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DTSTART:20261008T071500Z
DTEND:20261008T080000Z
SUMMARY:CERE seminar by Ding Xiong - Experimental Investigation of Geochemical Rock-Fluid Interactions During Impure CO2 Storage
DESCRIPTION:<div><span class="s1" style="line-height: normal;"></span><span class="s2" style="line-height: normal;"><strong>Abstract</strong></span></div>\n<div><span class="s2" style="line-height: normal;"><strong>&nbsp;</strong></span></div>\n<div>Geological CO<span class="s3" style="line-height: normal;">2 </span>storage involves a sophisticated hierarchy of trapping mechanisms, including structural, residual, solubility, and mineral trapping. For a large-scale economic deployment of CO<span class="s3" style="line-height: normal;">2 </span>storage, the injected CO<span class="s3" style="line-height: normal;">2 </span>streams typically contain various reactive impurities.</div>\n<div>&nbsp;</div>\n<div>Consequently, the presence of impurities, such as SOx and NOx, must be carefully accounted for, as their reactive nature can significantly influence the geochemical stability of the storage reservoir</div>\n<div>&nbsp;</div>\n<div>This work investigated batch geochemical reactions associated with impurities in CO<span class="s3" style="line-height: normal;">2 </span>stream. Most existing batch studies have primarily utilized low-salinity brines and relatively high impurity concentrations to simulate underground rock-fluid interactions.</div>\n<div>&nbsp;</div>\n<div>This study addresses this knowledge gap by targeting some typical Danish storage conditions, specifically employing a high saline environment (20 wt% NaCl) to investigate the geochemical interactions triggered by the injection of a CO<span class="s3" style="line-height: normal;">2 </span>stream containing 1000 ppm impurity.</div>\n<div>&nbsp;</div>\n<div>By employing various characterization techniques for rock and aqueous phases, including XRD, XRF, SEM, ICP-MS and OES, this research provides a more realistic assessment of how trace reactive compounds influence rock-fluid geochemical process in deep saline aquifers.<span class="Apple-converted-space"></span></div>\n<br />
X-ALT-DESC;FMTTYPE=text/html:<div><span class="s1" style="line-height: normal;"></span><span class="s2" style="line-height: normal;"><strong>Abstract</strong></span></div>\n<div><span class="s2" style="line-height: normal;"><strong>&nbsp;</strong></span></div>\n<div>Geological CO<span class="s3" style="line-height: normal;">2 </span>storage involves a sophisticated hierarchy of trapping mechanisms, including structural, residual, solubility, and mineral trapping. For a large-scale economic deployment of CO<span class="s3" style="line-height: normal;">2 </span>storage, the injected CO<span class="s3" style="line-height: normal;">2 </span>streams typically contain various reactive impurities.</div>\n<div>&nbsp;</div>\n<div>Consequently, the presence of impurities, such as SOx and NOx, must be carefully accounted for, as their reactive nature can significantly influence the geochemical stability of the storage reservoir</div>\n<div>&nbsp;</div>\n<div>This work investigated batch geochemical reactions associated with impurities in CO<span class="s3" style="line-height: normal;">2 </span>stream. Most existing batch studies have primarily utilized low-salinity brines and relatively high impurity concentrations to simulate underground rock-fluid interactions.</div>\n<div>&nbsp;</div>\n<div>This study addresses this knowledge gap by targeting some typical Danish storage conditions, specifically employing a high saline environment (20 wt% NaCl) to investigate the geochemical interactions triggered by the injection of a CO<span class="s3" style="line-height: normal;">2 </span>stream containing 1000 ppm impurity.</div>\n<div>&nbsp;</div>\n<div>By employing various characterization techniques for rock and aqueous phases, including XRD, XRF, SEM, ICP-MS and OES, this research provides a more realistic assessment of how trace reactive compounds influence rock-fluid geochemical process in deep saline aquifers.<span class="Apple-converted-space"></span></div>\n<br />

URL:https://www.cere.dtu.dk/da/Calendar/2026/10/CERE-seminar-by-Ding-Xiong-Experimental-Investigation-of-Geochemical-Rock-Fluid-Interactions-During-
DTSTAMP:20261006T045300Z
UID:{C901E159-FBDF-427B-BEB4-413CD6CC3694}-20261008T071500Z-20261008T071500Z
LOCATION: Building 229, Room 003
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