eprintid: 15927 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/01/59/27 datestamp: 2023-11-10 03:30:33 lastmod: 2023-11-10 03:30:33 status_changed: 2023-11-10 02:00:46 type: article metadata_visibility: show creators_name: Ayub, S.A. creators_name: Tsegab, H. title: Experimental Evaluation of CO2-Rich Water Interaction with Paleogene Basalt Samples for Mineral Carbonation Potential, Malaysia ispublished: pub note: cited By 0 abstract: CO2 is the leading anthropogenic greenhouse gas (GHG) responsible for global warming. Mitigating the effect of anthropogenic CO2 emission is among the priority. As Malaysia is one of the largest CO2 emitters among the four ASEAN countries, identifying a potential geological formation for CO2 storage is compulsory in order to minimize the environmental effect of emitted CO2. Hence, fundamental research in which fluid-rock interaction of Paleogene basalt samples was assessed in the context of Malaysia�s need to identify any potential host rock for mineral carbonation. For this purpose, laboratory experiments were conducted, including CO2 injection using high pressure and high temperature (HPHT) reactor, geochemical analysis on water samples (leachates) using atomic absorption spectroscopy (AAS), and mineralogical analysis on the reacted rock samples using X-Ray Diffraction (XRD) techniques. During the fluid-rock interaction experiment, the water chemistry and mineralogical changes in the rock samples were evaluated at 914 psi and 3133 psi pressures and 100oC and 120oC temperature conditions. The concentration of Ca, Mg, and Fe released into the solution increased when the pressure of CO2 applied increased. Yet, the concentration of these elements showed a non- consistent trend with the rise of the experimental temperature. These results were influenced by the reaction of silicate and carbonate minerals during the experiment. This finding may provide clues into the pressure and temperature values required for geological CO2 sequestration in the Malaysian geological settings. © 2021. All rights reserved. date: 2021 publisher: Slovnaft VURUP a.s official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100559777&partnerID=40&md5=76d168092a6514ed47e0b5bd05ae6a98 full_text_status: none publication: Petroleum and Coal volume: 63 number: 1 pagerange: 216-223 refereed: TRUE issn: 13377027 citation: Ayub, S.A. and Tsegab, H. (2021) Experimental Evaluation of CO2-Rich Water Interaction with Paleogene Basalt Samples for Mineral Carbonation Potential, Malaysia. Petroleum and Coal, 63 (1). pp. 216-223. ISSN 13377027