Greenhouse Gases: Science and Technology最新文献

{"title":"Exploring the Potential of Flame Ionisation Detector Technique to Analyse Gas Tracers for CO2-Based Enhanced Oil Recovery Applications in High-Temperature Reservoirs","authors":"Subhadip Maiti,&nbsp;Rishabh Tripathi,&nbsp;Anooja Sara Mathew,&nbsp;Sandeep D. Kulkarni","doi":"10.1002/ghg.2383","DOIUrl":"https://doi.org/10.1002/ghg.2383","url":null,"abstract":"<div>\u0000 \u0000 <p>Perfluorocarbon (PFC) gas tracers perfluoromethylcyclohexane (PMCH) and perfluoro-1,3-dimethylcyclohexane (PDCH) were evaluated for CO₂ geo-storage and enhanced oil recovery (EOR) applications under high-temperature conditions. A novel detection method using a flame ionisation detector (FID) was employed as a cost-effective and environmentally safer alternative to the conventional electron capture detector (ECD), overcoming associated regulatory and maintenance challenges. Thermal stability was assessed by aging the tracers with CO₂ at 120°C for 48 h, with gas chromatography–mass spectrometry (GC–MS) confirming no degradation. Adsorption studies revealed minimal adsorption with sandstone, and energy-dispersive x-ray spectroscopy (EDX) indicated no significant mineralogical alterations. Wettability tests confirmed a water-wet environment with a contact angle of ≈52°, whereas interfacial tension remained stable at ≈56.45 mN/m. The minimum miscibility pressure (MMP) of CO₂ was determined at ≈1500 psi using a slim tube apparatus. Core flooding experiments on sandstone cores from the Rajasthan oilfield, India, were conducted to evaluate tracer transport behaviour. Breakthrough curves obtained from gas chromatography–FID analysis were used to derive swept pore volume, sweep efficiency, Lorentz coefficient and tortuosity. The findings confirm the thermal and chemical stability of PMCH and PDCH tracers, validating their application in reservoir characterisation and CO₂ monitoring. The FID-based detection approach was proven effective and practical.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"16-32"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570114","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":"Optimization of CaO–Ni Blends for Enhanced CO2 Adsorption: Aspen Plus Simulation Study","authors":"Soomro Sarmad,&nbsp;Dennis Lu,&nbsp;Zhenkun Sun,&nbsp;Muhammad Mubashir,&nbsp;Abid Ali,&nbsp;Lunbo Duan","doi":"10.1002/ghg.2385","DOIUrl":"https://doi.org/10.1002/ghg.2385","url":null,"abstract":"<div>\u0000 \u0000 <p>Carbon capture and storage (CCS) technologies are essential for mitigating global CO₂ emissions, yet challenges such as high energy consumption and material degradation hinder their widespread adoption. This study investigates the integration of nickel (Ni) into calcium oxide (CaO) sorbents to enhance CO₂ capture efficiency by leveraging Ni's catalytic properties to optimize carbonation kinetics. Aspen Plus simulations were employed to evaluate the effects of varying Ni concentrations (5–25 wt%) on reaction rates, activation energy, and carbonation efficiency. The results revealed that adding Ni considerably reduced the activation energy from 178 kJ/mol (pure CaO) to 70–90 kJ/mol. The maximum catalytic efficiency was achieved at 20 wt% Ni. At this concentration, the rate of the carbonation reaction increased exponentially, leading to considerable improvements in CO₂ collection and CaCO₃ formation rates. Sensitivity analysis identified key operational parameters, such as temperature, CO₂ partial pressure, and flow rates, for improving process optimization in industrial settings. In comparison to typical CaO-based sorbents, Ni–CaO blends demonstrated higher catalytic efficiency and lower energy needs, addressing key challenges in CCS systems. This work distinguishes itself from previous CaO stability studies by integrating process optimization and kinetic modeling, resulting in practical insights for the development of energy-efficient CO₂ capture technologies. Future research ought to explore the long-term stability of Ni–CaO sorbents and incorporate renewable energy sources to increase the sustainability and economic feasibility of CCS systems.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"33-45"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570380","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 Capture Using Red Mud: A Review of Process Variables, Mechanisms, and Post-Carbonation Challenges","authors":"Suman,&nbsp;Alok Tripathy","doi":"10.1002/ghg.2388","DOIUrl":"10.1002/ghg.2388","url":null,"abstract":"<div>\u0000 \u0000 <p>The rise in greenhouse gas emissions, mainly anthropogenic CO₂, is causing global warming that leads to climate change and has become a matter of global concern. This review investigates the use of red mud in CO₂ capture and highlights recent advancements over the past 25 years. The bauxite ore is digested with sodium hydroxide to form sodium aluminate using Bayer's process, leaving behind a highly alkaline residue known as red mud. This residue is a well-suited feedstock material for CO₂ capture processes and its subsequent neutralization. This article discusses the fundamentals of red mud and various pathways for carbonation. Then, the chemical and mineralogical components of red mud that contribute to the adsorption of CO₂ are investigated. It then focuses on research progress and provides an up-to-date review of recent advances in CO₂ capture using red mud. This article reviews the mechanism and critically evaluates the process variables that influence the adsorption of CO₂ in red mud. It also provides insight into recent activation methods to improve its capacity. It then discusses the associated post-carbonation challenges with red mud, concluding that further research is needed in reshaping red mud's perception from industrial waste to a valuable feedstock material for key carbon-emitting industries. This review serves as a comprehensive reference in the emerging area of CO₂ capture using red mud and addresses the distinct gap of process variables, mechanisms, and post-carbonation challenges. The ultimate aim is to resolve the CO₂ emitted into the atmosphere and its simultaneous neutralization.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"158-174"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147563261","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":"Downdraft Devices for Negative Emissions—Quantification Study and Environmental Implication","authors":"Xiaokun Yao,&nbsp;Tao Tao,&nbsp;Tingzhen Ming,&nbsp;Renaud de Richter,&nbsp;Wei Li","doi":"10.1002/ghg.2392","DOIUrl":"10.1002/ghg.2392","url":null,"abstract":"<p>Methane (CH₄) is a potent greenhouse gas with a global warming potential far exceeding that of CO₂ over short time horizons. Its removal from the atmosphere remains challenging due to its low ambient concentration and chemical stability. This study explores downdraft energy towers (DETs) as an innovative CH₄ mitigation technology that enhances the dominant hydroxyl radical (·OH) sink via water vapor release. A coupled modeling framework integrating computational fluid dynamics (CFD) and a simplified atmospheric chemistry model was developed to quantify the influence of operational parameters, environmental conditions, and tower scale. The CFD simulations evaluated internal flow dynamics and water vapor output, whereas the atmospheric model estimated ·OH production and CH₄ oxidation potential. Results indicate that higher water injection rates, elevated ambient temperatures, and lower relative humidity markedly increase downdraft strength, vapor emissions, and ·OH formation. Scaling analysis showed that an 800 <span></span><math>\u0000 <semantics>\u0000 <mi>m</mi>\u0000 <annotation>${mathrm{m}}$</annotation>\u0000 </semantics></math> DET could remove up to 141.17 t CH₄ per year, with the highest efficiency in hot, dry climates. These findings highlight DETs as a promising complementary option for greenhouse gas mitigation and provide guidance for optimizing their design and deployment in climate engineering strategies.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"75-89"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564157","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":"Downdraft Devices for Negative Emissions—Quantification Study and Environmental Implication","authors":"Xiaokun Yao,&nbsp;Tao Tao,&nbsp;Tingzhen Ming,&nbsp;Renaud de Richter,&nbsp;Wei Li","doi":"10.1002/ghg.2392","DOIUrl":"https://doi.org/10.1002/ghg.2392","url":null,"abstract":"<p>Methane (CH₄) is a potent greenhouse gas with a global warming potential far exceeding that of CO₂ over short time horizons. Its removal from the atmosphere remains challenging due to its low ambient concentration and chemical stability. This study explores downdraft energy towers (DETs) as an innovative CH₄ mitigation technology that enhances the dominant hydroxyl radical (·OH) sink via water vapor release. A coupled modeling framework integrating computational fluid dynamics (CFD) and a simplified atmospheric chemistry model was developed to quantify the influence of operational parameters, environmental conditions, and tower scale. The CFD simulations evaluated internal flow dynamics and water vapor output, whereas the atmospheric model estimated ·OH production and CH₄ oxidation potential. Results indicate that higher water injection rates, elevated ambient temperatures, and lower relative humidity markedly increase downdraft strength, vapor emissions, and ·OH formation. Scaling analysis showed that an 800 <span></span><math>\u0000 <semantics>\u0000 <mi>m</mi>\u0000 <annotation>${mathrm{m}}$</annotation>\u0000 </semantics></math> DET could remove up to 141.17 t CH₄ per year, with the highest efficiency in hot, dry climates. These findings highlight DETs as a promising complementary option for greenhouse gas mitigation and provide guidance for optimizing their design and deployment in climate engineering strategies.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"75-89"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://scijournals.onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564159","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":"A Study on the Degradation Performance of MDEA/PZ and MDEA/AEP With the Influence of Sulfur Compounds","authors":"Xiaoming Xu,&nbsp;Ying Xie,&nbsp;Yang Xia,&nbsp;Mengxiang Fang,&nbsp;Jie Cheng,&nbsp;Chenxiang Yao,&nbsp;Zihao Liu,&nbsp;Hao Xiang,&nbsp;Nengchuang Zhu,&nbsp;Gengsheng Liu","doi":"10.1002/ghg.2382","DOIUrl":"https://doi.org/10.1002/ghg.2382","url":null,"abstract":"<div>\u0000 \u0000 <p>With the increasing global energy demand and its environmental impacts, carbon capture, utilization, and storage technology (CCUS) has become a crucial means to reduce CO₂ emissions and address climate change. This study investigated the thermal and oxidative degradation characteristics of two amine blend absorbents, methyldiethanolamine (MDEA)/piperazine (PZ) and MDEA/2-(piperazin-1-yl) ethanamine (AEP) and explored the effect of sulfur compounds on their stability. The experimental results indicated that MDEA/PZ exhibited a lower thermal degradation rate, whereas MDEA/AEP, due to the thermal instability of the AEP component, showed poorer degradation performance. In terms of oxidative degradation, monoethanolamine (MEA) demonstrated a higher oxidative degradation rate, whereas MDEA/PZ and MDEA/AEP exhibited lower oxidative degradation rates. The addition of inhibitors reduced the oxidative degradation rates of MDEA/PZ and MDEA/AEP, with antimony potassium tartrate (APT) proving to be the most effective inhibitor. In sulfur-containing environments, sulfur compounds (hydrogen sulfide and carbonyl sulfide) significantly enhanced both the thermal and oxidative degradation rate of MDEA/PZ and MDEA/AEP, particularly for MDEA/AEP, where the thermal degradation rate increased by 25.2%. This study revealed the impact of sulfur compounds on the thermal and oxidative degradation of absorbents. The findings provide important experimental data and theoretical support for optimizing the stability of carbon capture absorbents.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"4-15"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570148","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":"Co–Cu Bimetallic–Modified ATP Catalysts for Efficient and Low-Energy CO2 Capture","authors":"Zhengxiong Jiang,&nbsp;Zhitao Han","doi":"10.1002/ghg.2391","DOIUrl":"https://doi.org/10.1002/ghg.2391","url":null,"abstract":"<div>\u0000 \u0000 <p>The high energy consumption during regeneration of CO₂-rich amine solutions remains a major challenge for amine-based carbon capture. However, the addition of solid–acid catalyst accelerates the slow CO₂ desorption process while reducing the energy consumption for