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  4. Geothermal Fluids as a raw mineral resource: Chances and Challenges for a domestic lithium production

Geothermal Fluids as a raw mineral resource: Chances and Challenges for a domestic lithium production

16. 11. 2023 00:00 au 16. 11. 2023 00:00 (Europe/Zurich)

--Genève--

SÉMINAIRE ÉNERGIE – ENVIRONNEMENT

Conférences 2023-2024

Geothermal Fluids as a raw mineral resource: 

Chances and Challenges for a domestic lithium production 

Fabian Nitschke

Karlsruher Institut für Technologie (KIT)


Jeudi 16 novembre à 17h15

 

Université de Genève

66 boulevard Carl-Vogt, 1205 Genève

 Salle 1 (rez-de-chaussée)

 Conférence en présentiel suivie d’un apéritif

 

​Lien pour la diffusion en direct avec Zoom : https://unige.zoom.us/j/65489922494

ID de réunion : 654 8992 2494

Code secret : 345134

 ​ ​

L'orateur

 

Dr Fabian Nitschke is a Research Associate in the Department of Geothermal Energy and Reservoir Technology at the Karlsruher Institut für Technologie (KIT), Baden-Württemberg, Germany.

Nitschke's research focus on geothermal energy, geochemical exploration, raw materials in geothermal fluids (geothermal lithium), hydro‐geochemical modelling, Machine Learning applications to water chemistry. He is notably also co-author of the study on lithium deposits in the Upper Rhine Graben. 

He is currently working on two projects:
•  F4aT-Hydrauliklabor (Forced Fracture Fluid Flow and Transport)
•  MALEG (Machine Learning for Enhancing Geothermal Energy Production)

 

La conférence

 

The energy transition demands vital mineral resources, notably lithium, crucial for high‐energy-batteries. While it is primarily sourced from Australian hard rock and South American salars, exploring domestic deep geothermal fluids could serve as an alternative source to counter an anticipated deficit. This approach offers significant geostrategic advantages, with initial studies affirming economic viability. Direct Lithium Extraction (DLE) from geothermal fluids, known for its environmental impact, holds large potentials.

The research on geothermal lithium at KIT covers various aspects. An evaluation of the market situation, the geothermal resources, the currently installed capacities and the technical processes the extraction serve as a basis for an overview of the current state of the technology. An approach is presented which enables to produce a lithium concentrate and to overcome hydrochemical constraints (mineral scaling).

A new tool for exploration purposes was developed which uses AI‐methods to assess large hydrochemical datasets. Since knowledge of long‐term reservoir behavior as a consequence of lithium extraction is missing, a numerical chemical transport model was set up to investigate the impact of the reinjected lithium depleted brine on the lifetime output.

 

Conférences suivantes

  • 30 nov. 2023 : António Vallera (Université de Lisbonne) - Why we need battery swapping for the future transport and electric systems.
  • 14 déc. 2023 : Marjorie Perroud (Alpiq) - Conséquences du changement climatique sur la production hydroélectrique en milieu alpin: perspectives et gestion.

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