1988-02-01

A Novel Approach to the Control of Heavy-Duty Diesel Particulate Emissions 880634

An organic supplement that reduces total particulate emissions from a heavy-duty diesel engine has been discovered during experimental testing. The organic supplement can be blended with hydrocarbon fuels and is effective at reducing particulate emissions during transient and steady-state operating conditions while not increasing oxides of nitrogen (NOx) emissions.
On the EPA emissions certification procedure, reductions in particulate emissions produced by the organic supplement, when compared to certification fuel, were similar to those produced by a low sulfur, low aromatic, narrow boiling range diesel fuel. Sulfate emissions were not affected by the organic supplement and were reduced by the low sulfur, low aromatic diesel fuel. However, the low sulfur, low aromatic diesel fuel had a higher conversion rate of fuel sulfur to sulfates than has been previously reported in the published literature.

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