Determination of COdiffusivity in subsurface systems using molecular dynamics simulation

Oluwaseyi Aliu*, Hamzah Sakidin, Jalal Foroozesh, Surajudeen Sikiru

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The urgency in demand for global warming alleviation has necessitated more research into carbon-dioxide diffusion (CO2) both for sequestration and enhanced oil recovery. Captured atmospheric CO2 can be stored underground to leave a haven for the populace. CO2 diffusivity in oil-brine-rock systems at various pressures and temperatures and also solely in brine with different ions but at a fixed temperature and pressure are studied. Increases in pressure and temperature leads to increase in diffusion coefficient of CO2 in oil-brine-rock systems. On the other hand, in CO2-brine system, the variations of ions affect CO2 diffusion while Ca ion appears to result in the highest diffusivity of CO2 in brine thereby, suggesting saline aquifers with Ca ion as the best choice for CO2 sequestration.

Original languageEnglish
Title of host publicationProceedings of the 27th National Symposium on Mathematical Sciences, SKSM 2019
EditorsSiti Nur Iqmal Ibrahim, Noor Akma Ibrahim, Fudziah Ismail, Lai Soon Lee, Wah June Leong, Habshah Midi, Nadihah Wahi
PublisherAmerican Institute of Physics Inc.
Number of pages10
ISBN (Electronic)9780735420298
Publication statusPublished - 6 Oct 2020
Event27th National Symposium on Mathematical Sciences, SKSM 2019 - Bangi, Selangor, Malaysia
Duration: 26 Nov 201927 Nov 2019

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference27th National Symposium on Mathematical Sciences, SKSM 2019
CityBangi, Selangor


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