Greenhouse Gases: Science and Technology最新文献

{"title":"Isotherms, Thermodynamics and Regeneration Studies of CO2 Adsorption on Activated Carbon Impregnated With Waste-Sourced Natural Amino Acids","authors":"Nur Syahirah Mohammed Hatta,&nbsp;Farihahusnah Hussin,&nbsp;Lai Ti Gew,&nbsp;Mohamed Kheireddine Aroua","doi":"10.1002/ghg.2354","DOIUrl":"https://doi.org/10.1002/ghg.2354","url":null,"abstract":"<p>This study investigated the CO₂ adsorption isotherms, thermodynamic properties and regeneration efficiency of palm shell activated carbon (AC) impregnated with waste-sourced natural amino acids from egg white (EW), namely, ACEW-30. Initially, the performance of ACEW-30 was compared with AC impregnated with fresh EW and synthetic amino acids using fixed-bed adsorption system. The results revealed that ACEW-30 prepared from waste sources demonstrated comparable performance with other adsorbents tested, suggesting its potential for waste valorisation. Afterwards, the data were fitted to various adsorption isotherm models, namely, Langmuir, Freundlich, Sips, Toth, Dubinin–Radushkevich and Temkin, to characterise the adsorbate-adsorbent interaction between CO₂ molecules and ACEW-30 at different adsorption temperatures (25–50°C) and CO₂ partial pressures (0.15–0.30 vol.%). The isotherm results were used to evaluate thermodynamic properties using Van't Hoff and Clausius–Clapeyron equations. The effect of regeneration conditions (desorption temperatures and nitrogen purging flow rate) have also been investigated prior to cyclic adsorption–desorption experiments. Overall findings indicate that CO₂ adsorption on ACEW-30 was best fitted to Freundlich isotherm, spontaneous and exothermic in nature. The isosteric heat of adsorption was within 20–24 kJ/mol, suggesting that the adsorption mechanism lies within the intermediate region between purely physical and purely chemical. Remarkably, the results obtained from regeneration studies reveal that ACEW-30 exhibited high regeneration stability at 25°C and 800 mL/min purging flow rate, with more than 87% efficiency even after 20 cyclic adsorption–desorption.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 4","pages":"472-486"},"PeriodicalIF":2.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2354","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental Study of CO2 Hydrate Formation in the Presence of Modified Nanoclay in a Rocking Vessel","authors":"Mahsa Jafari Khamirani,&nbsp;Mohsen Mohammadi,&nbsp;Mohammad Shahbazian,&nbsp;Mohammad Dinari,&nbsp;Mohammad Reza Ehsani","doi":"10.1002/ghg.2348","DOIUrl":"https://doi.org/10.1002/ghg.2348","url":null,"abstract":"<div>\u0000 \u0000 <p>In this study, the effect of nanoclay on the gas storage in the hydrate phase was investigated. Nanoparticles were modified with polyethyleneimine (PEI) to improve their surface properties, and these modified nanoparticles were subsequently characterized. Subsequently, gas hydrate formation experiments were conducted for CO₂ storage in the hydrate phase. A rocking reactor was employed to form the gas hydrate. In addition, the effect of different nanoparticle concentrations (200, 400, and 500 ppm), the PEI concentration loaded on nanoparticles (30% and 50%), the initial volume of suspension, and initial pressure were investigated. Data on CO₂ consumption, water-to-hydrate conversion, and storage capacity were collected throughout the experiments. This study is a continuation of the research by Jafari Khamirani et al. (2024). The results indicated that nanoparticles increased gas consumption and storage capacity compared to water in the rocking vessel. Additionally, compared to the study by Jafari Khamirani et al. (2024), the nanoparticles demonstrated better effectiveness, in the rocking vessel compared to the stirrer-type vessel. Among the experiments, nanoparticles modified with 50% PEI outperformed compared to those with 30% PEI and unmodified nanoparticles, which indicates the positive impact of amino groups on hydrate formation. The surface-grafted nanoclay with a mass fraction of 500 ppm with 50% PEI had the highest CO₂ gas consumption, with an improvement of approximately 33.26% compared to pure water; this concentration also has a maximum amount of storage capacity of 70.78 V/V. © 2025 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 4","pages":"449-457"},"PeriodicalIF":2.8,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144833367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diatomite as a Partial and Sustainable Cement Replacement: Chemical, Mechanical, and Thermal Properties","authors":"Younes El Miski,&nbsp;Oussama Zine,&nbsp;Mohamed Ameur,&nbsp;Yassine Kharbouch,&nbsp;Driss Taoukil","doi":"10.1002/ghg.2352","DOIUrl":"https://doi.org/10.1002/ghg.2352","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the use of Moroccan diatomite in its raw and calcined forms in mortar as a partial replacement for cement to reduce the primary energy consumption in cement production. For this purpose, a thermophysical and mechanical study was carried out. In addition, the energy consumption and global warming potential (GWP) associated with the production of these materials were assessed using a cradle-to-gate life cycle assessment analysis. Several samples were prepared by replacing up to 40% of the cement with diatomite, while maintaining the same sand and