2016 , ... Rolf K. Hoffmann, former senior vice ... University of North Carolina Kenan-Flagler Business School effective June 27. , ... with a focus on the school’s international efforts, leading classes and participating in ...
(Date:6/24/2016)... TOKYO , June 24, 2016  Regular discussions on ... to take place between the two entities said Poloz. ... in Ottawa , he pointed to the ... and the federal government. ... Poloz said, "Both institutions have common economic goals, why not ...
Breaking Biology Technology: