Unburned Methanol and Formaldehyde Emission Measurements from Methanol - Flexible Fuel Vehicle (FFV)

Paper #:
  • 912557

Published:
  • 1991-11-01
Pages:
6
Abstract:
In the quantitative analysis of oxygenated exhaust emissions (unburned methanol and formaldehyde) from methanol fueled vehicles, the oxygen contained in oxygenated exhaust emissions results in undesirable response to a conventional FID (Flame Ionization Detector) analyzer and hence leads to erroneous HC (Hydrocarbons) reading.For correct measurement of various HC, including oxygenated HC, emitted from FFV (a Flexible Fuel Vehicle), a measurement method of real HC emissions should be established.A measuring method by GC (Gas Chromatography) and HPLC (High Performance Liquid Chromatography) is used in this paper to analyze unburned methanol and formaldehyde in the exhaust emissions.From the emission test of FFV, it is observed that unburned methanol and formaldehyde are emitted mostly during engine warm-up period, and that formaldehyde emission level is proportional to engine displacements.
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