water content in the mortar. The study found that diatomite reduced thermal conductivity and diffusivity owing to its high insulating potential. However, calcining diatomite up to 850°C altered the quality of the produced silica, resulting in lower values compared with raw diatomite mortars. The mortars’ compressive and flexural strengths slightly decreased when diatomite was used as a substitute, with reductions of up to 10%. Calcined diatomite mortars demonstrated a higher water absorption capacity than raw diatomite mortars. The study concluded that mortars in which 40% of the cement has been partially replaced by either raw diatomite or calcined diatomite offer the most satisfactory thermal performance, while retaining sufficient mechanical strength to enable them to be classified as construction mortars. Calcined diatomite mortars offer favorable performance compared to raw diatomite, suggesting the potential of calcined diatomite to reduce the environmental impact and improve mortar quality, opening prospects for environment-friendly mortars and cost optimization.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 3","pages":"394-408"},"PeriodicalIF":2.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermodynamic Modeling of Aqueous Amine-Electrolyte Solvents for CO2 Absorption","authors":"Jun Hui Law,&nbsp;Aisyah Ilyani Ismail,&nbsp;Graham Leverick,&nbsp;Elizabeth M. Bernhardt,&nbsp;Azlan Mohd. Kassim,&nbsp;Farihahusnah Hussin,&nbsp;Betar M. Gallant,&nbsp;Mohamed Kheireddine Aroua","doi":"10.1002/ghg.2351","DOIUrl":"https://doi.org/10.1002/ghg.2351","url":null,"abstract":"<p>The coupling process of carbon capture and utilization technology (CCU) that is gaining a lot of interest is called integrated CO₂ capture–conversion (ICCC) where it is a part of the technological advancement aligning to one of the Sustainable Development Goals (SDGs) domains, which is SDG 13 (climate action). It electrochemically transforms CO₂ extracted from the post-combustion emissions into valuable products using amine-electrolyte solution, eliminating the need for an energy-intensive sorbent regeneration step. Extensive work on the chemical equilibria of the solvent combination is crucial to reveal the effect of salt addition towards the absorption mechanism. In this work, the chemical equilibria of the amine-electrolyte solvent systems are modeled using the Deshmukh–Mather model. The binary interaction parameters used in the modeling are fitted using experimental data, and the fitted model showed the average absolute deviation less than 10% for all the amine-electrolyte solvent systems, which showed better results than the extended Debye–Hückel model. The modeled speciation was compared using the protonated amine, bicarbonate, and carbamate concentration as a function of the solution pH. The concentration of carbamate showed a peak at a pH approximately equal to the protonation constant of the amines. The carbamate produced in the potassium chloride-containing solutions was approximately following the stoichiometry of the reaction. Moreover, potassium bicarbonate can be treated as the reactive electrolyte for higher production of carbamate during the absorption process. Overall, this article emphasizes the speciation modeling that can be used as the foundation for other possible blends of absorbents. © 2025 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 3","pages":"381-393"},"PeriodicalIF":2.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2351","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Continuous CO2 Injection for Simultaneous Geological Storage and Enhanced Oil Recovery: Experimental Investigation on the Effects of Permeability Heterogeneity","authors":"Shayan Faghihi,&nbsp;Jamshid Moghadasi,&nbsp;Mohammad Jamialahmadi","doi":"10.1002/ghg.2350","DOIUrl":"https://doi.org/10.1002/ghg.2350","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigated the effects of absolute permeability on the performance of continuous CO₂ injection for a CO₂-enhanced oil recovery and storage process (CO₂-EOR and Storage) in a water-invaded zone. First, the CO₂ solubility in dead-oil and brine samples and the oil swelling factor were measured using a visual high-pressure–high-temperature cell. Following this, several continuous immiscible CO₂ injection core flooding tests at a constant rate of 0.5 cm³/min and in situ reservoir conditions were conducted. The core samples were taken from a carbonate depleted oil reservoir located in southern Iran. The results revealed that more than 30% of the injected CO₂ was trapped primarily by residual-phase and solubility-trapping mechanisms. In addition, it was found that the core samples with lower absolute permeability provided higher storage efficiency. In contrast, the ones with the highest absolute permeability showed the least potential for CO₂ storage. From the EOR point of view, on average, 18% of the residual oil was produced mechanistically through swelling as well as physical displacement. Although the results showed a declining trend in the amount of oil produced with increased absolute permeability, no clear relationship could be established.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 4","pages":"458-471"},"PeriodicalIF":2.