Methanol Measurement in Auto Exhaust Using a Gas-Filter Correlation Spectrometer 852137
Spectroscopic methods offer an alternative to wet chemical methods for analysis of methanol emissions from automobiles. The gas filter correlation infrared optical analysis approach appears very promising. This report describes the gas correlation optical system constructed to analyze methanol. The operating characteristics of the system and test data of measurements made on exhaust from a methanol-fueled vehicle are presented. The methanol system has a detection limit of about 0.5 ppm and the system produces a highly predictable output with a calibration curve having a data fit with a multiple correlation coefficient of 0.999. The system also displays excellent rejection to interferences normally present in automobile exhaust.
Citation: Gabele, P. and Cha, S., "Methanol Measurement in Auto Exhaust Using a Gas-Filter Correlation Spectrometer," SAE Technical Paper 852137, 1985, https://doi.org/10.4271/852137. Download Citation
Author(s):
Peter A. Gabele, Soyoung Cha
Affiliated:
Mobile Source Emissions Research Branch, Environmental Protection Agency, Research Triangle Park, NC, Northrop Services, Inc., Research Triangle Park, NC
Pages: 11
Event:
1985 SAE International Fall Fuels and Lubricants Meeting and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1986 Transactions - Fuels and Lubricants-V94-7
Related Topics:
Exhaust emissions
Methanol
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