Effect of gasoline composition on exhaust hydrocarbon
The purpose of this study is to evaluate the characteristics of individual hydrocarbons in gasoline and to clarify the effect of the gasoline composition on engine-out exhaust hydrocarbons. Experiments were performed on a single cylinder research engine operating under steady state condition. The test fuels were blended gasolines of alkylate, catalytic reformate and fluid catalytic cracking gasoline. Chemically defined binary fuel mixtures of isooctane, benzene, toluene, xylene, and ethylbenzene were used as variables to study their impact on exhaust hydrocarbons. The individual exhaust hydrocarbon species were analyzed using a gas chromatograph with flame ionization detector. The results of tests with blended gasoline indicated that the exhaust hydrocarbons were classified into the unburned fuel and the cracked products such as methane, ethane and various olefins. The production coefficients of benzene were 5% for toluene, 4% for xylene and 6% for ethylbenzene. These values suggested that alkylbenzene in the fuel produced benzene in the exhaust. 8 refs., 16 figs., 5 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 91233
- Report Number(s):
- CONF-9410173--
- Journal Information:
- SAE Special Publication, Journal Name: SAE Special Publication Journal Issue: 1054; ISSN SAESA2
- Country of Publication:
- United States
- Language:
- English
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