Greenhouse Gases: Science and Technology最新文献

{"title":"Regional Resource Evaluation and Distribution for Onshore Carbon Dioxide Storage and Utilization in Uzbekistan","authors":"Azizbek Kamolov,&nbsp;Zafar Turakulov,&nbsp;Adham Norkobilov,&nbsp;Miroslav Variny,&nbsp;Marcos Fallanza","doi":"10.1002/ghg.2325","DOIUrl":"https://doi.org/10.1002/ghg.2325","url":null,"abstract":"<div>\u0000 \u0000 <p>Addressing the escalating threat of climate change requires a global response, with significant actions from every nation. Uzbekistan, a member of the Paris Agreement, is actively pursuing sustainable development by reducing greenhouse gas emissions and promoting renewable energy. However, the country's Green Economy strategies currently lack Carbon Capture, Storage, and Utilization (CCUS) technology. A feasibility assessment is crucial to evaluating CCSU's potential for achieving net-zero emissions, benefiting both the public and scientific communities by informing policy decisions, and providing valuable data. The primary aim of this study is to evaluate Uzbekistan's potential for carbon dioxide (CO₂) storage and utilization (CSU) in the near and mid-term. To achieve this, this work proposes a methodology for efficient CO₂ source-sink matching to facilitate the deployment of CCUS technologies in Uzbekistan. Resource evaluation and spatial analysis methods are used to estimate the total CSU capacity of the region and the geographical distribution of CO₂ sources in two large-scale emitting sectors, specifically from the power and cement plants. According to the results, Uzbekistan has an annual CSU capacity of 1171 million tons CO₂, which is several times higher than the annual CO₂ emission rate. Additionally, CSU resources are primarily located in the eastern, western, and southern regions of the country, whereas CO₂ sink locations near the capital city and its surrounding areas are limited compared to their abundance of CO₂ sources. Overall, although the country has ample CO₂ storage capacity for CCUS deployment, the prospects for its chemical utilization remain limited in scale. © 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 2","pages":"126-141"},"PeriodicalIF":2.7,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822065","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":"Evaluation and Performance of Menthol–Polyethylene Glycol LTTM in Carbon Dioxide Capture","authors":"Fatma R. Al-Fazari,&nbsp;Farouq S. Mjalli,&nbsp;Mehdi Shakourian-Fard,&nbsp;Ganesh Kamath,&nbsp;Jamil Naser,&nbsp;Ghulam Murshid,&nbsp;Suhaib Al Ma'awali","doi":"10.1002/ghg.2330","DOIUrl":"https://doi.org/10.1002/ghg.2330","url":null,"abstract":"<div>\u0000 \u0000 <p>Carbon dioxide capture technology, while established, faces operational and economic challenges with current absorbents. Ionic liquids (ILs), though promising for their selectivity and low volatility, often have drawbacks like high toxicity and viscosity. This study explores nonionic low transition temperature mixtures (LTTMs) of menthol (MET) and polyethylene glycol 200 (PEG200) at various ratios for CO₂ uptake. The 1:2 molar ratio showed maximum CO₂ loading of 0.599 mol CO₂/mol solvent at 303.15 K and 1000 kPa, with water addition boosting CO₂ uptake by 25%. This rise in uptake with water could be due to altered hydrogen bonding within the mixture constituents. Molecular dynamics simulations support these findings, indicating experimental results, showing that water disrupts hydrogen bonds, exposing hydroxyl and ether sites for CO₂ interaction. This LTTM solvent system presents a promising, low-toxicity alternative for efficient CO₂ capture. © 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 2","pages":"111-125"},"PeriodicalIF":2.7,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822174","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":"Impact of Diverse Parameters on CO2 Adsorption in CO2 Sequestration: Utilizing a Novel Triaxial Testing Apparatus","authors":"Emad Ansari Ardehjani,&nbsp;Mohammad Ataei,&nbsp;Farhang Sereshki,&nbsp;Ali Mirzaghorbanali,&nbsp;Naj Aziz","doi":"10.1002/ghg.2322","DOIUrl":"https://doi.org/10.1002/ghg.2322","url":null,"abstract":"<div>\u0000 \u0000 <p>In order to minimize greenhouse gas emissions, it is essential from an environmental point of view