Energy & Fuels最新文献

{"title":"Kinetic Formation Process of Carbon Dioxide Hydrate in Porous Sands under 274.15–280.15 K Reaction Temperature and 20–70% Initial Water Saturation","authors":"Wenchao Bo,&nbsp;Jinan Guan*,&nbsp;Shujia Wang,&nbsp;Lihua Wan,&nbsp;Caili Huang,&nbsp;Xuebing Zhou,&nbsp;Deqing Liang and Qi Wu*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0410410.1021/acs.energyfuels.4c04104","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04104https://doi.org/10.1021/acs.energyfuels.4c04104","url":null,"abstract":"<p >Using gas hydrates to store CO₂ is currently considered a promising technology for carbon capture, utilization, and storage with great industrial application prospects. Three groups of phase equilibrium experiments with 72 groups of environmental conditions were arranged to conduct the reaction kinetics of CO₂ hydrate in natural sands. The effects of 20–70% initial water saturation, 274.15–280.15 K reaction temperature, and 0.025–0.2 mm natural sands on the reaction process were analyzed. From test results, the final gas storage of a porous media system is proved to depend largely on the initial water saturation and has a linear relationship with it. The reaction temperature has an insignificant promotion effect on the final gas storage, and the porous sands with a particle size of 0.025–0.055 mm consistently operate at the lowest level in 93.05% of the working conditions. The results reveal that the classic fugacity model has a good fitting effect at lower reaction temperatures (274.15–278.15 K), while the fitting effect will be reduced in other conditions. After inserting the capillary pressure of the van Genuchten style into the modified fugacity kinetic model, the applicability scope and accuracy of the model can be excellently improved.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22330–22339 22330–22339"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"2024 Pioneers in Energy Research: Robert Brown","authors":"Anthony Dufour*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0417710.1021/acs.energyfuels.4c04177","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04177https://doi.org/10.1021/acs.energyfuels.4c04177","url":null,"abstract":"","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 24","pages":"23167–23172 23167–23172"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142842910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic Activity and Reaction Mechanism of Ru-Modified Ce0.7Zr0.3Ox Catalysts for Selective Catalytic Oxidation of Ammonia","authors":"Hongzhe Zhao,&nbsp;Zhitao Han*,&nbsp;Shaosi Cheng,&nbsp;You Tian,&nbsp;Qingliang Zeng,&nbsp;Yeshan Li and Dong Ma,&nbsp;","doi":"10.1021/acs.energyfuels.4c0373910.1021/acs.energyfuels.4c03739","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c03739https://doi.org/10.1021/acs.energyfuels.4c03739","url":null,"abstract":"<p >To solve the problem of the poor low-temperature NH₃ selective catalytic oxidation (NH₃–SCO) performance of CeZrO_<i>x</i> catalysts, a series of Ru/CeZrO_<i>x</i> catalysts with various Ru mass ratios were prepared via the impregnation–precipitation method. The introduction of Ru could significantly improve the low-temperature catalytic performance of CeZrO_<i>x</i> catalysts from activity test results. Among prepared catalysts, the catalyst with a Ru mass ratio of 0.5 wt % and a Ce/Zr molar ratio of 7:3 (denoted as Ru_0.5/CZO) was considered to have an excellent NH₃–SCO performance; NH₃ conversion reached 100 and 91.2% N₂ selectivity at 237 °C. Physicochemical properties of Ru_0.5/CZO and CZO catalysts were compared through a series of characterization tests to investigate the relationship between the introduction of Ru and the NH₃–SCO performance. H₂-TPR results revealed an interaction between the Ru and Ce species. The introduction of Ru significantly shifted the reduction peak toward the lower-temperature direction, enhancing the low-temperature redox performance of the CZO catalyst. NH₃-TPD results indicated that Ru_0.5/CZO catalysts had abundant acid sites on its surface, facilitating NH₃ adsorption and oxidation. In situ DRIFTS characterization results indicated that the reaction mechanism of the Ru_0.5/CZO catalyst might be both internal-selective catalytic reduction (i-SCR) and imine (−NH) mechanisms.