Chemical Engineering Science最新文献

{"title":"Enhancing CO2 utilization: A review of long-chain α-Olefin synthesis via CO2 hydrogenation with Fe-based catalysts","authors":"Wenqi Liu, Zhihui Fan, Shanshan Dang, Zhenzhou Zhang, Minghui Zhu, Weifeng Tu","doi":"10.1016/j.ces.2025.122692","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122692","url":null,"abstract":"The process of catalytic hydrogenation of carbon dioxide into long-chain α-olefins (LAOs, C₄₊⁼) offers a highly potential and advantageous approach for simultaneously addressing carbon emission reduction and the production of high-value chemicals. However, practical implementation is hindered by low LAO selectivity due to limited understanding of CO₂ activation, poor control over carbon chain growth, and catalyst design limitations. Despite enhancements in activity through modifications like adding promoters or creating dual active sites, the selectivity of LAOs remains suboptimal. Key challenges include promoting C-C coupling for olefin formation while minimizing over-hydrogenation and isomerization. This review provides a comprehensive overview of recent developments in Fe-based catalytic systems for CO₂-to-LAOs conversion, focusing on reaction mechanisms, catalyst modification strategies, and recent advancements in enhancing LAOs selectivity. Future research should focus on developing catalysts that enhance chain growth capability with increasing β-hydrogen elimination and suppressing excessive hydrogenation activity. This approach will help achieve a better balance between chain growth and appropriate olefin desorption, ultimately leading to higher yields of C₄₊ LAOs.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"23 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Boost of trace methane photo-oxidation in the presence of water vapor via the interfacial hydrophobic effect","authors":"Yun Wang, Xulong Song, Haiyuan Zhang, Junyu Ying, Zihan Liu, Hanbing Xiong, Tuo Ji, Wei Cao, Yang Bai, Tingzhen Ming, Jiahua Zhu, Xiaohua Lu, Wei Li, Liwen Mu","doi":"10.1016/j.ces.2025.122744","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122744","url":null,"abstract":"The study of water resistance of methane photo-oxidation catalysts is important and challenging for the removal of methane from the atmosphere. Herein, we investigate the mechanistic role of water in the photocatalytic oxidation of trace methane on ZnO decorated with various metal (Cu, Pt). We found that suppressing water dissociation at active sites mitigates hydroxyl-induced catalyst poisoning. Critical insight reveals that photo-generated holes (h⁺) mediate the conversion of passivating hydroxyl groups (OH*) into reactive hydroxyl radicals (•OH), simultaneously liberating active sites and promoting the reaction. In addition, temperature-dependent experiments revealed that increasing the temperature from 20 to 80 °C enhanced the methane conversion by approximately 4-fold, proving that partial desorption of water molecules from the catalyst surface releases active sites. The experimental results show that 0.5 % Pt/ZnO is about 2-fold more water resistant than 0.5 % Cu/ZnO. These findings provide valuable experience and guidance for both mechanistic understanding of water-mediated methane photooxidation and rational design of high-performance catalysts.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"16 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-membrane module for gas–liquid contact: Development of a methodology for side-stream ozone injection system applications","authors":"Mateus P. Caixeta, Paulo H. Marrocos, Ricardo J. Santos, Isabel S. Fernandes, Vítor J.P. Vilar","doi":"10.1016/j.ces.2025.122722","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122722","url":null,"abstract":"This work proposes an alternative methodology to scale-up a tube-in-tube gas–liquid contacting membrane module by developing a full-scale multi-membrane module. A novel hybrid CFD-analytical model, previously developed to predict mass transfer coefficients and bubble dispersion of a bubbly flow in a tube-in-tube membrane module, is used to simulate the gas bubble dispersion into the water and predict the ozone-water mass transfer coefficient, the interfacial area and gas holdup of the concept membrane contacting module. The hydrodynamics and mass transfer phenomena within the multi-membrane module were investigated, aiming for its application in industrial side-stream ozone injection systems for the disinfection and resistant pollutant