60 https://www.uni-bremen.de/geochemie-und-hydrogeologie/team/dr-christian-hansen/hydrothermal-lab Diese Seite stellt Batch- und Durchflussreaktoren vor welche im Hydrothermallabor zur Verfügung stehen. de Universität Bremen Thu, 18 Jun 2026 16:39:07 +0200 Thu, 18 Jun 2026 16:39:07 +0200 Universität Bremen content-576887 Fri, 06 Mar 2026 12:24:56 +0100 https://www.uni-bremen.de/geochemie-und-hydrogeologie/team/dr-christian-hansen/hydrothermal-lab#c576887 <p>This fle­xi­ble re­ac­tion cell set­up was in­iti­al­ly de­scri­bed by Dick­son et al. (1963) and la­ter si­gni­fi­cant­ly mo­di­fied by Sey­fried et al. (1979, 1987). It can be uti­li­zed to in­ves­ti­ga­te equi­li­bri­um pro­ces­ses that oc­cur wi­t­hin hydro­ther­mal sys­tems. Flu­id and so­lid re­ac­tants re­si­de wi­t­hin a cor­ro­si­on re­sis­tant fle­xi­ble re­ac­tion cell made of gold or ti­ta­ni­um (Wu et al. 2016). Pres­su­re and tem­pe­ra­tu­re can be ad­jus­ted in­de­pen­dent­ly up to a le­vel of 50 MPa and 400 °C. The set­up al­lows for con­co­mitant flu­id sam­pling and so­lid re­ac­tants can be re­co­ve­r­ed upon ter­mi­na­ti­on of an ex­pe­ri­ment. Four cust­o­mi­zed au­to­cla­ve sys­tems are avail­able in the Hydro­ther­mal Lab (Hy­Lab) of the Pe­tro­lo­gy of the Oce­an Crust re­se­arch group.</p> <ul> <li>Dickson FW, Blount CW and Tunell G (1963): Use of hydrothermal solution equipment to determine the solubility of anhydrate in water from 100°C to 275°C and from 1 bar to 1000 bars pressure. <em>American Journal of Science</em>. | <a href="http://www.ajsonline.org/content/261/1/61" target="_blank">doi:10.2475/ajs.261.1.61</a> |</li> <li>Seyfried WE, Gordon PC, Dickson FW (1979): A new reaction cell for hydrothermal solution equipment. <em>American Mineralogist</em>. |<a href="https://www.researchgate.net/publication/237537770_New_reaction_cell_for_hydrothermal_solution_equipment">PDF</a>|</li> <li>Seyfried WE, Janecky DR and Berndt ME (1987): Rocking autoclaves for hydrothermal experiments. II. The flexible reaction-cell system. <em>In: Hydrothermal Experimental Techniques</em>. <em>Wiley-Interscience Publications</em>. |<a href="https://www.researchgate.net/profile/D_Janecky/publication/283440294_Rocking_autoclaves_for_hydrothermal_experiments_II_The_flexible_reaction-cell_system/links/58210ee008aea429b29bf458/Rocking-autoclaves-for-hydrothermal-experiments-II-The-flexible-reaction-cell-system.pdf">PDF</a>|</li> <li>Wu SJ, Cai MJ, Yang CJ and Li KW (2016): A new flexible titanium foil cell for hydrothermal experiments and fluid sampling. <em>Review of Scientific Instruments</em>. | <a href="https://aip.scitation.org/doi/10.1063/1.4963700">doi:10.1063/1.4963700</a> |</li> </ul> Content content-576899 Fri, 06 Mar 2026 12:24:56 +0100 https://www.uni-bremen.de/geochemie-und-hydrogeologie/team/dr-christian-hansen/hydrothermal-lab#c576899 <p>This flow-through set­up was de­si­gned un­der the lead of <a href="https://www.ozeankruste.uni-bremen.de/index.php/en/staff/wolfachimkahl.html">Dr. Wolf-Achim Kahl</a> 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 ø 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.   </p> <ul> <li><strong>Kahl</strong>, W.-A., Hansen, C., and 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.<br /> | <a class="externalLink" href="https://se.copernicus.org/articles/7/651/2016/se-7-651-2016.pdf" target="_blank" title="Öffnet externen Link in neuem Fenster"> doi:10.5194/se-7-651-2016</a> |</li> </ul> Content