to employ CO₂ sequestration technology to store CO₂ in underground coal layers. To study this strategy, a triaxial testing apparatus is required. This study introduces a novel triaxial testing apparatus developed to explore enhanced coal bed methane (ECBM) and carbon dioxide (CO₂) sequestration techniques. Several laboratory tests were conducted to validate the apparatus and study the behavior of coal exposed to CO₂ using this machine. In fact, the implementation of this machine marks the initial step in an empirical feasibility analysis of CO₂ sequestration in Iranian coal seams. This analysis involves examining the impact of ash content, ambient temperature, and saturation direction on CO₂ adsorption and emission in various coal samples. Two different thermal coal samples from Chamestan and Tash mines were utilized. Some results, such as the trend of the coal sample's strain, show good correlation with previous work. Additionally, some results presented in this work are novel. On the basis of the results, the developed apparatus demonstrated satisfactory performance, and its innovative design fully meets the desired outcome. Higher ash content increases coal strength and reduces deformation. Lower ash content leads to more gas adsorption and deformation post-saturation. Gas adsorption is higher at 25°C than at 4°C. Moreover, coal samples at 25°C had 12.5 times more axial strain than those at 4°C. Lateral saturation causes 13.72% larger axial strain changes than top and end saturation due to increased gas-sample contact and penetration into the coal matrix.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 1","pages":"53-67"},"PeriodicalIF":2.7,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381066","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":"Research Progress on CO2 Geological Storage Reservoir and Caprock Mechanics: Methods and Status","authors":"Shuaiyi Lu,&nbsp;Pan Jiang,&nbsp;Lianghan Cong,&nbsp;Xiaoshu Lü","doi":"10.1002/ghg.2328","DOIUrl":"https://doi.org/10.1002/ghg.2328","url":null,"abstract":"<div>\u0000 \u0000 <p>Greenhouse gas (GHG) emissions have caused serious global climate change, and countries worldwide are taking steps to mitigate the greenhouse effect caused by carbon emissions. CO₂ geological storage (CGS) is emerging as a large-scale technology for reducing GHG emissions and is gradually becoming one of the most important means of mitigating the greenhouse effect. There are several problems in the implementation of this technology, among which the geomechanical problems caused by injection sequestration cannot be ignored. This article reviews the impacts and hazards of geomechanical problems caused by injection and sequestration in CGS, which can lead to risks, including changes in reservoir and caprock mechanical properties, reservoir stability, caprock closure, fault activation, and induced seismicity during CO₂ injection and sequestration. This article reviews the above studies and summarizes the research methods of CGS geomechanical problems and generation mechanisms, which can help to comprehensively understand the risks faced in the CGS process and provide references and guidance for the operation, monitoring, and research of CGS in the future.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 2","pages":"264-276"},"PeriodicalIF":2.7,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822198","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":"Nickel Aluminum Spinel Derived Ni-F-Al Active Site for the Catalytic Dehydrofluorination of Potent Greenhouse Gas 1,1,1,2-Tetrafluoroethane","authors":"Fangcao Liu,&nbsp;Bing Liu,&nbsp;Yiwei Sun,&nbsp;Jinru Liu,&nbsp;Yubao Bi,&nbsp;Jiaming Zhao,&nbsp;Xiaoli Wei,&nbsp;Wenfeng Han","doi":"10.1002/ghg.2324","DOIUrl":"https://doi.org/10.1002/ghg.2324","url":null,"abstract":"<div>\u0000 \u0000 <p>HFC-134a (1,1,1,2-tetrafluoroethane) is one of the most common refrigerants with global warming potential (100 years) of 1300. It is regulated to be phased out gradually according to the Kigali Amendment to the Montreal Protocol. Treatment of this stable chemical poses significant challenge. Highly efficient nickel aluminum spinel catalysts were fabricated by sol–gel method for the catalytic dehydrofluorination of HFC-134a. The effect of Ni/Al ratio