Article
Thermodynamics
Federico Cao, Dmitry Eskin, Yuri Leonenko
Summary: Carbon dioxide sequestration is an effective technology for mitigating greenhouse gas emissions, but uncertainties regarding the risks of leakage remain. Increasing underground disposal security by dissolving CO2 in brine and re-injecting it underground can prevent leaks. This technique can expand the availability of worldwide aquifers for carbon sequestration.
Article
Geochemistry & Geophysics
Nathan Moodie, Wei Jia, Richard Middleton, Sean Yaw, Si-Yong Lee, Ting Xiao, David Wheatley, Peter Steele, Rich Esser, Brian McPherson
Summary: Geologic Carbon Storage (GCS) is a promising technology for effectively and permanently storing large volumes of anthropogenic CO2. A regional GCS analysis was conducted in central Utah to assess the efficacy of storing CO2 emissions from power generation and heavy industries. The results indicate that the area has the capacity to securely store a significant amount of CO2, making it suitable for commercial-scale GCS.
Article
Chemistry, Physical
Priyanka Muhunthan, Oscar Paredes Mellone, Thomas Kroll, Dimosthenis Sokaras, Matthias Ihme
Summary: This study combines X-ray Raman spectroscopy, molecular dynamics simulations, and density functional theory calculations to characterize the local electronic structure of supercritical CO2. It finds that X-ray Raman spectroscopy is a sensitive tool for studying the electronic properties of CO2 under challenging experimental conditions and provides unique insights into the electronic structure of supercritical fluids.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Environmental Sciences
Guangyou Zhu, Zhenlun Wei, Xiaoyong Wu, Yubiao Li
Summary: Geologic carbon sequestration (GCS) is a promising strategy to reduce the harm of CO2. This study investigated the potential of GCS and the effects of boundary dissolution on calcite and dolomite at an atomic level. The results provided new insights into the mechanisms of the GCS process and the long-term evolution of calcite and dolomite in deep reservoirs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Wendong Wang, Qiuheng Xie, Senyou An, Sahar Bakhshian, Qinjun Kang, Han Wang, Xinyue Xu, Yuliang Su, Jianchao Cai, Bin Yuan
Summary: This article discusses the role of multiphase flow and reactive transport in geological carbon sequestration and introduces the methods of pore-scale simulation and continuum modeling. It elaborates on four sequential mechanisms of CO2-brine-rock interaction and presents the risks of leakage during carbon sequestration and CO2-enhanced oil recovery. The challenges and future directions in pore-scale modeling and the field of carbon sequestration are also discussed. This review is expected to be beneficial for researchers interested in pore-scale simulations, carbon sequestration, and related disciplines.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geochemistry & Geophysics
Jia Kong, Baiquan Lin, Chuanjie Zhu, Ting Liu, Xiangguo Kong
Summary: In this study, a dynamic elastic modulus model was established to analyze the effect of gas pressure on the elastic modulus of coal. A permeability model considering internal swelling deformation was also constructed. The rationality of the models was validated through laboratory experiments.
Article
Chemistry, Multidisciplinary
Zhihao Fu, Baoshan Jia, Yanming Wang, Weipeng Tian
Summary: This study investigates the effect of CO2 injection pressure on gas migration characteristics and coalbed methane (CBM) extraction. Experimental tests were conducted using a CH4 to CO2 replacement platform under different CO2 injection pressures. The results indicate that gas migration rate increases with higher injection pressure, and CH4 desorption rate and coal seam permeability display different stages of decline and stability. Higher injection pressure leads to increased CH4 desorption volume and CO(2) sequestration volume, and improved CH4 extraction efficiency. These findings are of great importance for optimizing CO2 injection pressure and enhancing CBM extraction.
Article
Agriculture, Multidisciplinary
Summer R. A. Lockhart, Kent Keller, David Evans, Lynne A. Carpenter-Boggs, David R. Huggins
Summary: Organic agriculture can lead to higher concentrations and production rates of soil CO2 compared to no-till agriculture. However, the effect of agricultural management techniques on soil CO2 is not well understood.
AGRICULTURE ECOSYSTEMS & ENVIRONMENT
(2023)
Article
Engineering, Environmental
Dominic Woolf, Johannes Lehmann, Stephen Ogle, Ayaka W. Kishimoto-Mo, Brian McConkey, Jeffrey Baldock
Summary: Stabilizing the global climate requires reducing greenhouse gas emissions and removing CO2 from the atmosphere. GHG accounting protocols are needed to quantify the mitigation impact of CO2 removal practices like biochar sequestration. Research shows that the carbon content of biochar varies with feedstock and production conditions, with a significant portion remaining unmineralized in soil for long-term sequestration.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Energy & Fuels
Jolante van Wijk, Noah Hobbs, Peter Rose, Michael Mella, Gary Axen, Evan Gragg
Summary: This study analyzes natural CO2 migration paths in Farnsworth Oil Field, northern Texas, finding it unlikely for CO2 to escape via geologic pathways such as tectonic faults. The study points out the risk of CO2 escape from abandoned or aged wellbores in the reservoir formation.
Article
Energy & Fuels
Jizhao Xu, Cheng Zhai, Shuxun Sang, P. G. Ranjith, Xu Yu, Yong Sun, Yuzhou Cong, Wei Tang, Yangfeng Zheng
Summary: The study investigated the effects of liquid CO2 on coal, established a brittleness index calculation model, and found that increasing CO2 parameters led to a decrease in compressive strength of coal, while the strain did not show a noticeable trend, with coal anisotropy and CO2 adsorption affecting these results.
Article
Environmental Sciences
Duoxing Yang, Lianzhong Zhang
Summary: The paper examines the relationship between crustal tilt and carbon dioxide leakage, highlighting a significant correlation between the two. Through studying a natural carbon-dioxide-rich formation with faults, it is found that an increase in carbon dioxide leakage levels may be caused by changes in fault architecture and permeability structure surrounding the faults.
AEROSOL AND AIR QUALITY RESEARCH
(2021)
Article
Green & Sustainable Science & Technology
Brandon Schwartz
Summary: This study explores the magnitude and lateral extent of the pressure plume generated by carbon dioxide injection by analyzing six subsurface variables. The results show that two grouped variables have a significant impact on pressure evolution and can be used to predict reservoir behavior during injection and after injection.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Construction & Building Technology
Rajeev Roychand, Jie Li, Shannon Kilmartin-Lynch, Mohammad Saberian, Jiasheng Zhu, Osama Youssf, Tuan Ngo
Summary: The production of concrete heavily relies on mining natural resources, specifically natural aggregates which make up the majority of the concrete volume. To promote sustainability, it is necessary to explore alternative waste materials that can replace traditional raw materials. Biochar derived from organic waste has been shown to improve the strength properties of concrete. This research focuses on using wood biochar as a replacement for fine aggregates and demonstrates significant improvements in compressive strength results.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Energy & Fuels
Natasha Trujillo, Dylan Rose-Coss, Jason E. Heath, Thomas A. Dewers, William Ampomah, Peter S. Mozley, Martha Cather
Summary: By combining observations and testing results at different scales, the study assessed the sealing integrity of the caprock system in the Farnsworth Unit in Texas during underground CO2 storage and enhanced oil recovery activities.