CO Emissions from Gas Engines Operating on Biomass Producer Gas

Jesper Ahrenfeldt, T. K. Jensen, Ulrik Birk Henriksen, Benny Gøbel, Jesper Schramm

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Abstract

High carbon monoxide (CO) emission from gas engines fueled by producer gas is a concerning problem in the struggle to make biomass gasification for heat and power production a success. CO emissions from engines operating on biomass producer gases are high, especially at very lean conditions where the emissions exceed the regulated limit significantly. The high CO emissions are mainly due to the high content of CO in the fuel and can ¿ in origin ¿ be compared with the emission of unburned hydrocarbons (UHC) from natural gas engines, thus CO emissions from producer gas engines are a measure of fuel passing unburned through the combustion. Measurements of the slip of the producer gas fuel components CO and CH4 showed that these are of similar order. When the environmental effect of the emissions is discussed, unburned hydrocarbons in the form of methane is a strong greenhouse gas (21 times higher than CO2) while CO only indirectly through photochemical reactions is involved in the production of the greenhouse gas ozone.
Original languageEnglish
Title of host publicationProcedings of 2. World Conference and Technology Exhibition on Biomass for Energy and Industry
EditorsW.P.M. van Swaaij, T. Fjällström, P. Helm, A. Grassi
Place of PublicationRome, Italy
Publication date2004
Publication statusPublished - 2004
Event2nd World Conference and Technology Exhibition on Biomass for Energy, Industry and Climate Protection - Rome, Italy
Duration: 10 May 200414 May 2004
Conference number: 2

Conference

Conference2nd World Conference and Technology Exhibition on Biomass for Energy, Industry and Climate Protection
Number2
CountryItaly
CityRome
Period10/05/200414/05/2004

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