in the NiAl₂O₄ spinel precursors on the performance of NiAl catalysts was studied by x-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), transmission electron microscopy (TEM), NH₃-TPD, and XPS. Nickel–aluminum ratio in the nickel–aluminum spinel precursor plays a major role on the formation of strong acid and active species Ni-F-Al. With Ni/Al ratio of 4, the (3 1 1) crystal face of NiAl₂O₄ interfaced with the (1 1 1) crystal face of NiO and the (4 0 0) crystal face of NiAl₂O₄. This interaction facilitates the formation of Ni-F-Al active species following the dehydrofluorination reaction. Furthermore, the Ni-F-Al species altered the acid structure of NiAl catalysts. It was found that NiAl catalyst with a Ni/Al ratio of 4 has the best catalytic performance compared with other catalysts (with conversion of 35%), and no deactivation trend was observed after 50 h of time on stream. (Reaction conditions: N₂/CF₃CH₂F = 10, T = 450°C, GHSV = 660 h⁻¹).</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 1","pages":"68-78"},"PeriodicalIF":2.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380938","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":"Research and Prospect of CCUS-EOR Technology and Carbon Emission Reduction Accounting Evaluation","authors":"Yanjun Lu,&nbsp;Qianbo Fan,&nbsp;Manping Yang,&nbsp;Jianguo Ma,&nbsp;Lan Meng,&nbsp;Zhaoran Wu","doi":"10.1002/ghg.2323","DOIUrl":"https://doi.org/10.1002/ghg.2323","url":null,"abstract":"<div>\u0000 \u0000 <p>As a potential carbon emission reduction measure, carbon capture, utilization and storage technology is of great significance to achieve the goals of “carbon peak” and “carbon neutrality.” The implementation of carbon capture, utilization, and storage-enhanced oil recovery (CCUS-EOR) in the oil and gas industry serves the dual purpose of utilizing greenhouse gases as resources and enhancing oil recovery. This approach is a key strategy for achieving carbon emission reductions. In this study, the key problems of source-sink matching, injection mode, oil displacement storage, and leakage were analyzed in conjunction with CCUS-EOR technology used in both domestic and foreign oil fields. Additionally, the carbon emission reduction accounting methods of different oil fields were compared. Carbon source, carbon dioxide concentration, capture, and transportation mode are important influencing factors of carbon source selection. The project should follow the principle of proximity and select high-concentration gas source as the development object in the early stage; the main methods of carbon dioxide injection are continuous carbon dioxide injection, alternating water and gas injection, and CO₂ huff and puff among which injection speed and injection pressure are the key parameters; the underground occurrence state and storage capacity of carbon dioxide gas are dynamic changes in the process of oil displacement and storage; the three parts of surface leakage, injection wellbore leakage, and production well production are the key points of CCUS-EOR project leakage. The corresponding monitoring methods are analyzed for different leakage modes; the CCUS-EOR carbon emission reduction accounting method is comprehensively analyzed, and the application of carbon emission reduction accounting methods in major oilfields is compared. The accounting method of “life cycle assessment (LCA) + emission factor method + actual measurement method” is proposed. The research holds significant importance for enhancing the entire CCUS-EOR technology chain and refining the CCUS-EOR emission reduction accounting methodology. It also facilitates the integration of CCUS-EOR projects into the carbon trading market, thereby enabling the efficient development of carbon assets in carbon dioxide flooding projects within oil and gas fields.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 1","pages":"79-97"},"PeriodicalIF":2.