Greenhouse Gases: Science and Technology最新文献

{"title":"Synergies of storing hydrogen at the crest of \u0000 \u0000 \u0000 CO\u0000 2\u0000 \u0000 ${rm CO}_{2}$\u0000 or other gas storage","authors":"Sabrine Ben Rhouma, Salaheddine Chabab, Daniel Broseta","doi":"10.1002/ghg.2278","DOIUrl":"10.1002/ghg.2278","url":null,"abstract":"<p>There are mutual benefits in storing <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm H}_2$</annotation>\u0000 </semantics></math> in sedimentary reservoirs jointly with another gas serving as a cushion gas, such as the <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>CO</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm CO}_2$</annotation>\u0000 </semantics></math> of a carbon capture and storage (CCS) operation or the natural gas of seasonal storage or left in a depleted hydrocarbon reservoir. When <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm H}_2$</annotation>\u0000 </semantics></math> occupies the crest of the reservoir, the presence of either gas is beneficial to the other. <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm H}_2$</annotation>\u0000 </semantics></math> reinforces the sealing efficiency of the caprock due to its very favorable interfacial properties with respect to brine and rock-forming minerals. <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm H}_2$</annotation>\u0000 </semantics></math> storage safety and capacity are also increased with cushion gases such as <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>CO</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm CO}_2$</annotation>\u0000 </semantics></math>, which alleviate the buoyancy pressure at the top of the gas column. The potential drawback of this storage scheme is gas/gas mixing, which can, however, be strongly reduced if, by an appropriate choice of well completion and placement, <span></span><math>\u0000 <semantics>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <annotation>${rm H}_2$</annotation>\u0000 </semantics></math> is positioned in the upper zones of the reservoir, and its injection rate is kept below a critical value corresponding to the incipient fingering instability of the <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mi>H</mi>\u0000 <mn>2</mn>\u0000 </msub>\u0000 <mrow>\u0000 <mo>/</","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 4","pages":"587-606"},"PeriodicalIF":2.7,"publicationDate":"2024-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2278","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141122061","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":"Fabrication of new in-situ ternary nano/microcomposite LDH/Ag2O/Bayerite in trimetallic NiAg/Al layered double hydroxides for CO2 capture material","authors":"Muh. Nur Khoiru Wihadi","doi":"10.1002/ghg.2282","DOIUrl":"10.1002/ghg.2282","url":null,"abstract":"<p>We reported new in-situ ternary nano/microcomposite layered double hydroxides/Ag₂O/bayerite in trimetallic NiAg/Al layered double hydroxides (LDH) via hydrothermal technique; and characterization by powder X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS), and N₂ adsorption-desorption. The formation of bayerite and silver oxide species on the LDH nanosheet depended on the excess of Al³⁺ and Ag⁺ in the solution under alkaline and hydrothermal conditions. The nitrogen isotherm adsorption profile for all ternary composites exhibited uniformity with mesoporous and lamellar characteristics. The surface area of all the composites ranged from 81.17 to 150.23 m². g⁻¹, the Barret-Joyner-Halenda (BJH) pore volume from 0.22 to 0.27 cm³. g^−1, and the average pore diameter ranged from 3.47 to 5.78 nm. All composites show a laminar plate-like structure covered with elongated pieces. The particle size of the composites ranged from 54.86 to 115.96 nm, indicating the size changed from nano to microcomposite because of the different molar ratios of Ag and Ni in the solid. The ternary composite reveals CO₂ capture activity with adsorption capacity ranging from 13.93 to 19.61 mmol g⁻¹. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"561-571"},"PeriodicalIF":2.2,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141125743","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":"Microbial impact on basalt-water-hydrogen system: Insights into wettability, capillary pressure, and interfacial tension for subsurface hydrogen storage","authors":"Adnan Aftab,&nbsp;Ahmed Al-Yaseri,&nbsp;Alexis Nzila,&nbsp;Jafar Al Hamad,&nbsp;Mohammad Sarmadivaleh","doi":"10.1002/ghg.2277","DOIUrl":"10.1002/ghg.2277","url":null,"abstract":"<p>Hydrogen (H₂) fuel is assessed to be a major component of sustainable energy systems in the net-zero world. However, hydrogen storage is challenging and requires safe and environmentally friendly solutions like H₂ geo-sequestration. This study evaluates the effects of sulphate-reducing bacteria (SRB) on H₂ geological storage potential in the basalt rock. Fourier-transform infrared spectroscopy (FTIR) findings show the presence of significant components, that is, O-Si-O and organic functional groups, that is, aromatics, amine salts, alkane, and cyclohexane in the basalt rock immersed in the nutrient solution without SRB. However, we