regeneration of the amine-rich solution. Herein, we developed Co and Cu bimetallic–modified attapulgite (ATP) solid–acid catalysts via impregnation to enable energy-efficient CO₂ desorption. The optimized Co₂–Cu₁/ATP catalyst exhibited exceptional performance in regenerating CO₂-rich monoethanolamine (MEA) solution (5 M) at 90°C, achieving a 171% increase in CO₂ desorption rate, a 287% enhancement in CO₂ desorption amount, and a 75.6% reduction in regeneration heat duty compared to non-catalytic processes. Comprehensive characterization (x-ray diffraction [XRD], Fourier transform infrared [FT-IR], NH₃-TPD, N₂ adsorption–desorption, scanning electron microscopy [SEM]/EDS, x-ray photoelectron spectroscopy [XPS]) revealed that the synergy between Co₃O₄ and CuO nanoparticles on ATP generated abundant strong acid sites and optimized mesoporous structure, facilitating proton transfer and carbamate decomposition. FT-IR analysis confirmed the catalytic accelerating effect of catalysts on the conversion of intermediates. The catalyst maintained 83% activity after eight regeneration cycles due to robust Co–O–Si/Cu–O–Si metal-support interactions. This work provides a cost-effective strategy for low-energy carbon capture, advancing industrial deployment of carbon capture, utilization, and storage (CCUS) technology.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"62-74"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147564158","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 Storage of CO2 and H2: A Bibliometric Synthesis of General and Laboratory-Scale Research Evolution","authors":"Sara Roces,&nbsp;Jhon Caicedo-Potosí,&nbsp;Timea Kovács,&nbsp;Berta Ordóñez-Casado,&nbsp;Sergio Llana-Fúnez,&nbsp;Edgar Berrezueta","doi":"10.1002/ghg.2380","DOIUrl":"https://doi.org/10.1002/ghg.2380","url":null,"abstract":"<p>Underground gas storage is a cornerstone technology for addressing climate change and advancing the clean energy transition. By managing greenhouse gas emissions and enhancing energy system resilience, it supports global sustainability goals. This study presents a comparative bibliometric analysis and review of geological CO₂ and H₂ storage research based on publications indexed in Scopus till December 31, 2024. For CO₂ storage, 21,996 publications were identified, including 8447 focused on laboratory-scale experiments (38.4%), with sandstones being the most studied lithology. Key topics include monitoring (1.25%), enhanced oil recovery (1.24%) and injection (0.99%), whereas key parameters that govern CO₂–rock–fluid interactions are porosity, permeability, adsorption–desorption and density. H₂ storage research, comprising 4229 publications, 1541 of which are related to laboratory-scale experiments (36.43%), has exhibited exponential growth since 2020. Major areas of focus include CO₂-related studies (1.8%), wettability (1.29%) and cushion gas (0.97%); and key parameters are porosity and permeability, together with geomechanical and microbial parameters. Across all laboratory-scale studies, pH measurements, scanning electron microscopy (SEM), computed tomography (CT), x-ray diffraction (XRD) and nuclear magnetic resonance (NMR) are the most frequently applied techniques to characterize fluid–rock interactions. A total of 546 papers address combined laboratory studies on CO₂ and H₂ storage. The co-occurrence analysis of keywords within these studies highlights emerging thematic interconnections and research synergies between both storage technologies. Results of both research domains underscore the critical role of experimental methodologies in advancing understanding of reservoir behaviour and storage capacity. These findings highlight the need for interdisciplinary innovation and international collaboration to overcome technical challenges and accelerate the deployment of geological gas storage applications.