Effect of branched C<inf>8</inf>olefins addition to mexican gasoline on motor vehicles exhaust emissions

E. López-Salinas, M. A. Mantilla, G. Ferrat, A. López, L. A. García, M. Vera

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Two groups of gasoline blends were prepared using a base-gasoline, containing 7.6% MTBE and added with either lower olefins (C5-C6) or butene's dimer (made up of 70% branched C8-olefins). In each gasoline group, the olefin concentration was varied 5, 10, and 15 vol%. The dimer was produced in our pilot plant facilities from a mixture of n-butenes. An FTP-75 test procedure, performed on a 98 model year vehicle, was used to assess the effect of olefins type (C5-C6or C8) and their concentration in a gasoline blend on exhaust emissions; namely: CO, total hydrocarbons. NOx, and toxic compounds, such as aldehydes and ketones. Average CO emissions dropped 20-27%, when using 5-15 vol% C8olefins-gasoline, in comparison with those using C5-C6olefins-gasolines. Total hydrocarbons emissions, on the other hand, remained practically unaffected either by the type of olefins or their concentrations (5- 15 vol%). NOx emission factors decreased 10-14% when using the C8olefins-gasolines, relative to those containing lower olefins. Main toxic pollutants were formaldehyde, propanone, and acetaldehyde. In average, acetaldehyde emissions decreased 23-53% in the dimer-gasoline group, but formaldehyde emissions increased 5-39%, depending on the olefins content and in comparison with the lower olefins-gasolines.
Original languageAmerican English
Pages (from-to)177-187
Number of pages158
JournalPetroleum Science and Technology
DOIs
StatePublished - 1 Jan 2004
Externally publishedYes

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Vehicle Emissions
Gasoline
exhaust emission
Motor Vehicles
traffic emission
Alkenes
Olefins
acetaldehyde
formaldehyde
hydrocarbon
Dimers
MTBE
Acetaldehyde
ketone
aldehyde
Poisons
Carbon Monoxide
Hydrocarbons
Butenes
Formaldehyde

Cite this

@article{223ceb478c804794b14aab219fbee8a1,
title = "Effect of branched C8olefins addition to mexican gasoline on motor vehicles exhaust emissions",
abstract = "Two groups of gasoline blends were prepared using a base-gasoline, containing 7.6{\%} MTBE and added with either lower olefins (C5-C6) or butene's dimer (made up of 70{\%} branched C8-olefins). In each gasoline group, the olefin concentration was varied 5, 10, and 15 vol{\%}. The dimer was produced in our pilot plant facilities from a mixture of n-butenes. An FTP-75 test procedure, performed on a 98 model year vehicle, was used to assess the effect of olefins type (C5-C6or C8) and their concentration in a gasoline blend on exhaust emissions; namely: CO, total hydrocarbons. NOx, and toxic compounds, such as aldehydes and ketones. Average CO emissions dropped 20-27{\%}, when using 5-15 vol{\%} C8olefins-gasoline, in comparison with those using C5-C6olefins-gasolines. Total hydrocarbons emissions, on the other hand, remained practically unaffected either by the type of olefins or their concentrations (5- 15 vol{\%}). NOx emission factors decreased 10-14{\%} when using the C8olefins-gasolines, relative to those containing lower olefins. Main toxic pollutants were formaldehyde, propanone, and acetaldehyde. In average, acetaldehyde emissions decreased 23-53{\%} in the dimer-gasoline group, but formaldehyde emissions increased 5-39{\%}, depending on the olefins content and in comparison with the lower olefins-gasolines.",
author = "E. L{\'o}pez-Salinas and Mantilla, {M. A.} and G. Ferrat and A. L{\'o}pez and Garc{\'i}a, {L. A.} and M. Vera",
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doi = "10.1081/LFT-120028531",
language = "American English",
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Effect of branched C<inf>8</inf>olefins addition to mexican gasoline on motor vehicles exhaust emissions. / López-Salinas, E.; Mantilla, M. A.; Ferrat, G.; López, A.; García, L. A.; Vera, M.

In: Petroleum Science and Technology, 01.01.2004, p. 177-187.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of branched C8olefins addition to mexican gasoline on motor vehicles exhaust emissions

AU - López-Salinas, E.

AU - Mantilla, M. A.

AU - Ferrat, G.

AU - López, A.

AU - García, L. A.

AU - Vera, M.

PY - 2004/1/1

Y1 - 2004/1/1

N2 - Two groups of gasoline blends were prepared using a base-gasoline, containing 7.6% MTBE and added with either lower olefins (C5-C6) or butene's dimer (made up of 70% branched C8-olefins). In each gasoline group, the olefin concentration was varied 5, 10, and 15 vol%. The dimer was produced in our pilot plant facilities from a mixture of n-butenes. An FTP-75 test procedure, performed on a 98 model year vehicle, was used to assess the effect of olefins type (C5-C6or C8) and their concentration in a gasoline blend on exhaust emissions; namely: CO, total hydrocarbons. NOx, and toxic compounds, such as aldehydes and ketones. Average CO emissions dropped 20-27%, when using 5-15 vol% C8olefins-gasoline, in comparison with those using C5-C6olefins-gasolines. Total hydrocarbons emissions, on the other hand, remained practically unaffected either by the type of olefins or their concentrations (5- 15 vol%). NOx emission factors decreased 10-14% when using the C8olefins-gasolines, relative to those containing lower olefins. Main toxic pollutants were formaldehyde, propanone, and acetaldehyde. In average, acetaldehyde emissions decreased 23-53% in the dimer-gasoline group, but formaldehyde emissions increased 5-39%, depending on the olefins content and in comparison with the lower olefins-gasolines.

AB - Two groups of gasoline blends were prepared using a base-gasoline, containing 7.6% MTBE and added with either lower olefins (C5-C6) or butene's dimer (made up of 70% branched C8-olefins). In each gasoline group, the olefin concentration was varied 5, 10, and 15 vol%. The dimer was produced in our pilot plant facilities from a mixture of n-butenes. An FTP-75 test procedure, performed on a 98 model year vehicle, was used to assess the effect of olefins type (C5-C6or C8) and their concentration in a gasoline blend on exhaust emissions; namely: CO, total hydrocarbons. NOx, and toxic compounds, such as aldehydes and ketones. Average CO emissions dropped 20-27%, when using 5-15 vol% C8olefins-gasoline, in comparison with those using C5-C6olefins-gasolines. Total hydrocarbons emissions, on the other hand, remained practically unaffected either by the type of olefins or their concentrations (5- 15 vol%). NOx emission factors decreased 10-14% when using the C8olefins-gasolines, relative to those containing lower olefins. Main toxic pollutants were formaldehyde, propanone, and acetaldehyde. In average, acetaldehyde emissions decreased 23-53% in the dimer-gasoline group, but formaldehyde emissions increased 5-39%, depending on the olefins content and in comparison with the lower olefins-gasolines.

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