Reduced CO2 emissions from LKABs rotary kiln process – a study of the effect of alternative fuels
Research Project, 2013
– 2016
LKABs iron ore production facilitites in Kiruna and Svappavaara is based on the rotary kiln process. This process is of key importance to LKABs iron production, but is at the same time related to significant carbon dioxide emissions since coal is used as the primary fuel in the process. The layout of LKABs rotary kiln processes is based on many years of experience. To reduce emissions, such as the introduction of new fuels, require extensive research and development efforts. The presently proposed project, which is a collaboration between LKAB and the Division of Energy Technology, Chalmers University of Technology, is based on a comprehensive experimental work combined with combustion and heat transfer modeling. The aim is to generate the knowledge required for introduction of new fuels, without risking the quality of the product. The project has a unique access to experimental facilities as well as to world leading competence within the engineering fields: combustion chemistry and radiative heat transfer. The overall aim with the project is to enable significant process improvements, which are linked to the choice of fuel in the rotary kiln process: 1) significantly reduced carbon dioxide emissions (from coal to alternative fuels, including biogenic fuels), 2) reduced NOx emission by means of primary measures, and, 3) improved knowledge about process control with respect to heat transfer conditions.
Participants
Klas Andersson (contact)
Chalmers, Space, Earth and Environment, Energy Technology
Funding
Swedish Energy Agency
Project ID: 2012-009098
Funding Chalmers participation during 2013–2016
LKAB
Project ID: Roteringsugnsprocess
Funding Chalmers participation during 2013–2016