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Accession Number DE2013-1035828
Title Intermediate Ethanol Blends Catalyst Durability Program.
Publication Date Feb 2012
Media Count 348p
Personal Author B. H. West C. S. Sluder J. Feng J. E. Orban K. E. Knoll
Abstract In the summer of 2007, the U.S. Department of Energy (DOE) initiated a test program to evaluate the potential impacts of intermediate ethanol blends (also known as mid-level blends) on legacy vehicles and other engines. The purpose of the test program was to develop information important to assessing the viability of using intermediate blends as a contributor to meeting national goals for the use of renewable fuels. Through a wide range of experimental activities, DOE is evaluating the effects of E15 and E20 gasoline blended with 15% and 20% ethanol on tailpipe and evaporative emissions, catalyst and engine durability, vehicle driveability, engine operability, and vehicle and engine materials. This report provides the results of the catalyst durability study, a substantial part of the overall test program. Results from additional projects will be reported separately. The principal purpose of the catalyst durability study was to investigate the effects of adding up to 20% ethanol to gasoline on the durability of catalysts and other aspects of the emissions control systems of vehicles. Section 1 provides further information about the purpose and context of the study. Section 2 describes the experimental approach for the test program, including vehicle selection, aging and emissions test cycle, fuel selection, and data handling and analysis. Section 3 summarizes the effects of the ethanol blends on emissions and fuel economy of the test vehicles. Section 4 summarizes notable unscheduled maintenance and testing issues experienced during the program. The appendixes provide additional detail about the statistical models used in the analysis, detailed statistical analyses, and detailed vehicle specifications.
Keywords Catalysts
Diesel fuels
Durability
Emission
Engines
Ethanol blends
Ethanol fuels
Gasoline
Renewable fuels
Specifications
Testing
Vehicles


 
Source Agency Technical Information Center Oak Ridge Tennessee
NTIS Subject Category 97K - Fuels
97F - Fuel Conversion Processes
99B - Industrial Chemistry & Chemical Process Engineering
Corporate Author Oak Ridge National Lab., TN.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1325
Contract Number DE-AC05-00OR22725

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