This flow-through setup was designed under the lead of Dr. Wolf-Achim Kahl and enables percolation experiments investigating the interdependencies of porosity, permeability, fluid flow rates as well as pore space geometry and their feedback relationship in the course of dissolution and precipitation reactions (Kahl et al. 2016). Rock cores (up to a diameter of 19 mm) or powder samples are confined within an X-ray transparent flow-trough reaction cell made of PEEK (polyetheretherketone). Temperature can be adjusted up to a level of 200 °C, while a fluid reactant can be forced through the solid reactant within the cell at pressures up to 10 MPa. While fluid samples can be drawn at any time, in addition, reaction progress can be monitored through repeated microtomographic scans (µ-CT). Three flow-through setups are available in the Hydrothermal Lab (HyLab) of the Petrology of the Ocean Crust research group.
Kahl W-A, Hansen C, Bach W (2016): A new X-ray-transparent flow-through reaction cell for a μ-CT-based concomitant surveillance of the reaction progress of hydrothermal mineral–fluid interactions. Solid Earth 7, 651-658.
| doi:10.5194/se-7-651-2016 |