Article
Energy & Fuels
Wentao Gong, Eryk Remiezowicz, Philip Loldrup Fosbol, Nicolas von Solms
Summary: This study models CO2 conditioning processes for ship-based CCS sequestration using APSEN HYSYS V11, reviewing purification processes and comparing open-cycle and closed-cycle liquefaction approaches. It found that closed-cycle liquefaction requires less energy than open-cycle, and using ammonia as refrigerant is more energy efficient than propane. Liquefaction at 15 bar requires less energy than 7 bar.
Article
Energy & Fuels
Maziar Foroutan, Ehsan Ghazanfari, Amin Amirlatifi, Nicolas Perdrial
Summary: This study investigated the variations in pore-network, mechanical, and hydrological characteristics of two different sandstone specimens subjected to CO2-enriched brine injection. The results showed significant permeability enhancement, increased porosity, enhanced pore connectivity, and increased surface gas permeability during CO2-enriched brine injection. Additionally, changes in mechanical characteristics of the specimens were observed, with mineral dissolution causing mechanical weakening in both specimens. Conducting further experiments on sandstones with different mineralogies is necessary to confirm the repeatability and statistical significance of the obtained results.
GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT
(2021)
Article
Energy & Fuels
Haiyang Zhang, Mohammed Al Kobaisi, Muhammad Arif
Summary: Rock wettability plays a crucial role in the fate of injected CO2, affecting trapping capacity and containment security. Field-scale numerical simulations reveal that wettability and injection rate strongly influence CO2 migration and storage efficiency. Water-wet sandstone exhibits 42% higher residual trapping compared to CO2-wet sandstone, and longer injection durations decrease residual trapping while increasing solubility trapping.
Article
Green & Sustainable Science & Technology
J. Sonke, W. M. Bos, S. J. Paterson
Summary: Carbon Capture and Storage (CCS) is a crucial technology for reducing emissions from large-scale fossil fuel use. It involves capturing CO2 from energy and industrial sources, treating it to remove impurities, and injecting it into storage sites for long-term isolation. The impurity of CCS CO2 varies depending on the source and capture technology, affecting materials selection and corrosion control.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Green & Sustainable Science & Technology
Jie Lu, Yajing Li, Boyang Li, Qingyong Yang, Fang Deng
Summary: A system that utilizes liquid ammonia cold energy for CO2 BOG re-liquefaction process is designed, which can save up to 43.30% of power consumption and effectively utilize the cold energy. The system has good economic benefits throughout the whole journey of the ship.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Green & Sustainable Science & Technology
Nial Smith, Paul Boone, Adegbenro Oguntimehin, Gijs van Essen, Rong Guo, Michael A. Reynolds, Luke Friesen, Maria-Constanza Cano, Simon O'Brien
Summary: This paper presents the design, execution, and results of the initial halite remediation treatment at the Quest CCS facility. Significant injectivity reductions in the CO2 injection wells were observed due to the precipitation of halite caused by the evaporation of water into the dry CO2. The field treatment involved injecting a water-based fluid to dissolve the halite precipitate, and the effectiveness of the treatment was evaluated through skin analysis and injectivity trends.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2022)
Article
Chemistry, Multidisciplinary
Erfan Mohammadian, Fahimeh Hadavimoghaddam, Mahdi Kheirollahi, Mehdi Jafari, Chenlu Xu, Bo Liu
Summary: CO2 sequestration is an anticipated method to reduce the harmful levels of CO2 in the atmosphere, and injecting CO2 into oceans is of great significance due to their large sequestration capacity. However, concerns about changes in water pH exist. This study experimentally measured pH and solubility under various conditions and developed a machine learning model to predict pH accurately. The study provides insights into interactions and mechanisms involved in ocean sequestration, which can aid in future large-scale operations.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Chemistry, Multidisciplinary
Hye-Seung Lee, Jinhyung Cho, Young-Woo Lee, Kun-Sang Lee
Summary: The study demonstrates that impurities in CO2 streams can have an impact on enhanced oil recovery and carbon capture and storage performance. Different types and concentrations of impurities affect the maximum miscibility pressure (MMP) of the oil-gas mixture, leading to decreased displacement efficiency and reduced oil density.
APPLIED SCIENCES-BASEL
(2021)
Article
Engineering, Chemical
Le Quynh Hoa, Ralph Baessler, Dirk Bettge, Enrico Buggisch, Bernadette Nicole Schiller, Matthias Beck
Summary: Representative low-cost materials were embedded in mortar to mimic the casing-mortar interface in injection wells. Two types of cement were investigated for their corrosion resistance, and exposure tests revealed unexpected corrosion types on steel surfaces. Surface analysis and element mapping were used to trace chloride intrusion and corrosion process on exposed specimens.
Article
Green & Sustainable Science & Technology
Egbert van Riet, Jeroen Van Wittenberghe, Dennis Van Hoecke, Roel Roijmans, Marc Vanderschueren, Phillipe Thibaux
Summary: Carbon Capture and Underground Storage (CCS) is an effective solution for reducing CO2 emissions. This study examines the suitability of premium threaded connections for casing and tubing tubulars used in CCS wells. The results show that these connections can be used for CCS service, provided the materials are suitable.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2023)
Article
Energy & Fuels
Nicholas Thompson, Jamie Stuart Andrews, Tore Ingvald Bjornara
Summary: Thermal effects induced by significant temperature differences during CO2 injection must be considered for understanding mechanical integrity. Studying undrained effects in low permeability caprock and pressure communication between caprock and storage sands provides insights for field development planning to mitigate negative effective stress conditions. The observations build confidence in the caprock/seal system integrity.
Article
Chemistry, Multidisciplinary
Marcos Vitor Barbosa Machado, Mojdeh Delshad, Kamy Sepehrnoori
Summary: This study found that using horizontal wells can enhance the trapping of CO2 in geological storage and reduce the risk of CO2 penetration through the caprock. Horizontal wells provide a safe approach to carbon sequestration and a practical method for designing the optimal length of the wells.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Mohamed Gamal Rezk, Ahmed Farid Ibrahim, Abdulrauf R. Adebayo
Summary: This study investigates the effect of impurities on the reactive transport of CO2 during geo-sequestration and finds that injecting impurities (H2S and CH4) with CO2 can change the migration, mineral dissolution and precipitation, and cap rock integrity, and enhance mineral trapping. It suggests that storing impure CO2 can enhance mineral trapping, maintain cap rock sealing, and change CO2 distribution in porous media while reducing separation costs.
Article
Engineering, Environmental
Yuting Zhang, Christopher Jackson, Samuel Krevor
Summary: This study estimates the amount of CO2 stored by facilities since 1996 based on publicly available sources and categorizes them into three assurance levels. The storage estimates indicate significant climate relevance comparable to renewable energy emissions impacts. The widely used capture capacity is not a reliable proxy for storage volumes, emphasizing the need for uniform reporting with quality assurance.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2022)
Article
Green & Sustainable Science & Technology
Erin Smith, Jennifer Morris, Haroon Kheshgi, Gary Teletzke, Howard Herzog, Sergey Paltsev
Summary: This paper assesses the range of CO2 transport and storage costs and evaluates their impact on economy-wide modeling results of decarbonization pathways. The study finds that variability in transport and storage costs significantly affects the global cumulative CO2 captured and stored, with different regions showing varying sensitivity to these costs. Further analysis is needed to quantify CO2 transport and storage costs at a regional level.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)