Aerospace
Technical Paper

A Statistical Analysis of the Effect of MMT Concentration on Hydrocarbon Emissions

800393

2/1/1980

Event
1980 Automotive Engineering Congress and Exposition
Authors
G. A. Hughmark Ethyl Corporation, Baton Rouge, LA
B. A. Sobel Ethyl Corporation, Baton Rouge, LA
Abstract
Content
Statistical analyses of extensive fleet test data from several sources with the gasoline antiknock additive, MMT, provide mathematical models for each car make that show the effect of MMT and mileage accumulation on hydrocarbon emissions. These models show:
  1. 1.
    Engine-out hydrocarbons increase linearly with MMT concentration in the fuel up to 50,000 miles, which is the limit of the data.
  2. 2.
    MMT results in enhancement of catalyst converter efficiency, which also shows a response to the MMT concentration in the fuel.
Meta Tags
Topics
Emissions measurement
Catalytic converters
Environmental testing
Hydrocarbons
Taxi fleets
Mathematical models
Combustion and combustion processes
Statistical analysis
Ignition systems
Reformulated gasoline
Exterior noise
Affiliated or Co-Author
Ethyl Corporation, Baton Rouge, LA
Details
Citation
Hughmark, G. and Sobel, B., "A Statistical Analysis of the Effect of MMT Concentration on Hydrocarbon Emissions," 1980 Automotive Engineering Congress and Exposition, Detroit, Michigan, United States, February 25, 1980, .
Additional Details
Publisher
SAE International
Published
2/1/1980
Product Code
800393
Content Type
Technical Paper
Language
English