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380937","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":"Direct Measurement of Greenhouse Gas Emission Rates From Manure Management in Different Livestock Production Systems in Cameroon","authors":"Ngwa Martin Ngwabie,&nbsp;Juliette N. Kwe,&nbsp;Sandrine Y. Mitin,&nbsp;Nancy F. Ngong","doi":"10.1002/ghg.2326","DOIUrl":"https://doi.org/10.1002/ghg.2326","url":null,"abstract":"<div>\u0000 \u0000 <p>Direct measurements of greenhouse gas emissions from the increasingly intensified African livestock production are important to assess locally available mitigation strategies. As such, measurements were conducted from March to June using static flux chambers to quantify the emission rates of CH₄, N₂O, and CO₂ from manure in poultry and pig production systems in Cameroon. Emissions were measured from two layer barns, two pig facilities, six broiler farms, and one farm with Brahman birds. Mean emission factors inside two layer barns were 0.06–0.21 and 602–958 mg animal⁻¹ h⁻¹ for CH₄ and CO_2, respectively, and 21–112 µg animal⁻¹ h⁻¹ for N₂O. Mean emission factors inside four broiler barns with wood shavings as bedding material were 0.31–1.22 and 355–1884 mg animal⁻¹ h⁻¹ for CH₄ and CO₂, respectively, and 2.33–1052 µg animal⁻¹ h⁻¹ for N₂O. Broiler N₂O emissions were 971.38 ± 250.23 and 26.14 ± 30.27 µg animal⁻¹ h⁻¹ from manure underneath a meshed floor barn and a shelter with bare soil, respectively. Emissions from a storage tank with wastewater from a piggery were 8.30 ± 7.36 and 40.41 ± 5.54 mg m⁻² min⁻¹ for CH₄ and CO₂, respectively, and 2.80 ± 1.67 µg m⁻² min⁻¹ for N₂O. Mean emissions from two outdoor storages of a mixture of poultry and pig manure were 0.76–0.9 and 69–136 mg m⁻² min⁻¹ for CH₄ and CO₂, respectively, and 10–15 µg m⁻² min⁻¹ for N₂O. Emissions depended highly on manure production and management systems. CH₄ emissions were lower from poultry compared to pig manure. Younger layers emitted higher CH₄ compared to older layer hens. CH₄ emissions were higher from slurry compared to solid manure, whereas N₂O emissions were higher from solid compared to slurry manure storages. These findings indicate that mitigation strategies for greenhouse gas emissions should depend not only on the type of gases and manure management systems but also on the animal types and their ages.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 2","pages":"102-110"},"PeriodicalIF":2.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822199","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":"Response Surface Optimisation of Carbon Dioxide Adsorption Onto Palm Shell Activated Carbon Functionalised With Natural Amino Acids","authors":"Nur Syahirah Mohamed Hatta,&nbsp;Farihahusnah Hussin,&nbsp;Lai Ti Gew,&nbsp;Mohamed Kheireddine Aroua","doi":"10.1002/ghg.2321","DOIUrl":"https://doi.org/10.1002/ghg.2321","url":null,"abstract":"<p>Amino acids have shown promising results for carbon dioxide (CO₂) capture when functionalised on solid materials; however, the functionalisation often relies on commercial synthetic amino acids. This study investigated the optimal CO₂ adsorption performance of amino acid–functionalised material synthesised from palm shell–based activated carbon and natural amino acids, specifically egg white (EW) solution, in a continuous adsorption column. The process conditions of the column were optimised using response surface methodology. Four parameters, namely, the gas flow rate, adsorption temperature, CO₂ concentration and EW concentration in the impregnation solution, were identified as significantly affecting CO₂ adsorption performance. Good agreements were obtained between the predicted and experimental data, with the coefficients of determination ranging from 0.9639 to 0.9784. A maximum CO₂ adsorption capacity of 1.1793 mmol/g was achieved under optimal process conditions: a gas flow rate of 200 mL/min, an adsorption temperature of 25°C, a CO₂ concentration of 25 vol.%, and an EW concentration of 15 wt.%. The validation results further confirmed the reliability of the developed model equation in predicting the maximum CO₂ adsorption capacity at a fixed 15 vol.% CO₂ concentration, with low estimation error. The comparable results obtained using EW waste in this study represent a significant finding in the potential for waste valorisation, aligning with Sustainable Development Goal (SDG) 12 of the United Nations Sustainable Development Goals, as well as contributing to climate action as outlined in SDG 13.