removal steps of freshwater/wastewater treatment processes. The study demonstrated that the module effectively dispersed bubbles into the liquid phase, resulting in homogenized ozonated water for every module design and inlet type proposed. The multi-membrane concept module generated the same order of magnitude of interfacial area (44 m⁻¹ and 128 m⁻¹ for 8 and 40 membranes, respectively) compared to standard gas–liquid contactors (from 1 m⁻¹ to 77 m⁻¹) while operating at the lower bounds of the range of gas holdup values for these standard contactors <span><span style=\"\"></span><span data-mathml='&lt;math xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;mo stretchy=\"true\" is=\"true\"&gt;(&lt;/mo&gt;&lt;/math&gt;' role=\"presentation\" style=\"font-size: 90%; display: inline-block; position: relative;\" tabindex=\"0\"><svg aria-hidden=\"true\" focusable=\"false\" height=\"2.779ex\" role=\"img\" style=\"vertical-align: -0.812ex;\" viewbox=\"0 -846.5 389.5 1196.3\" width=\"0.905ex\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g fill=\"currentColor\" stroke=\"currentColor\" stroke-width=\"0\" transform=\"matrix(1 0 0 -1 0 0)\"><g is=\"true\"><use xlink:href=\"#MJMAIN-28\"></use></g></g></svg><span role=\"presentation\"><math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mo is=\"true\" stretchy=\"true\">(</mo></math></span></span><script type=\"math/mml\"><math><mo stretchy=\"true\" is=\"true\">(</mo></math></script></span>0.7 % and 2.4 % for 8 and 40 membranes, respectively; whereas the conventional contactors remained within 1.5 % to 5.8 %). Consequently, the investigated module promoted an effective use of the injected gas. In addition, the deep comprehension of the gas–liquid mass transfer and flow behavior in membrane modules acquired through the proposed methodology enabled the optimization of multi-membrane gas–liquid contacting modules for industrial applications.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"51 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"When good fits fail: assessing the reliability of machine learning models for PSA CH4/CO2 process optimization","authors":"Klaus F.S. Richard,&nbsp;Diana C.S. Azevedo,&nbsp;Moises Bastos-Neto","doi":"10.1016/j.ces.2025.122746","DOIUrl":"10.1016/j.ces.2025.122746","url":null,"abstract":"<div><div>This work investigates the application of machine learning (ML) models for predicting and optimizing the performance parameters purity and recovery of a CH₄/CO₂ separation process via Pressure Swing Adsorption (PSA). Several ML algorithms were trained and tested using datasets generated from a detailed phenomenological PSA model, and their optimization performance was benchmarked against a reference Pareto front obtained from the same detailed model. The study critically examines the reliability of common goodness-of-fit metrics from the training and testing phases as predictors of optimization accuracy. Results reveal that high fitting accuracy in the dataset does not guarantee accurate optimization outcomes, while models with comparatively poorer fitting during training may outperform more complex models in the optimization task. Furthermore, traditional global error metrics are shown to be insufficient predictors of optimization reliability, with segmented, range-based error analysis providing better insights. Despite these challenges, the Gradient Boosted Tree model delivered highly accurate Pareto fronts with a computational cost reduction of over 65% compared to the full phenomenological model. These findings underscore both the potential and the limitations of ML-assisted process optimization and highlight the need for more nuanced error evaluation strategies in surrogate-based optimization frameworks.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"321 ","pages":"Article 122746"},"PeriodicalIF":4.3,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145227634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Atomization characteristics of self-excited oscillation nozzles based on a gas–liquid two-phase premixed inlet","authors":"Wenhui Zhai, Yuxin Fan, Yuren Xu, Zhenhua Luo","doi":"10.1016/j.ces.2025.122717","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122717","url":null,"abstract":"This study investigates the atomization characteristics of a Coanda-effect-based self-excited oscillation nozzle integrated with air–fuel premixing to mitigate oxidative coking in high thermal load combustion chambers. Three-dimensional unsteady Reynolds-Averaged