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"111-124"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2380","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147567447","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":"Impact of Wettability on CO2 Mineral Trapping in Carbonate Saline Aquifers: A Reactive Transport Simulation Study","authors":"Reza Khoramian,&nbsp;Ibraheem Salaudeen,&nbsp;Peyman Pourafshary,&nbsp;Masoud Riazi,&nbsp;Riyaz Kharrat","doi":"10.1002/ghg.2387","DOIUrl":"10.1002/ghg.2387","url":null,"abstract":"<div>\u0000 \u0000 <p>Long-term containment of CO₂ in geological formations depends on both physical and chemical trapping mechanisms. Although capillary and solubility trapping have been widely studied, the role of reservoir wettability in governing geochemical interactions remains poorly understood, particularly in reactive carbonate systems. This study investigates how contrasting wetting states influence multiphase flow and mineralization in carbonate saline aquifers. Reactive transport simulations were conducted using a compositional simulator under water- and CO₂-wet conditions over a 60-year period. The model incorporates hysteresis in relative permeability, capillary pressure variation, and calcite reaction kinetics to evaluate the evolution of capillary, solubility, and mineral trapping mechanisms. Results show that wettability strongly affects both phase distribution and geochemical reactivity. Under CO₂-wet conditions, mineral trapping more than doubled compared to the water-wet case (6.5% vs. 2.8%) due to enhanced gas–rock contact and sustained local acidification. Solubility trapping also increased markedly (38.3% vs. 20.9%), facilitated by continuous CO₂ pathways that improved convective mass transfer. However, capillary trapping was significantly lower, resulting in reduced total retention (63.5%) compared to the water-wet scenario (84.9%), where capillary forces immobilized more CO₂ but restricted mineralization. This analysis demonstrates that wettability directly influences geochemical reactions by controlling CO₂ access to mineral surfaces and shaping local pH conditions. The findings suggest that selectively adjusting wettability, depending on reservoir lithology and storage goals, may enhance long-term CO₂ immobilization through mineral trapping without compromising containment.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"46-61"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570309","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":"A Study on the Degradation Performance of MDEA/PZ and MDEA/AEP With the Influence of Sulfur Compounds","authors":"Xiaoming Xu,&nbsp;Ying Xie,&nbsp;Yang Xia,&nbsp;Mengxiang Fang,&nbsp;Jie Cheng,&nbsp;Chenxiang Yao,&nbsp;Zihao Liu,&nbsp;Hao Xiang,&nbsp;Nengchuang Zhu,&nbsp;Gengsheng Liu","doi":"10.1002/ghg.2382","DOIUrl":"10.1002/ghg.2382","url":null,"abstract":"<div>\u0000 \u0000 <p>With the increasing global energy demand and its environmental impacts, carbon capture, utilization, and storage technology (CCUS) has become a crucial means to reduce CO₂ emissions and address climate change. This study investigated the thermal and oxidative degradation characteristics of two amine blend absorbents, methyldiethanolamine (MDEA)/piperazine (PZ) and MDEA/2-(piperazin-1-yl) ethanamine (AEP) and explored the effect of sulfur compounds on their stability. The experimental results indicated that MDEA/PZ exhibited a lower thermal degradation rate, whereas MDEA/AEP, due to the thermal instability of the AEP component, showed poorer degradation performance. In terms of oxidative degradation, monoethanolamine (MEA) demonstrated a higher oxidative degradation rate, whereas MDEA/PZ and MDEA/AEP exhibited lower oxidative degradation rates. The addition of inhibitors reduced the oxidative degradation rates of MDEA/PZ and MDEA/AEP, with antimony potassium tartrate (APT) proving to be the most effective inhibitor. In sulfur-containing environments, sulfur compounds (hydrogen sulfide and carbonyl sulfide) significantly enhanced both the thermal and oxidative degradation rate of MDEA/PZ and MDEA/AEP, particularly for MDEA/AEP, where the thermal degradation rate increased by 25.2%. This study revealed the impact of sulfur compounds on the thermal and oxidative degradation of absorbents. The findings provide important experimental data and theoretical support for optimizing the stability of carbon capture absorbents.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"16 1","pages":"4-15"},"PeriodicalIF":2.8,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147570147","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}