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CO2 Storage Site Selection: A Comprehensive Review of Current Approaches","authors":"Shahryar Rashidi,&nbsp;Seyed Shariatipour,&nbsp;Mohammadreza Bagheri","doi":"10.1002/ghg.2349","DOIUrl":"https://doi.org/10.1002/ghg.2349","url":null,"abstract":"<p>Global warming, driven by increasing anthropogenic greenhouse gas emissions, has emerged as a critical environmental concern. Carbon capture and storage (CCS) technology offers a promising solution for reducing CO₂ emissions, but its effectiveness depends on identifying suitable candidates that can ensure safe, long-term storage of CO₂. This study proposes a systematic four-stage workflow for selecting optimal CO₂ storage sites, developed through a comprehensive review of existing approaches. The workflow begins with preliminary, large-scale assessments of broad geographic areas, such as sedimentary basins, using geological, technical, environmental, and economic criteria. Although these assessments provide valuable regional insights, they often lack the resolution required for precise evaluations. Site-specific frameworks bridge this gap by examining individual candidates, such as saline aquifers and depleted reservoirs. However, basic frameworks frequently oversimplify suitability evaluation by neglecting the interdependencies and uncertainties inherent in real-world conditions. To address these challenges, advanced frameworks are incorporated to apply multi-criteria decision-making (MCDM) methods and optimization techniques, such as pinch analysis and process graphs. MCDM-based frameworks weigh conflicting criteria, whereas optimization-based frameworks ensure the technical and economic feasibility of CO₂ allocation in the source-to-sink matching problem. Applying this workflow to the UK context reveals the need for advanced assessments of storage candidates such as the Bunter Sandstone Formation, demonstrating that relying solely on basic frameworks is insufficient. The findings underscore the importance of integrated approaches that combine both basic and advanced suitability evaluations to enhance the robustness of site-selection practices. © 2025 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 4","pages":"487-510"},"PeriodicalIF":2.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2349","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning–Based Estimation of Hydrogen Solubility in Brine for Underground Storage in Saline Aquifers","authors":"Fahd Mohamad Alqahtani,&nbsp;Menad Nait Amar,&nbsp;Hakim Djema,&nbsp;Khaled Ourabah,&nbsp;Amer Alanazi,&nbsp;Mohammad Ghasemi","doi":"10.1002/ghg.2353","DOIUrl":"https://doi.org/10.1002/ghg.2353","url":null,"abstract":"<div>\u0000 \u0000 <p>Saline aquifers are considered among the most attractive porous media systems for underground hydrogen storage (UHS) because of their wide availability and the considerable capacity of storage. The successful implementation of UHS in saline aquifers depends on many vital factors and parameters. Among these factors, the solubility of hydrogen (H₂) in brine remains a relevant consideration, particularly due to its influence on potential bio-geochemical reactions that may occur within underground formations. Given the significant expense and time demands associated with experimental methods for determining hydrogen solubility in brine, there is a growing need for a reliable and low-cost alternative capable of delivering accurate predictions. In this research, a suite of robust machine learning (ML) schemes, including multilayer perceptron (MLP), genetic programming (GP), and the group method of data handling (GMDH), is employed to construct predictive models for hydrogen solubility in brine, specifically under challenging high-pressure and high-temperature scenarios. The obtained results demonstrated the promising performance of the newly suggested ML-based paradigms. MLP optimized with Levenberg–Marquardt (MLP-LMA) yielded the best statistical metrics, including an <i>R</i>² of 0.9991 and an average absolute relative error (AARE) of 0.9417%. The findings of this study are important because they demonstrate that ML-based approaches embodied in intelligent paradigms are accurate and efficient and therefore have potential for use in reservoir simulators to assess dissolution processes associated with UHS in porous media.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 3","pages":"409-420"},"PeriodicalIF":2.7,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influences of Diamine Molecular Structures on the Phase-Change CO2 Capture From Flue Gas","authors":"Ziyong Li,&nbsp;Qingdan Huang,&nbsp;Tingyan Wang,&nbsp;Huihong Huang,&nbsp;Haoyong Song","doi":"10.1002/ghg.2347","DOIUrl":"https://doi.org/10.1002/ghg.2347","url":null,"abstract":"<div>\u0000 \u0000 <p>The amino groups and its substituents of organic amine absorbents have an important influence on the CO₂ absorption and desorption performance. In this study, four diamines with the same primary amino group and another different amino groups were selected as absorbents, including 1,3-propanediamine (1,3-PDA), 3-methylaminopropylamine (MAPA), 3-dimethylaminopropylamine (DMAPA), and 3-diethylaminopropylamine (DEAPA). The phase-change absorption system uses a mixture of polyether and H₂O as the solvent. The CO₂ absorption performance of flue gas was studied with the analysis on absorption and desorption rate, cycle capacity, and desorption ratio. The effect of diamine