"Microbial Mineralization of Carbon Dioxide in Depleted Oilfields" (2024) https://agu.confex.com/agu/fm23/meetingapp.cgi/Paper/1274396 https://agu.confex.com/ag

"Microbial Mineralization of Carbon Dioxide in Depleted Oilfields" (2024) https://agu.confex.com/agu/fm23/meetingapp.cgi/Paper/1274396 https://agu.confex.com/agu/fm23/meetingapp.cgi/Paper/1274396 : > Abstract: Carbon dioxide can be sequestered by conversion into carbonate minerals. Microbes accelerate this process using an enzyme called carbonic anhydrase. Carbonic acid solutions in Icelandic basalts showed inorganic carbonation in as little as two years. Adding microbes may reduce carbonation times to months or weeks. Depleted oil and gas fields, which often contain usable, existing wells, could also sequester carbon dioxide. [...] Carbon dioxide can be sequestered by conversion into carbonate minerals. Microbes accelerate this process using an enzyme called carbonic anhydrase. Carbonic acid solutions in Icelandic basalts showed inorganic carbonation in as little as two years. Adding microbes may reduce carbonation times to months or weeks. Depleted oil and gas fields, which often contain usable, existing wells, could also sequester carbon dioxide. [...] > Preliminary results indicate that 500 bars at 80℃ are optimum parameters for the microbes to produce calcite crystals on diopside. Visible carbonates were present within ten days, much faster than inorganic processes.