found that C-H stretching modes of organics with peaks at 1,465 cm⁻¹ were observed. Consequently, amine salt (N-H) (850–750 cm⁻¹), solvent impurities (C-H), and alkane spectrums are components of nutrient solutions and can be results of metabolic microbial activity that can influence on the surface of the basalt rock. Hence, these changes indicate the presence of microbial activity which might affect the surface chemistry of the rock leading to wettability alteration. We observed that the contact angle (θ) of brine-H₂ on the rock surface slightly changed from 500 to 4,000 psi pressure after the effect of bacteria at 50 °C. The wettability changed the surface of the rock from strong water-wet to weak or intermediate water-wet condition (i.e., θ &lt; 75°) at 4,000 psi and temperatures 25 and 50 °C after the bacteria effect. The affiliation of brine water reduces on the rock surface with increasing temperatures and pressures, even without microbial influence. Additionally, we investigated interfacial tension and capillary pressure on SRB bacteria treated basalt which is not yet reported in the published work. Interfacial tension (IFT) and <i>P_c</i> of H₂ were reduced by 19% and 65%, respectively at 50 °C and 4,000 psi after the bacteria effect. Hence, the above findings could help to answer the key factors of the reservoir rock including wettability, capillary pressure, and interfacial tension to plan a field-scale H₂ geo-sequestration strategy under the influence of biotic life. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"546-560"},"PeriodicalIF":2.2,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2277","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140971406","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":"Performance study on mixed solvent for post-combustion carbon capture using rotating packed bed technology","authors":"Atuman Samaila Joel,&nbsp;Umar Farouk Aliyu,&nbsp;Olumide Olu Olubajo,&nbsp;Yusuf Makarfi Isa","doi":"10.1002/ghg.2280","DOIUrl":"10.1002/ghg.2280","url":null,"abstract":"<p>Modeling of CO₂ removal in a rotating packed bed using a mixed amine solution of piperazine and methyldiethanolamine with various molar concentration ratios was done with Aspen Plus^® and dynamically linked with Intel^® Visual Fortran. In addition to the mass and energy balances, all the necessary correlations for the rotating packed bed were written in Intel^® Visual Fortran. The developed model was validated, and the result showed good agreement with a percentage error of less than 10%. The model was scaled-up to absorb CO₂ from the flue gas composition of a typical 6.4 MWe biomass power plant with the goal of producing net negative CO₂ emissions. The effect of process parameters such as temperature, rotation speed, liquid-gas ratio, methyl diethanolamine concentration, and piperazine concentration on capture efficiency and regeneration energy was investigated. It was discovered that increasing the rotational speed results in an improvement in the separation efficiency. Increasing the temperature of the lean solvent causes a decrease in separation efficiency, which is due to a decrease in solubility as the temperature increases. Increasing the liquid-to-gas ratio leads to an increase in CO₂ absorption efficiency because more hydroxide ions are present to react with the CO₂. Piperazine is a reactive compound and increasing its concentration in the mixed solvent leads to an increase in CO₂ absorption efficiency. Finally, the results of the study demonstrated that a solvent mixture consisting of piperazine and methyldiethanolamine has the potential to be utilized in post-combustion CO₂ capture using rotating packed bed technology. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"400-410"},"PeriodicalIF":2.2,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2280","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140985414","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":"Research on driving factors and efficiency measures of low-carbon levels in less-developed regions: A case of Western China","authors":"Minxi Wang,&nbsp;Nuo Lu,&nbsp;Lu Liu,&nbsp;Lu Chen,&nbsp;Xin Li","doi":"10.1002/ghg.2281","DOIUrl":"10.1002/ghg.2281","url":null,"abstract":"<p>The far-reaching impacts of climate change have further strengthened the determination of governments around the world to pursue low-carbon development, and low-carbon efficiency in less developed regions has become a “shortcoming” in realizing low-carbon aspirations. We analyze the carbon emission efficiency (CEE) and its temporal evolution in less-developed regions in developing countries, such as Western China. The differentiation of Western China was evaluated in terms of spatial and influencing factors through the Theil index and the logarithmic mean divisia index (LMDI), and the innovative use of GDP gold content (GDP_gc) to represent the absolute economic level in the Theil index. Considering the net carbon emissions (NCE) are undesirable outputs, the GDP_gc is taken as the desired output. The Un-Super-SBM-CRS method obtained the net carbon emission efficiency (NCEE) values. The results show that: (1) Western regions’ NCE differences can be categorized as high per capita NCE areas (more than 25 tons), medium per capita NCE areas (10–25 tons), and low per capita NCE areas (0–10 tons). (2) The per capita-based T (Theil index) and the GDP_gc are comparable and “intra-group convergence and inter-group differentiation” can be used to describe intra-regional and inter-regional NCE differences. (3) Both the level of the economy and the level of urban development are drivers of the 11 domains, and the level of the economy is driven more than the level of urban development overall. There are significant regional differences in other factors. (4) The NCEs and their evolutionary trends in each region can be divided into single-variable and fluctuating-variable. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"526-545"},"PeriodicalIF":2.2,"publicationDate":"2024-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140989396","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 critical review of distributed fiber optic sensing applied to geologic carbon dioxide storage","authors":"Tianxiang Liu,&nbsp;Qi Li,&nbsp;Xiaying Li,&nbsp;Yongsheng Tan,&nbsp;Xiaomin Cao","doi":"10.1002/ghg.2279","DOIUrl":"10.1002/ghg.2279","url":null,"abstract":"<p>In the context of global climate change, carbon capture and storage (CCS) has become a direct and effective measure for reducing greenhouse gases emission. However, injecting CO₂ into the subsurface reservoirs may pose risks related to geological hazards. Therefore, monitoring the variations in underground temperature fields, strain fields, and vibration fields induced by CO₂ injection is essential for predicting and controlling geological hazards. Distributed fiber optic sensing (DFOS) technology, with its unique features, enables real-time monitoring of temperature, strain, and vibration. By deploying fiber optic (FO) cables inside wellbores, a DFOS can be used to effectively capture multiple underground response parameters. This paper reviews the applications of DFOS technology in CO₂ geological sequestration. The chapter covers aspects such as the literature review, principles and applications of fiber optics, and representative monitoring projects. Finally, the paper discusses the challenges and proposed solutions for DFOS technology in this context. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 4","pages":"676-694"},"PeriodicalIF":2.7,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140994215","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":"Mechanistic analysis of acid gas storage and oil recovery in naturally fractured reservoirs using single matrix block approach","authors":"Goran Shirzad,&nbsp;Zahra Sadeghzadeh,&nbsp;Mehdi Assareh","doi":"10.1002/ghg.2276","DOIUrl":"10.1002/ghg.2276","url":null,"abstract":"<p>The objective of this study is to assess the storage of acid gas, containing CO₂ and H₂S, in a depleted naturally fractured reservoir (NFR) using single matrix block (SMB) approach. The acid gas dissolution in oil is considered by Peng-Robinson equation of state and compositional simulation. The PHREEQC package is used to determine acid gas solubility in formation brine. Three types of acid gases with different compositions are used for this study and their swelling behavior and miscibility in relation to the reservoir oil are analyzed. An SMB model, with a matrix block surrounded by fractures, is constructed, and validated for simulation of a real experiment. The simulation is conducted for synthetic and real reservoir fluids when the oil is in its residual saturation. A sensitivity analysis is performed to study the effects of key parameters, such as acid gas composition, reservoir pressure, permeability, porosity and matrix height on the storage capacity and oil recovery factor. The matrix has a volume of 27 m³ and about half of acid gas storage is achieved in the first 5 years while the simulations are run for 30 years. The results show that up to 90% of remained oil is recoverable, and more than 0.67 kmol of acid gas per cubic meter of matrix is stored whether matrix contains a real oil or a synthetic one. Higher storage is achieved for higher matrix porosities and heights and large H₂S proportion in acid gas. In all cases about 10% of acid gas is trapped in water and the remaining 90% is dissolved in oil. The mineral trapping was more active in CO₂-rich acid gases. While about 10 kg of the matrix rock was dissolved in the acidic brine when the acid gas contained H₂S, the amount of the dissolved minerals in acidic brine resulted from the injection of CO₂-rich acid gas was more than 16 kg. Finally, this study gives a comparative analysis of the storage performance of acid gas mixture and pure CO₂. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"371-399"},"PeriodicalIF":2.2,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141014218","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":"Post-combustion carbon dioxide adsorption of concurrent activated and surface modified palm kernel shell-derived activated carbon","authors":"Jia Yen Lai,&nbsp;Lock Hei Ngu","doi":"10.1002/ghg.2274","DOIUrl":"10.1002/ghg.2274","url":null,"abstract":"<p>This research applied a concurrent activation and surface modification (CAM) process to synthesize palm kernel shell-derived activated carbon (PKSdAC) to obtain CO₂ affinity surface functionalization. The CAM process is a simplified activated carbon activation process that is cost-effective. The CAM process used in this study integrates sulphuric acid activation and barium chloride functionalization. The formation of barium sulphate is targeted to incorporate barium through a reduction process with carbon-containing material at elevated temperatures into PKSdAC to obtain basic metal surfaces functional group for chemical adsorption. The optimal temperature for CAM-PKSdAC CO₂ adsorption performance was at 40–60 °C, established through temperature-programmed desorption of CO₂ (TPD-CO₂) analysis. The CAM-PKSdAC adsorption performance was tested using a lab-scale adsorption system. The bed CO₂ content was determined using gas chromatography coupled with a thermal conductivity detector (GC-TCD) by manual syringe injection. CAM-PKSdAC exhibited a high CO₂ adsorption capacity of 0.89 mmol g⁻¹ from TPD-CO₂, and 1.91 mmol g⁻¹ from GC-TCD at 40 °C and 1 bar. It showed comparable CO₂ adsorption capacity to conventional surface modified-activated PKSdAC (1.96 mmol g⁻¹) while higher than commercial and modified ACs (1.14–1.60 mmol g⁻¹), but lower than potassium hydroxide modified ACs (1.81–2.10 mmol g⁻¹) at 40 °C and 1 bar. Barium promoted chemisorption of CO₂ as supplementary reaction, which increases adsorption capacity. The non-linear Dubinin Radushkevich model strongly correlates with the experimental adsorption data for CAM-PKSdAC adsorption, indicating the physisorption process via micropore filling on CAM-PKSdAC. CAM-PKSdAC showed moderate reusability with negligible variation in adsorption capacity after 10 adsorption–desorption cycles. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"492-525"},"PeriodicalIF":2.2,"publicationDate":"2024-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ghg.2274","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140679451","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":"Field pilots of carbon dioxide huff and puff method at a shale oil field","authors":"Chang Hong Gao,&nbsp;Guang Liu","doi":"10.1002/ghg.2275","DOIUrl":"10.1002/ghg.2275","url":null,"abstract":"<p>CO₂ huff and puff is a widely used enhanced oil recovery method in many oil fields, but its implementations in shale fields is scarce. This paper reports trials of CO₂ huff and puff in a shale field in China. Laboratory studies revealed that CO₂ effectively reduced oil viscosity, increased oil volume, and improved oil recovery under miscible conditions. For the three wells that received CO₂ huff and puff treatments, one well showed satisfactory results, while the other two wells demonstrated poor economics. Discussions and recommendations are made based on field experiences. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"352-355"},"PeriodicalIF":2.2,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140689780","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":"Spatial modeling of micro-scale carbon dioxide sources and sinks in urban environments: A novel approach to quantify urban impacts on global warming","authors":"Loghman Khodakarami","doi":"10.1002/ghg.2273","DOIUrl":"10.1002/ghg.2273","url":null,"abstract":"<p>Urban environments play a significant role in global carbon emissions and sequestration, necessitating a comprehensive understanding of their spatial distribution. This study presents a micro-scale spatial modeling framework to elucidate the complex interplay between CO₂ sources and sinks within urban settings. Utilizing advanced geospatial analysis, remote sensing data, and geographically weighted regression (GWR) modeling techniques, we provide a detailed characterization of emission patterns and identify the spatial distribution of carbon dioxide sequestration. Employing the bottom-up method and geographic information system techniques, we quantified carbon dioxide emissions in Isfahan City, Iran, attributing 81.68% to stationary combustion sources (residential, commercial, industrial, and power plant sectors) and 18.32% to mobile combustion sources (road-rail transportation, and non-road transportation [agricultural machinery]). To model carbon sequestration, we calculated tree biomass using allometric equations and estimated carbon sequestration per tree unit. Subsequently, we employed GWR to map the spatial distribution of carbon deposition across the city. The results revealed an annual carbon sequestration capacity of 7,704 tons, equivalent to storing 28,275 tons of CO₂. Our findings highlight the substantial contribution of urban areas to greenhouse gas emissions and the potential of urban green spaces to mitigate these emissions. The spatial modeling framework developed in this study provides a valuable tool for urban planners to optimize carbon management strategies and promote sustainable urban development. © 2024 Society of Chemical Industry and John Wiley &amp; Sons, Ltd.</p>","PeriodicalId":12796,"journal":{"name":"Greenhouse Gases: Science and Technology","volume":"14 3","pages":"470-491"},"PeriodicalIF":2.2,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140693752","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}