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22440–22449 22440–22449"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Two-Stage Prediction Framework for Oil and Gas Well Production Based on Classification and Regression Models","authors":"Dongdong Hou,&nbsp;Wente Niu*,&nbsp;Guoqing Han,&nbsp;Yuping Sun,&nbsp;Mingshan Zhang and Xingyuan Liang,&nbsp;","doi":"10.1021/acs.energyfuels.4c0476210.1021/acs.energyfuels.4c04762","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04762https://doi.org/10.1021/acs.energyfuels.4c04762","url":null,"abstract":"<p >Oil and gas well production forecasting is a crucial aspect of exploration and development, yet it confronts challenges posed by complex geological conditions, incomplete data sets, and nonlinear interactions among multiple factors, all of which constrain the accuracy of traditional forecasting methods. Furthermore, existing approaches often overlook the intrinsic variations in production characteristics among wells due to differences in geological settings and development histories, employing generalized models that further hinder the enhancement of forecasting effectiveness. To address these issues, this study introduces an innovative staged forecasting framework that integrates classification and regression algorithms to achieve precise production forecasting for new oil and gas wells. Leveraging historical data, the framework utilizes a 3 year cumulative production as the label and establishes reasonable thresholds to categorize wells into low-yield and high-yield groups, thereby capturing the distinct production characteristics of each category. Subsequently, advanced classification algorithms are employed to train a classification model that accurately categorizes new wells. Dedicated regression models are then trained separately for the classified low-producing and high-producing wells, aiming to further elevate the accuracy of production forecasting. The application results demonstrate that the proposed method, compared to conventional forecasting approaches, exhibits significant improvements in both prediction accuracy and practicality, offering a novel perspective and methodology for the field of oil and gas well production forecasting.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22219–22229 22219–22229"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Celebrating 2024 Pioneers in Energy Research","authors":"Hongwei Wu*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0417610.1021/acs.energyfuels.4c04176","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04176https://doi.org/10.1021/acs.energyfuels.4c04176","url":null,"abstract":"","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"21665 21665"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilizing High Melting Point Long-Chain Fatty Acid Based CO2 Response ILs for Suppression of CO2 Gas Channeling and Clay Swelling","authors":"Yingjiang Chen,&nbsp;Xingyu Lin,&nbsp;Ruoxin Zhang,&nbsp;Ziteng Yang,&nbsp;Na Wang,&nbsp;Li Wang,&nbsp;Hongsheng Lu* and Zhiyu Huang*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0438010.1021/acs.energyfuels.4c04380","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04380https://doi.org/10.1021/acs.energyfuels.4c04380","url":null,"abstract":"<p >The water-alternating-with-gas process is widely applied in oil recovery but faces challenges such as gas channeling and clay swelling that significantly reduce efficiency. To address these issues, a CO₂-responsive liquid–solid transformation profile control agent (MA–D230) was designed. This agent was synthesized from myristic acid (MA) and <i>O</i>,<i>O</i>′-bis(2-aminopropyl)polypropyleneglycol (D230) with a molar ratio of 2:1. MA was transferred from the solid to the liquid phase in D230 solution by electrostatic self-assembly. Upon CO₂ injection, MA was precipitated from the MA–D230 aqueous solution as a solid particle profile control agent, while D230 was protonated as a clay swelling inhibitor. The mechanisms of MA precipitation and D230 protonation were confirmed by the ¹H NMR analysis. After CO₂ injection, RE-MA precipitated from the MA–D230 aqueous solution, exhibiting the same crystal structure, structural features, and melting point as its original state. Furthermore, RE-MA can form in environments with salinity levels ranging from 0 to 2000 ppm, while particle sizes in the micrometer range are generated upon CO₂ injection. Moreover, the core flooding experiments further demonstrated that MA–D230 had an excellent ability to enhance oil recovery. In short, a new method was proposed to solve the problems of gas channeling and clay swelling in CO₂ flooding during the WAG process.