Navier–Stokes (URANS) simulations using Fluent 2021 R1, coupled with Volume of Fluid (VOF) and Discrete Phase Model (DPM) methods, were conducted to analyze gas–liquid interaction mechanisms. The effects of air–fuel ratio (AFR) and nozzle geometry were examined by an experimental setup comprising a pre-mixing cavity and self-excited oscillation nozzle. Results reveal that increasing AFR reduced velocity gradient extremes in the mixing cavity, decreased jet deflection and low-pressure zones in the external field, and promoted axial droplet aggregation, thereby suppressing spray cone angle expansion. Nozzle size significantly influences behavior: small nozzles (<em>D</em>1.8<em>H</em>1.8, indicating a throat diameter and height both measuring 1.8 mm) stabilize self-excited oscillation frequency at 600 Hz with a maximum deflection angle of 17°, while high shear forces enhance liquid film breakup. Larger nozzles (<em>D</em>4.5<em>H</em>4.5) exhibit slower oscillation frequency increases, decreasing deflection angles, and a higher liquid phase concentration near edges. Atomization analysis shows that under low AFR (&lt;30 %), Sauter Mean Diameter (SMD) reduces by up to 45 %, stabilizing beyond 60 % AFR. Spray cone angle decreases with higher AFR and fuel flow rates. Elevated temperatures lead to a significant reduction in SMD within low AFR ranges (10 %–50 %), with a decrease of 65 μm observed at an AFR of 20 % under a temperature increase of 100 K. In contrast, within high AFR ranges (&gt;50 %), SMD remains stable and exhibits minimal sensitivity to rising air temperatures.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"8 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145229484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanodiamond hybrid nanofiltration membranes: Synergistic enhancement of permeability and selectivity for sulfate-selective separation","authors":"Ying Zhang ,&nbsp;Mingyu Yang ,&nbsp;Zhijie Qi ,&nbsp;Zhenjie Lu ,&nbsp;Shugang Pan ,&nbsp;Shencheng Pan ,&nbsp;Weihua Ma ,&nbsp;Xin Wang ,&nbsp;Junwu Zhu ,&nbsp;Yongsheng Fu","doi":"10.1016/j.ces.2025.122728","DOIUrl":"10.1016/j.ces.2025.122728","url":null,"abstract":"<div><div>Polydopamine-coated ethylenediamine-modified nanodiamonds (NDs-EDA@PDA) were incorporated into nanofiltration (NF) membranes, leading to enhanced permeability and selectivity. NDs boost mechanical attributes, preserving salt rejection under high temperature and pressure. PDA, with strong adhesion, improves compatibility. EDA and PDA amino groups and phenolic hydroxyl groups form additional covalent bonds, refining smaller pores (0.469 nm) for size-sieving. PDA’s hydrophilic groups accelerate water transfer and its oxygen anions amplify Donnan effect, repelling divalent anions. Molecular dynamics simulations confirm that NDs-EDA@PDA hinder piperazine diffusion, thereby resulting in the formation of a thinner polyamide layer. Consequently, NDs-EDA@PDA NF membrane achieves enhanced permeability (7.02 L m⁻²h⁻¹ bar⁻¹, 1 g L⁻¹ Na₂SO₄, 5 bar, 25 ℃, pH 6.5) and NaCl/Na₂SO₄ selectivity (97.49, single salt, 1 g L⁻¹ Na₂SO₄ and 1 g L⁻¹ NaCl, 5 bar, 25 ℃) through the aforementioned synergistic effect, achieving a dual improvement in permeability-selectivity. This research provides valuable theoretical and experimental insights into NDs’ application in NF membranes. And it deepens understanding of molecular mass transfer within membranes, and facilitates future development of high-performance NF membranes.</div></div>","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"321 ","pages":"Article 122728"},"PeriodicalIF":4.3,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145226731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flow transitions in evaporating saline droplets: interplay between Rayleigh convection and Marangoni effects","authors":"Lingfeng Wang, Zhengtao Li, Zhijie Yuan, Xuehua Ruan, Wu Xiao, Xuemei Wu, Gaohong He, Xiaobin Jiang","doi":"10.1016/j.ces.2025.122721","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122721","url":null,"abstract":"Saline droplet evaporation constitutes a fundamental physicochemical phenomenon with critical applications in separation technologies, desalination processes, and crystal engineering. This investigation elucidates circulation mechanisms during saline droplet evaporation through systematic examination of various geometrical configurations and thermal conditions. A computational fluid dynamics approach validated through optical visualization and infrared thermal