Study on water/rock effect of CO2 mineralization sequestration system development

Currently, Taiwan is actively spearheading the development of technologies associated with achieving net-zero emissions. The government has set ambitious targets aimed at reducing greenhouse gas emissions and steering toward a more sustainable, low-carbon economy. But suffers from high urbanization and densely populated, the CO₂ sequestration site is still needing careful evaluation. Whether geological sequestration storage or mineralization sequestration, the lab work for feasibility assessment is an indispensable key step before pilot. In this work we build up a tandem reaction system which the autoclave can be used to high-pressure and well-temperature controlled. Continuously flux CO₂ gas to maintain system pressure for simulate carbon dioxide perfusion. A long-term water/rock reactions were performed in different minerals or water bodies. The mass flow controller (MFC) was set up to control the flow rate, while a pressure sensor and a pressure gauge were set up inside the autoclave for on-line and real-time pressure measurements during the experiment. The results were carried out by Scanning Electron Microscope-Energy Dispersive X-Ray Spectrometry (SEM-EDS) and Thermogravimetric analysis (TGA) for evaluating CO₂ mineralization sequestration possibility. Most importantly, this work is a very limited research case for realistic water/rock reaction parameter experiment in Taiwan. We looking forward this contribution to be representative study for further core-flooding experiment.