Soot Control by Fuel Additives -- A Review.
Abstract
A review of studies conducted in practical combustion systems such as oilfired domestic and utility boilers, gas turbines, and diesel engines has demonstrated that metallic fuel additives can be effective in reducing soot emissions. Manganese, iron, and barium are the metals most often reported to be highly effective, although problems with metal oxide deposits on combustor surfaces sometimes prohibit their use. Evaluation of laboratory burner flame experiments revealed three distinct mechanisms by which the various metallic additives function to remove soot. Several mathematical models of soot reduction through additive use are discussed. Iron additives and their combustion products are relatively non-toxic, whereas the popular manganese additives and their oxides are fairly hazardous. Generally, only water soluble barium compounds are toxic, and these typically constitute only 25 percent of the barium compounds in diesel engine exhaust. Additives are only recommended for short-term use, combustor design modifications being the economically preferred long-term solution. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1979
- Accession Number
- ADA074870
Entities
People
- Jack B. Howard
- William J. Kausch Jr
Organizations
- University of Dayton