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22365–22375 22365–22375"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142694594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Highly Stable BaZrS3 Chalcogenide Perovskites for Photoelectrochemical Water Oxidation","authors":"Aparajita Das,&nbsp;Jigar Shaileshkumar Halpati,&nbsp;Vidya Raj and Aravind Kumar Chandiran*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0317510.1021/acs.energyfuels.4c03175","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c03175https://doi.org/10.1021/acs.energyfuels.4c03175","url":null,"abstract":"<p >Chalcogenide perovskites have emerged as potential semiconductor materials for optoelectronic devices due to their superior visible light absorption and high thermal and chemical stability. Here, we report BaZrS₃ chalcogenide perovskites-based photoelectrode for photoelectrochemical water splitting (PEC). Experimental findings reveal that BaZrS₃ exhibits excellent stability in harsh pH conditions (pH 3–13) and shows panchromatic absorption with a band gap of 1.77 eV. Temperature-dependent impedance and Raman spectroscopy unveil the presence of polarons and suggest the possibility of polaron-mediated conduction in this material. Under 1 Sun illumination, the PEC device attains a maximum photocurrent density of 0.36 mA/cm² at 0.323 V vs Ag/AgCl at pH 12 (equivalent to 0 V vs RHE), maintaining stability for 30 min. Notably, the photoanode exhibits remarkable stability before and after the photoelectrochemical reaction. BaZrS₃ photoanode displays high surface charge separation efficiency, promoting the surface oxidation reaction.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22527–22535 22527–22535"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development and Evaluation of Ni–Cu–Pt Monolithic Catalysts for Improved Ethanol Autothermal Reforming and Hydrogen Production","authors":"Jéssica F. Zeitoune,&nbsp;Camilla D. M. Nickel,&nbsp;Bruno L. D. Santos,&nbsp;Waldemar A. A. Macedo,&nbsp;Diego A. Duarte and Rafael C. Catapan*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0411310.1021/acs.energyfuels.4c04113","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04113https://doi.org/10.1021/acs.energyfuels.4c04113","url":null,"abstract":"<p >This study investigates the development and characterization of Ni-based catalytic monoliths for ethanol reforming, focusing on the effects of incorporating Cu and Pt as promoters. Al₂O₃ monoliths were coated with α-Al₂O₃ and impregnated with Ni, Cu, and Pt by using a wet impregnation method. The catalysts were characterized by field-emission scanning electron microscopy (FESEM), energy-dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed reduction (TPR). The multitechnique characterization results revealed differences between the monometallic Ni/α-Al₂O₃ catalyst and the trimetallic Ni-Cu-Pt/α-Al₂O₃ catalyst. A unique flower-like structure was identified in the trimetallic catalyst, formed due to acid leaching during the Pt impregnation step. The metal impregnation process did not alter the crystalline structure of the Al₂O₃ substrate with both catalysts primarily exhibiting oxide phases. The Ni-Cu-Pt/α-Al₂O₃ catalyst has surface concentrations of Cu and Pt around 1.3% or lower, while Ni concentration exceeds 4.8%, confirming the presence of all three metals at the catalyst surface, despite the acid leaching caused by the Pt impregnation. TPR analysis indicated complex metal-support interactions in the trimetallic catalyst, with distinct reduction peaks compared with the monometallic Ni/α-Al₂O₃ catalyst. Catalytic evaluation revealed that the trimetallic catalyst achieved similar ethanol conversion in comparison with the monometallic Ni/α-Al₂O₃ catalyst but exhibited lower hydrogen selectivity due to reduced C–C bond breaking, likely influenced by the presence of Cu. These findings highlight the potential and challenges of using trimetallic catalysts in ethanol reforming, with implications for optimizing catalyst composition and reaction conditions for hydrogen production.