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 1","pages":"36-52"},"PeriodicalIF":2.7,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2321","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380999","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 Relative Permeability Hysteresis on CO2 Storage in Saline Aquifers","authors":"Reza Khoramian,&nbsp;Ibraheem Salaudeen,&nbsp;Peyman Pourafshary,&nbsp;Masoud Riazi,&nbsp;Riyaz Kharrat","doi":"10.1002/ghg.2319","DOIUrl":"https://doi.org/10.1002/ghg.2319","url":null,"abstract":"<div>\u0000 \u0000 <p>The urgent challenge of climate change, driven by rising carbon emissions, necessitates innovative strategies for carbon capture and storage (CCS). This study examines the impact of hysteresis in relative permeability on CO₂ entrapment efficiency within saline aquifers, known for their significant storage capabilities. An aquifer model was analyzed through numerical simulation by varying hysteresis values from 0.2 to 0.5 to evaluate their impact on CO₂ plume behavior, retention during water-alternating-gas (WAG) injection, and plume morphology. The CO₂ plume exhibits a funnel-shaped configuration at low hysteresis with a narrow, pointed base, indicating a concentrated upward migration trajectory. In contrast, a hysteresis value of 0.5 results in diminished gas movement toward the upper aquifer, transforming the plume into a more oval shape. Results from the land trapping model further support our findings, revealing an inverse relationship where increased hysteresis enhances residual CO₂ entrapment, reflected in trapping coefficient values ranging from 0.5 to 4. This underscores the model's efficacy in verifying gas trapping efficiency and safety during sequestration. Moreover, increased water flow generates stronger forces, pushing CO₂ into narrower pore spaces, where it becomes trapped. Our findings indicate that increased hysteresis enhances CO₂ retention by limiting vertical migration and significantly influences plume geometry, promoting stable and predictable distribution patterns. At higher hysteresis values, CO₂ migration is significantly restricted, resulting in near-complete immobilization of the injected gas. This research highlights hysteresis's critical role in refining injection methodologies and enhancing plume stability for long-term CO₂ storage. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>\u0000 </div>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 1","pages":"3-12"},"PeriodicalIF":2.7,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380936","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":"Techno-Economic Analysis of Glycerol Steam Reforming with Amine-Based Carbon Capture for Blue Hydrogen Production: A Rate-Based Kinetic Model Approach","authors":"Pali Rosha,&nbsp;Mohammad Sajjadi,&nbsp;Hussameldin Ibrahim","doi":"10.1002/ghg.2320","DOIUrl":"https://doi.org/10.1002/ghg.2320","url":null,"abstract":"<p>This study outlines a comprehensive process design utilising glycerol-steam reforming for an H₂-enriched gas stream, coupled with carbon dioxide removal via a chemical absorption system, followed by a techno-economic analysis. The Aspen Plus economic analyser assesses the developed model, incorporating simulation results and literature data. Initially, the CO₂ capture unit was planned with a standalone absorber and stripper, later integrated for solvent makeup calculation. Findings reveal that as catalyst loading increased from 5 to 50 kg, glycerol conversion and product molar fraction improved. For a targeted H₂ production of 10 t/day, optimal reactor dimensions are 3.2 m diameter and 30 m length, corresponding to a reactant flow of 105 t/day and a 2.52 MW heat duty at stoichiometry conditions. To capture 95% CO₂ from the reformed product stream, absorber and stripper packing heights of 12 and 7 m, respectively, with column diameters of 1.25 and 2.71 m are necessary. The production cost of H₂ is determined to be $3.8 per kg, as revealed by the techno-economic analysis. Calculated values for net present value, discounted payback period, and internal rate of return stand at $30 million, 5 years, and 25.0%, respectively. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"15 1","pages":"23-35"},"PeriodicalIF":2.7,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2320","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380059","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}