Scientific Publications

Temperature and velocity dependent drift-flux model for gas–liquid flow in geothermal systems

Geothermics, January 2027

Authors: Adolph Bravo Jr., Erlend Straume, Samuel Scott, Andri Stefánsson.

Numerical modeling of a fixed-bed lithium adsorption column using manganese-chitosan based ion sieve: Evaluation for industrial scalability in geothermal sites

Chemical Engineering Journal Advances, November 2026

Authors: Karen J. Silgado-Correa, Stefan Kranz, Jörg Zotzmann, Marcus Petermann, Katrin Kieling, Simona Regenspurg.

Perspectives of co-extraction of geothermal heat with the critical raw materials lithium and copper from sedimentary basin fluids on the example of the North German Basin

Geothermics, September 2026

Authors: Simona Regenspurg, Elisabeth Eiche, Katharina Alms, Ralph Bäßler, Guido Blöcher, Valentin Goldberg, Hannes Hofmann, Katrin Kieling, Christine Rösch, Lars Rüpke, Sylvia Sander, André Stechern, Katharina Sielemann, Philipp Weis.

Fluid–CO₂ injection in a hypersaline volcanic systems: a reactive transport and experimental evaluation with application to the Tuzla Geothermal Field, Türkiye

Geothermal Energy, 14(1), 2, January 2026.

Authors: Serhat Tonkul, Selçuk Erol, Alper Baba and Simona Regenspurg.

Geothermal-Flowloop (GFL): Investigating multiphase flows under geothermal conditions

Geothermics, Volume 134, January 2026, 103500

Authors: Adolph Bravo Jr., Erlend Straumea, Ben Robinsonb, Namrata Kaleb, Harry Fromentb, Amir Shamsab, Maria Eleni Mitzithrac, Barnaby E.Kingd, Andri Stefánssona.

Critical metal inventory of alkaline lakes of Northern Tanzania: Geochemical controls on rare earth element and Sc, W, and U distribution

Chemical Geology, Volume 699, 5 January 2026, 123159

Authors: T. Kreitsmann, L. Klose, D. Kraemer, A. Mahecha, S. Regenspurg, F. D. H. Wilke, M. Bau

Thesis: 3D modeling and defining geothermal fluid properties at saline geothermal system, western Turkey

December 2025

Author: Serhat Tonkul

Effect of degassing on scaling in hypersaline system: Tuzla geothermal field, Turkey

Geothermal Energy, Elsevier January 2025

Authors: Serhat Tonkul, Laurent André, Alper Baba, Mustafa M. Demir, Simona Regenspurg, Katrin Kieling

One-step hydrothermal synthesis of spinel manganese oxide ion-sieve from commercial γ-MnO2 and its uptake performance for lithium

Chemosphere, Volume 369, December 2024, 143891

Authors: Seyra Toprak, Mustafa M. Demir

One-step hydrothermal synthesis of spinel manganese oxide ion-sieve from commercial γ-MnO2 and its uptake performance for lithium

Chemosphere, Volume 369, December 2024, 143891

Authors: Seyra Toprak, Mustafa M. Demir

Lithium Extraction from Geothermal Brine using γ-MnO2: A Case Study for Tuzla Geothermal Power Plant

Heliyon, Volume 10, Issue 21, November 2024

Authors: S Toprak, Ç Öncel, S Yılmaz, A Baba, GA Koç, MM Demir

Geothermal Energy and Its Potential for Critical Metal Extraction — A Review

Energies 2023, 16(20), 7168

Authors: Szanyi, J., Rybach, L., Abdulhaq, H.A.