Thermogravimetry of filter-borne gasoline engine-out particulates

Zinbo, M.; Korniski, Thomas J.; Weir, J. E.

doi:10.1016/0040-6031(93)80223-w

Cited by 6 publications

(15 citation statements)

References 10 publications

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“…A compositional TGA procedure has been developed for the characterization of gasoline-fueled, low-particulate emissions collected on ultrathin PTFE-membrane filters (Zinbo et al, 1993a). As reported previously, the blank PTFE membrane decomposes cleanly over a temperature range of 520-620 "C under an air atmosphere (Zinbo et al, 1993a). As reported previously, the blank PTFE membrane decomposes cleanly over a temperature range of 520-620 "C under an air atmosphere (Zinbo et al, 1993a).…”

Section: Resultsmentioning

confidence: 88%

“…Each of the four diluted particulate emissions was collected at the three equivalent dilution sampling sites (Gelman 2-pm Teflo at site 1 and Pallflex T60A20 at sites 2 and 3). 91% of total diluted particulate mass collected on each primary PTFE-bonded glass-fiber filter as reported previously (Zinbo et al, 1993a). EPA UDDS test procedures (US.…”

Section: Resultsmentioning

confidence: 99%

“…A compositional TGA procedure has been developed for the characterization of gasoline-fueled, low-particulate emissions collected on ultrathin PTFE-membrane filters (Zinbo et al, 1993a). A compositional TGA procedure has been developed for the characterization of gasoline-fueled, low-particulate emissions collected on ultrathin PTFE-membrane filters (Zinbo et al, 1993a).…”

Section: Resultsmentioning

confidence: 99%

“…The TGA data reduction procedure for the compositional analysis of particulate evaporatives (i.e., particulate mass minus ash) has been reported elsewhere (Zinbo et al, 1993a. The TGA data reduction procedure for the compositional analysis of particulate evaporatives (i.e., particulate mass minus ash) has been reported elsewhere (Zinbo et al, 1993a.…”

Section: Spectroscopic Measurements Of Gaseous Emissionsmentioning

confidence: 99%

“…At the same time, the dichloromethane (DCM) extractable fraction of the particulate emissions collected from the 1989 vehicle is lowered by a factor of 5 compared to those of the particulate emissions collected from eight 1980-1981 vehicles, i.e., from 55% to 11% (Schuetzle, 1983). In fact, the particulate emission data clearly indicate not only an improved fuel combustion technology, but also improved current production catalyst systems, considering that a major source of soot is unburnt fuel and that of DCM extractables is base-oil hydrocarbons (BOHs) (Zinbo et al, 1993a).…”

Section: Introductionmentioning

confidence: 98%

See 4 more Smart Citations

Relationship between the composition of engine particulate emissions and emission control system performance

Zinbo¹,

Korniski²,

Weir³

1995

Ind. Eng. Chem. Res.

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This study was carried out to determine the effect of simulated engine and catalyst malfunction conditions on the mass and composition of tailpipe particulate emissions from a 1990 Ford Taurus, running on a 3.2% oxygenated gasoline blend. Particulate emissions ranged from 2.0 to 4.4 mg/mi under all conditions studied. These emission levels are far below the current U.S.EPA standard of 80 mg/mi. Soot was a major component of postcatalyst particulate emissions (6570%). Thermogravimetry demonstrated that only the low-to-medium boiling fraction of the engine oil was emitted from the cylinder walls and crevices. The catalyst aftertreatment significantly reduced the emissions of the low-to-medium boiling components, i.e., from 1.9 to 0.1 mg/mi. The formation of major organic compounds found in the postcatalyst particulate emissions has been explained by the thermal oxidation of aliphatic base-oil hydrocarbons. The level of ash emissions was relatively constant under all conditions (0.4-0.5 mg/mi>. The particulate composition data can be useful in helping to diagnose emission control system performance.

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Section: Resultsmentioning

confidence: 88%

Section: Resultsmentioning

confidence: 99%

“…A compositional TGA procedure has been developed for the characterization of gasoline-fueled, low-particulate emissions collected on ultrathin PTFE-membrane filters (Zinbo et al, 1993a). A compositional TGA procedure has been developed for the characterization of gasoline-fueled, low-particulate emissions collected on ultrathin PTFE-membrane filters (Zinbo et al, 1993a).…”

Section: Resultsmentioning

confidence: 99%

Section: Spectroscopic Measurements Of Gaseous Emissionsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 3 more Smart Citations

Relationship between the composition of engine particulate emissions and emission control system performance

Zinbo¹,

Korniski²,

Weir³

1995

Ind. Eng. Chem. Res.

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Effects of particulate matter from gasoline and diesel vehicle exhaust emissions on silicate stones sulfation

Simão

Ruíz-Agudo

Rodríguez-Navarro

2006

Atmospheric Environment

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Thermogravimetric analysis of diesel particulate matter

Lapuerta¹,

Ballesteros²,

Rodríguez–Fernández³

2007

Meas. Sci. Technol.

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The regulated level of diesel particulate mass for 2008 light-duty diesel on-road engines will be 0.005 g km−1 in Europe. Measurements by weighing and analysis of this low level of particulate mass based on chemical extraction are costly, time consuming and hazardous because of the use of organic solvents, potentially carcinogenic. An alternative to this analysis is proposed here: a thermal mass analyser that measures the volatile fraction (VOF) as well as the soot fraction of the particulate matter (PM) collected on a cleaned fibre glass filter. This paper evaluates this new thermal mass measurement (TGA) as a possible alternative to the conventional chemical extraction method, and presents the results obtained with both methods when testing a diesel engine fuelled with a reference diesel fuel (REF), a pure biodiesel fuel (B100) and two blends with 30% and 70% v/v biodiesel (B30 and B70, respectively).

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Thermogravimetry of filter-borne gasoline engine-out particulates

Cited by 6 publications

References 10 publications

Relationship between the composition of engine particulate emissions and emission control system performance

Relationship between the composition of engine particulate emissions and emission control system performance

Effects of particulate matter from gasoline and diesel vehicle exhaust emissions on silicate stones sulfation

Thermogravimetric analysis of diesel particulate matter

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