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Title: Assessment of unregulated emissions from gasoline oxygenated blends

Abstract

Four gasoline or gasoline-oxygenate blend fuels were used in the evaluation of regulated and unregulated emissions from five test vehicles. The fuels listed below were prepared from a common base gasoline. Baseline, aromatic-enriched (35.5% aromatics), 10% Ethanol blend (3.5% oxygen), 16.4% Methyl tertiary-butyl ether (MTBE) blend (3.0% oxygen), 19.1% Ethyl tertiary-butyl ether (ETBE) blend (3.0% oxygen). The five test vehicles represented different types of emission control technology: pre-catalyst, oxidation catalyst, three-way catalyst with closed-loop carburetor operation and an air pump, three-way catalyst with throttle body fuel injection, and three-way catalyst with port fuel injection. Each vehicle was operated with each fuel over the Federal Test Procedure (including evaporative emissions) for a total of 15 tests per vehicle. Several unregulated exhaust emissions were measured including ethylene, 1,3-butadiene, isobutylene, benzene, toluene, o-, m-, and p-sylenes, formaldehyde, acetaldehyde, ethanol, MTBE, and nitrous oxide. This paper reports the unregulated emission data from tests using the ethanol, MTBE, and ETBE blends compared to emissions produced from tests using the aromatic-enriched baseline fuel to determine if there were any statistically significant differences associated with the use of the blends. Regulated exhaust emissions (hydrocarbons, carbon monoxide, and oxides of nitrogen) and fuel economy were also measured onmore » each test. In addition, evaporative emissions were analyzed for MTBE, benzene, and ethanol.« less

Publication Date:
OSTI Identifier:
5752634
Report Number(s):
CONF-9010205-
Resource Type:
Conference
Resource Relation:
Conference: 1990 Society of Automotive Engineers (SAE) international fuels and lubricants conference and exposition, Tulsa, OK (USA), 22-25 Oct 1990; Other Information: SAE Technical Paper 902131
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; GASOLINE; EMISSION; AROMATICS; BENZENE; CARBON MONOXIDE; CATALYSTS; ETHANOL FUELS; FUEL INJECTION SYSTEMS; FUELS; HYDROCARBONS; NITROGEN OXIDES; VEHICLES; ALCOHOL FUELS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; FUEL SYSTEMS; LIQUID FUELS; NITROGEN COMPOUNDS; ORGANIC COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PETROLEUM PRODUCTS; SYNTHETIC FUELS; 330102* - Internal Combustion Engines- Diesel; 330702 - Emission Control- Carbon Monoxide; 330701 - Emission Control- Nitrogen Oxides

Citation Formats

. Assessment of unregulated emissions from gasoline oxygenated blends. United States: N. p., 1990. Web.
. Assessment of unregulated emissions from gasoline oxygenated blends. United States.
. Mon . "Assessment of unregulated emissions from gasoline oxygenated blends". United States.
@article{osti_5752634,
title = {Assessment of unregulated emissions from gasoline oxygenated blends},
author = {},
abstractNote = {Four gasoline or gasoline-oxygenate blend fuels were used in the evaluation of regulated and unregulated emissions from five test vehicles. The fuels listed below were prepared from a common base gasoline. Baseline, aromatic-enriched (35.5% aromatics), 10% Ethanol blend (3.5% oxygen), 16.4% Methyl tertiary-butyl ether (MTBE) blend (3.0% oxygen), 19.1% Ethyl tertiary-butyl ether (ETBE) blend (3.0% oxygen). The five test vehicles represented different types of emission control technology: pre-catalyst, oxidation catalyst, three-way catalyst with closed-loop carburetor operation and an air pump, three-way catalyst with throttle body fuel injection, and three-way catalyst with port fuel injection. Each vehicle was operated with each fuel over the Federal Test Procedure (including evaporative emissions) for a total of 15 tests per vehicle. Several unregulated exhaust emissions were measured including ethylene, 1,3-butadiene, isobutylene, benzene, toluene, o-, m-, and p-sylenes, formaldehyde, acetaldehyde, ethanol, MTBE, and nitrous oxide. This paper reports the unregulated emission data from tests using the ethanol, MTBE, and ETBE blends compared to emissions produced from tests using the aromatic-enriched baseline fuel to determine if there were any statistically significant differences associated with the use of the blends. Regulated exhaust emissions (hydrocarbons, carbon monoxide, and oxides of nitrogen) and fuel economy were also measured on each test. In addition, evaporative emissions were analyzed for MTBE, benzene, and ethanol.},
doi = {},
url = {https://www.osti.gov/biblio/5752634}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}

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