Additions and Corrections. Effect of Fuel Structure on Emissions from a Spark-Ignited Engine

Letters To The Editor

“…These results are certainly very interesting. However, the observations and conclusions drawn in their paper are in large measure identical (with certain exceptions) to those presented earlier in a series of publications from the Ford Motor Co., [2][3][4][5][6] which have not been cited by the authors. For this reason, I believe it is important to discuss briefly the Ford results and to compare them to this Journal paper.…”

“…(1) In the abstract of Kaiser et al 1991, 2 we state that, based on emissions from a toluene-fueled engine, "Benzene and benzaldehyde are major non-fuel hydrocarbon emissions from toluene but are not observed to an appreciable extent from the alkane fuels." (2) In Kaiser et al 1992, 3 the abstract states, "Engineout hydrocarbon emissions for the napthenes contain 12% 1,3-butadiene and 5% benzene.…”