Total Emissions Control Possible with LP-Gas Vehicle 680529
A 1966 compact van, converted to operate on LP-gas and evaluated under the federal exhaust emissions procedure, approached several definitions of a “pollution-free vehicle.” Specific pollutant results were as follows:
1.
The hydrocarbon and carbon monoxide levels of 126 ppm and 0.3%, respectively, were below the 1968 and 1970 emission limits.
2.
Certain LP-gas fuel system designs promise to eliminate all evaporative losses.
3.
The exhaust hydrocarbons were 70% less reactive than those in gasoline exhaust.
4.
Aldehydes, a highly reactive class of exhaust compounds, were low.
5.
Oxides of nitrogen were significantly higher with LP-gas because of operation at maximum economy mixtures and maximum power spark advance.
6.
The use of a catalytic muffler and rich LP-gas mixtures produced very low oxides of nitrogen levels with other pollutants below the 1968 limits.
Citation: Baxter, M., Leek, G., and Mizelle, P., "Total Emissions Control Possible with LP-Gas Vehicle," SAE Technical Paper 680529, 1968, https://doi.org/10.4271/680529. Download Citation
Author(s):
M. C. Baxter, G. W. Leek, P. E. Mizelle
Affiliated:
Cities Service Oil Co.
Pages: 5
Event:
National West Coast Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1968 Transactions-V77-A
Related Topics:
Nitrogen oxides
Emissions control
Carbon monoxide
Exhaust emissions
Hydrocarbons
Fuel systems
Emissions
Gasoline
Terminology
Mufflers
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