Sulfate Emissions from Catalyst-Equipped Automobiles

Begeman, Charles R.; Jackson, Marvin W.; Nebel, George J.

doi:10.4271/741060

Cited by 26 publications

(6 citation statements)

References 13 publications

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“…The observation regarding the absence of metals in the sample is in agreement with that found by Braddock and Gabele (7). The observed sulfate content is somewhat lower than those (2-3%) reported previously (5)(6)(7)(8)(9). However, in all previous investigations the sample was diluted and, hence cooled, before it was collected and analyzed.…”

Section: Resultssupporting

confidence: 92%

Particle and smoke emission from a light duty diesel engine

Ander.¹,

Loos²,

Springer³

1977

Environ. Sci. Technol.

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Particulate and smoke emissions were studied in the exhaust of a Mercedes Benz type OM 616 diesel engine. The weight and size distribution of the particulate matter emitted and the intensity of the smoke were measured at different engine loads and at various constant speeds in the range 35-96 km h_1. The level of the particulates emitted during a simulated seven-mode Federal Test Procedure was also determined. The results showed that both the particulate and smoke emissions were highly dependent on engine speed and load. The particulate matter collected was analyzed for its chemical composition, showing that 60-75 wt % of the particulate matter was organic compounds.

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Section: Resultssupporting

confidence: 92%

Particle and smoke emission from a light duty diesel engine

Ander.¹,

Loos²,

Springer³

1977

Environ. Sci. Technol.

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“…The approximate 2% S -*• SO42-conversion in diesels is higher than is observed in noncatalyst spark-ignition vehicles (14)(15)(16)(17)(18)(19) and less than in oxidation-catalyst-equipped sparkignition systems (3,4,6,9,13). Because of the amount of sulfur in diesel fuel, however, the SO42-emission rate from a diesel system is comparable to that from an oxidation-catalystequipped spark-ignition system.…”

mentioning

confidence: 90%

“…Diesel fuel contains on the average 0.2 wt % sulfur (1), or almost an order of magnitude more than gasoline (2). About 2% of the fuel sulfur burned in diesel engines is emitted as sulfate (SO42-) (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14), more or less independently of engine type or operating mode. SO42-usually comprises several percent, by mass, of the total airborne exhaust particulate matter (3, 5,8,10-14) from a diesel system.…”

mentioning

confidence: 99%

Sulfate in diesel exhaust

Truex¹,

Pierson²,

McKee³

1980

Environ. Sci. Technol.

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“…For these measurements the entire exhaust flow was diluted in a 33 m3min-' constant volume dilution tunnel (Begeman et al, 1974), as shown in Figure 2. Here again the mass concentration determined at the filter and the photoacoustic signal both refer to diluted samples whereas the opacity readings correspond to undiluted exhaust.…”

Section: Experimental Measurementsmentioning

confidence: 99%