Reducing Emissions from EAF Flue Gas Incinerator After Addition of Recycled Material
Hannus, Jesper (2021)
2021
Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2021120358772
https://urn.fi/URN:NBN:fi-fe2021120358772
Tiivistelmä
The goal of this project, done in collaboration with Paroc at their plant in Pargas, was to see how the introduction of recycled stone wool would affect the emissions released by the melting process and which operating parameters in their flue gas incinerator could be changed to minimize fuel consumption while not affecting the emissions in a negative way.
The test was done by doing emissions measurements during one of the test runs while adding recycled material. These test results where then used to create a theoretical model of the incinerator and its reactions. Using this model different scenarios were simulated to see how it affected the operation.
The results were very promising, showing that it is possible to minimize the operating cost while not affecting the emissions in a negative way. Because by lowering the excess air level, the needed amount of fuel would be lower, but the flue gases would still fully oxidize, which would lead to lower fuel costs and lower amounts of emissions from the fuel burning.
The test was done by doing emissions measurements during one of the test runs while adding recycled material. These test results where then used to create a theoretical model of the incinerator and its reactions. Using this model different scenarios were simulated to see how it affected the operation.
The results were very promising, showing that it is possible to minimize the operating cost while not affecting the emissions in a negative way. Because by lowering the excess air level, the needed amount of fuel would be lower, but the flue gases would still fully oxidize, which would lead to lower fuel costs and lower amounts of emissions from the fuel burning.