Formaldehyde Formation in Large Bore Engines Part 2: Factors Affecting Measured CH2O

Author:

Olsen Daniel B.1,Mitchell Charles E.1

Affiliation:

1. Engines and Energy Conversion Laboratory, Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523

Abstract

Current research shows that the only hazardous air pollutant of significance emitted from large bore natural gas engines is formaldehyde CH2O. A literature review on formaldehyde formation is presented focusing on the interpretation of published test data and its applicability to large bore natural gas engines. The relationship of formaldehyde emissions to that of other pollutants is described. Formaldehyde is seen to have a strong correlation to total hydrocarbon (THC) level in the exhaust. It is observed that the ratio of formaldehyde to THC concentration is roughly 1.0–2.5 percent for a very wide range of large bore engines and operating conditions. The impact of engine operating parameters, load, rpm, spark timing, and equivalence ratio, on formaldehyde emissions is also evaluated. [S0742-4795(00)01004-8]

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Reference25 articles.

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2. Skoog, D. A., and Leary, J. J., 1992, Principles of Instrumental Analysis, 4th ed., Saunders College Publishing.

3. Lipari, F., and Swarin, S. J., 1982, “Determination of Formaldehyde and Other Aldehydes in Automobile Exhaust with an Improved 2,4-Dinitrophenylhydrazine Method,” J. Chromatogr., 247, pp. 297–206.

4. Ogle, et al., 1995, “Measurement of Aldehydes in Internal Combustion Engine Exhaust,” GRI Air Toxics Conference, Denver, CO.

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