molecular structures on phase-change CO₂ capture was investigated by nuclear magnetic carbon spectroscopy. The results show that DEAPA exhibits highest absorption capacity of 1.21 mol CO₂/mol amine and recycling capacity of 1.09 mol CO₂/mol amine. The absorption rate of primary and secondary diamines in the phase-change system is significantly higher than that of primary and tertiary diamines. The diamine system with tertiary amino groups has significantly faster desorption rate, higher desorption ratio, and cycle capacity than the primary and secondary diamine systems. The intramolecular tertiary amino group is more conducive to promoting the absorption of CO₂ than the intermolecular tertiary amino group, which can increase the absorption rate of CO₂ by the primary amino group and enhance the CO₂ desorption.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 3","pages":"346-356"},"PeriodicalIF":2.7,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144315271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geochemical Assessment for Carbon Sequestration in the Conasauga Group, Northwest Georgia, USA","authors":"Nora V. Lopez Rivera,&nbsp;Lauren E. Beckingham","doi":"10.1002/ghg.2344","DOIUrl":"https://doi.org/10.1002/ghg.2344","url":null,"abstract":"<div>\u0000 \u0000 <p>Sedimentary geological formations are known to be great candidates for geological carbon sequestration. Published studies suggest the southeast of the United States contains many formations suitable for carbon storage. The Cassville 1 Stratigraphic Borehole well could act as a potential carbon reservoir for nearby energy resource facilities in Georgia, United States. Although studies have shown that porous formations are adequate for geological carbon sequestration, it is important to understand possible geochemical reactions between CO₂ and the targeted geological formation before injecting any fluids. In this study, a sandstone sample from the Cassville 1 well is being considered for geological carbon sequestration in the Conasauga Group in Northwest Georgia. The collected sandstone sample, consisting of quartz, K-feldspar, micas, kaolinite, and carbonate minerals such as calcite and dolomite, has a 6% porosity. Leveraging the formation composition and porosity, a one-dimensional continuum reactive transport model was built using CrunchFlow to assess possible geochemical reactions between injected CO₂ and the geological formation. Simulation results show that the carbonate minerals, calcite and dolomite, dissolve during the injection period of 10,000 days, increasing formation porosity from 6% to as much as 30%. The rate and extent of carbonate mineral dissolution and resulting porosity increase are highly sensitive to mineral reactive surface area values. No evidence of mineral precipitation was observed, suggesting that dissolution reactions will control porosity evolution during the CO₂ injection period.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 4","pages":"423-431"},"PeriodicalIF":2.8,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144833333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Geological Screening for CO2 Storage in Deep Saline Aquifers in the Lower Mainland British Columbia (LMBC), Canada","authors":"Maziyar Nazemi,&nbsp;Shahin E. Dashtgard,&nbsp;Francyne Bochi do Amarante,&nbsp;Hassan Hassanzadeh,&nbsp;Andrew D. La Croix","doi":"10.1002/ghg.2345","DOIUrl":"https://doi.org/10.1002/ghg.2345","url":null,"abstract":"<p>Deep saline aquifers and depleted reservoirs are prime candidates for CO₂ storage, but feasibility assessments remain limited in regions with little oil and gas activity, such as the Lower Mainland of British Columbia (LMBC), Canada. This study evaluates the CO₂ storage potential of the Georgia Basin strata beneath the LMBC, focusing on three intervals (Nanaimo Group, Huntingdon Formation, and Boundary Bay Formation) in Western, Central, and Eastern LMBC. Eastern LMBC holds limited potential for CO₂ storage due to both the shallow depth of strata in that region and the high geological uncertainty resulting from limited subsurface data. The Upper Cretaceous Nanaimo Group across the entire LMBC is unsuitable for CO₂ injection because it has very poor reservoir quality (generally &lt;1 mD permeability and &lt;8% porosity). In contrast, the Paleogene Huntingdon Formation in Western and Central LMBC contains thick successions of reservoir-quality rock (average thickness: 110 m, porosity: 15%), though its low permeability (≥10 mD) may restrict injection rates. Its estimated CO₂ storage capacity is ∼400 Mt, making it a secondary target. The Neogene Boundary Bay Formation, also in Western and Central LMBC, offers the most favorable conditions, with higher permeability (13–67 mD), porosity (18%–21%), and thick reservoir intervals (up to 155 m). It has an estimated CO₂ storage capacity of ∼430 Mt. With low fault density and minimal wellbore leakage risks, the Boundary Bay Formation and then the Huntingdon Formation below Western and Central LMBC are recommended as the primary targets for CO₂ sequestration in the region.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 4","pages":"432-448"},"PeriodicalIF":2.8,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2345","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144833290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}