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Education/ Professional experience
| 2001–2009 | Gymnasium Dresden Cotta |
| 2010–2016 | Diploma’s degree program in Materials Science and Technology, with focus on non-ferrous metallurgy, Freiberg University of Mining and Technology |
| 2016 | Graduation (Dipl.-Ing.), title of thesis: Optimization of process parameters for the electrodeposition of brass on copper-plated steel rounds |
| 2016–2017 | Research associate at the Institute of Nonferrous Metallurgy and Purest Materials, Freiberg University of Mining and Technology, working group semiconductor materials, focus on magnetohydrodynamics |
| 2018–2022 | Senior Metallurgist at UrbanGold GmbH, field of recycling and process development |
| Since 05/2022 | PhD student and research associate at Institute of Nonferrous Metallurgy, University of Leoben |
PhD Thesis
Title: Influence of the Furnace Atmosphere on Pyrolysis Behavior and Refractory Technology in Aluminum Alloy Melting Plants
Achieving the goal of climate neutrality by 2040 will require far-reaching changes in various industrial processes. This includes the gradual decarbonization of a large number of fuel-fired furnaces, where natural gas is currently the main energy source. Electricity and hydrogen are possible alternatives.
However, the use of these two technologies still poses a number of challenges given the current state of the art. For example, alternative heating always leads to a change in the atmosphere in the units. Instead of CO₂, hydrogen is expected to increase the water vapor content of the furnace atmosphere. The effects of this on the pyrolysis process in shaft furnaces and two-chamber furnaces have not yet been investigated or published.
As part of the research, the influence of the changed furnace atmosphere on the pyrolysis processes and the current refractory concepts will be simulated and investigated. The knowledge gained in this way will form the basis for subsequent retrofitting of industrial plants.
Publications
Presentations
Büchner, K.: Investigation of the influence of furnace atmosphere on the pyrolysis behaviour of coated aluminum scraps. Light Metals Expert Meeting, Maasmechelen, Belgien, 2024
Büchner K.: Investigation of the influence of different parameters on the pyrolysis of coated aluminium scrap by thermogravimetry and optical evaluation, EMC 2023, Düsseldorf, Deutschland, 2023
Posters
Büchner K.: Process optimisation of aluminium recycling – Influence of the furnace atmosphere on the pyrolysis of aluminium scrap, Science 4 Technology@MUL, Leoben 2024
