Oxidized biodiesel fuel composition and associated tailpipe ultrafine particle emissions

A number of basic chemical tests are currently used to quantify the oxidative stability of neat biodiesel fuel, but little information exists on how the organic chemical composition of biodiesel changes with oxidation of the fuel’s fatty acid methyl esters. These changes in fuel composition are expected to have important effects on the tailpipe emissions associated with use of biodiesel in real-world fuel blends. This study will (1) determine the chemical composition of B100 and real-world Bxx biodiesel fuel blends by detailed organic GC-MS analysis at different stages of oxidation and compare the GC-MS results to the ASTM methods for acid value (AV) and peroxide value (PV) to gain better understanding of the oxidation pathways of FAMEs; and (2) conduct emissions tests on oxidized and unoxidized biodiesel fuels and compare their particle-phase emissions. This study aims to identify the differential oxidation pathways for biodiesel prepared from virgin soybean feedstock to that of recycled waste vegetable oil given that feedstock choice and processing are significant parts of the fuel’s lifecycle analysis.

Language

  • English

Project

  • Status: Completed
  • Funding: $353000
  • Contract Numbers:

    DTRT13-G-UTC29

  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590

    U.S. Department of Transportation

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    UVM Transportation Center

    University of Vermont
    210 Colchester Avenue
    Burlington, VT  United States  05405

    National Center for Sustainable Transportation

    University of California, Davis
    Davis, CA  United States 
  • Managing Organizations:

    National Center for Sustainable Transportation

    University of California, Davis
    Davis, CA  United States 

    UVM Transportation Center

    University of Vermont
    210 Colchester Avenue
    Burlington, VT  United States  05405
  • Project Managers:

    Iacobucci, Lauren

  • Performing Organizations:

    National Center for Sustainable Transportation

    University of California, Davis
    Davis, CA  United States 

    UVM Transportation Center

    University of Vermont
    210 Colchester Avenue
    Burlington, VT  United States  05405
  • Principal Investigators:

    Reid, Jack

  • Start Date: 20150701
  • Expected Completion Date: 20171231
  • Actual Completion Date: 20171231
  • USDOT Program: University Transportation Centers

Subject/Index Terms

Filing Info

  • Accession Number: 01713614
  • Record Type: Research project
  • Source Agency: National Center for Sustainable Transportation
  • Contract Numbers: DTRT13-G-UTC29
  • Files: UTC, RiP
  • Created Date: Aug 8 2019 2:44PM