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22471–22481 22471–22481"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.energyfuels.4c04113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Gas Production from Three-Phase Coexisting Sandy Hydrate Systems Induced by Depressurization: Insights into Water- and Gas-Rich Environments","authors":"Tao Lv*,&nbsp;Jie Pan,&nbsp;Pengfei Shen,&nbsp;Haiyan Jiang,&nbsp;Wujie Wang and Jing Cai,&nbsp;","doi":"10.1021/acs.energyfuels.4c0393210.1021/acs.energyfuels.4c03932","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c03932https://doi.org/10.1021/acs.energyfuels.4c03932","url":null,"abstract":"<p >Natural gas hydrates, a new mineral resource distinct from traditional coal, oil, and gas, are considered a potential successor energy source in the post-oil era. In this work, we experimentally simulated the production process of sandy hydrate systems in both water- and gas-rich environments. Hydrate samples with a saturation of approximately 35% were prepared based on the reservoir conditions of Shenhu area in the South China Sea. Hydrate decomposition, fluid flow, and heat transfer characteristics induced by depressurization were analyzed by incorporating the multiphase flow mechanism in porous media. Results showed that compared to the gas-rich system, the depressurization duration in the water-rich system could be reduced by approximately 4/9, although the overall production cycle was significantly longer. During the depressurization stage, hydrate decomposition in the water-rich system proceeded at a higher rate than in the gas-rich system, consuming more sensible heat from the reservoir. In contrast, during the constant pressure stage, the rate of hydrate decomposition reversed, with the decomposition rate constant (<i>k</i>) in the water-rich system decreasing to half that of the gas-rich system, primarily due to the difference in water content. For the water-rich system, the temperature rebound during constant pressure was delayed due to water’s high specific heat capacity. Nearly half of the hydrates decomposed during stable depressurization, with this phase accounting for only ∼5% of the total production cycle, indicating significantly higher decomposition efficiency compared with gas-rich reservoirs during this period. In water-rich systems, intensive gas production primarily occurred during the stable depressurization and constant stages, while in gas-rich systems, gas production was more evenly distributed across all stages. By the end of production, water-rich reservoirs exhibited lower gas recovery rates but higher water recovery rates than gas-rich reservoirs, demonstrating that the presence of free gas is beneficial for actual reservoir production.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"22069–22080 22069–22080"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Can R2BX4/ABX3 Heterostructures Harmonize the Stability and Efficiency of 2D/3D Perovskite Photovoltaics? A Minireview","authors":"Muhammad Sohail Abbas*,&nbsp; and ,&nbsp;Rashid Ahmad*,&nbsp;","doi":"10.1021/acs.energyfuels.4c0409210.1021/acs.energyfuels.4c04092","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c04092https://doi.org/10.1021/acs.energyfuels.4c04092","url":null,"abstract":"<p >Halide perovskites are one of the most extensively explored materials for photovoltaics, and their photoconversion efficiency has reached over 26%. Three-dimensional (3D) perovskites have exceptional optoelectronic properties but suffer from poor stability, hindering their commercialization. Contrarily, two-dimensional (2D) perovskites offer excellent stability but inferior optoelectronic performance. The structural flexibility of perovskites allows the researcher to fabricate 2D/3D mixed dimensional perovskites that exhibit superior stability without compromising the efficiency. Herein, we have explored the available literature on a distinct category of 2D/3D perovskites, R₂BX₄/ABX₃ type mixed phase heterostructures. In such heterostructures, a minor quantity of phase pure 2D perovskites coincides with a bulk of 3D perovskites. The compositional development, structural variations, and controlling the level of 2D doping in this kind of perovskite are discussed. Moreover, film quality, photophysics, photovoltaic performance, and stability of such heterostructures are also discussed. Finally, our efforts aim to offer a glimpse into the potential future applications of R₂BX₄/ABX₃ in improving perovskite photovoltaics and other applications beyond solar cells.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"38 22","pages":"21832–21844 21832–21844"},"PeriodicalIF":5.2,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142691287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}