imaging revealed distinct circulation regimes governed by the interplay between Rayleigh convection and Marangoni effects. At ambient conditions, droplets exhibited predominantly Rayleigh-driven convection, with contact angles below 90° generating peripheral deposition patterns while angles exceeding 90° produced centralized crystal accumulation due to non-uniform evaporation flux distribution. Temperature modulation induced substantial flow pattern transitions at specific critical thresholds, with thermal Marangoni effects overriding Rayleigh convection when temperature differences exceeded 0.94 K for droplets with 120° contact angles. Circulation transitions manifested more prominently in droplets with larger contact angles, characterized by progressive transformation from Rayleigh-driven clockwise flows to thermal Marangoni-driven counterclockwise patterns. Interfacial heat transfer coefficients exhibited deterministic influence on circulation dominance, with values below 10 W/m²·K maintaining Rayleigh-dominated flow and values between 100–1000 W/m²·K establishing thermal Marangoni dominance. A comprehensive phase diagram correlating dimensionless Rayleigh and Marangoni numbers to circulation patterns was developed, providing predictive capability for flow regime transitions under varying evaporation conditions. The established quantitative relationships between thermal parameters and circulation mechanisms enable precise control of crystal deposition morphologies through interfacial thermal regulation.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"20 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"B/FeF3@AP three-dimensional energetic microsphere: improve the combustion performance and energy release of B powders","authors":"Zehao Liu, Fan Cui, Chong Chen, Bobo Zhang, Chunlin Chen, Yudong Shi, Ye Yuan, Kaixiang Yang, Fei Xiao, Taixin Liang","doi":"10.1016/j.ces.2025.122705","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122705","url":null,"abstract":"The high ignition temperature and low combustion efficiency of boron (B) powders seriously affect the efficient application of boron-based composite energetic materials. Herein, we prepared high-energy microsphere units containing iron fluoride (FeF₃), ammonium perchlorate (AP) and B powders by using a atomization spheroidization method to improve the combustion performance and energy release efficiency of micron-B powder. The results shown that the composition of the package structure and the incorporation of FeF₃ can effectively reduce the initial oxidation and ignition temperatures of B powders by about 23.55 % and 33.2 %. Moreover, when FeF₃ content is 1 %, spherical B/FeF₃@AP composites have excellent reaction calorific value (8705.7J/g) and maximum combustion temperature (1218.9 ℃), with relative increases of 22.6 % and 39.8 %. The linear combustion rate reached 5.4 cm/s, about 157 % higher than the physical mixture B/AP. Finally, the combustion mechanism of B/FeF₃@AP was proposed by combining thermogravimetry coupled infrared spectroscopy, spectral analysis of the combustion process and combustion product analysis. This study provides valuable insights for applying boron-based composite energetic materials in the field of energetic materials","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"78 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Directional oil retention and abrasion properties of microgrooved self-cleaning slippery surfaces for sanitation applications","authors":"Ratnadeep Samanta, Sriharitha Rowthu","doi":"10.1016/j.ces.2025.122743","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122743","url":null,"abstract":"Lubricant infused slippery surfaces are vulnerable to external shear flow of fluids (water, air). This study reports the influence of mimicked commode flushing turbulent (<em>Re</em> ∼ 6129) water flow on the silicone oil retention and feces self-cleaning properties in microgrooved polydimethylsiloxane replicas fabricated using banana leaf template. Oil retention amounts are 28 %, 42 %, and 24 % for 20 min of constant turbulent flow in parallel (∥), perpendicular (⊥) directions to grooves and on untextured surfaces, respectively. Post flow, water slide-off angles (SAs) are ∼ 9° for ⊥ flow, ∼14° for ∥ flow, showcasing the retention of slipperiness. On the other hand, untextured surfaces lost their slipperiness. Also, oil retention in air under 200 gliding water droplets shows trend of ⊥ to grooves &gt; ∥ to grooves &gt; untextured. Furthermore, oil coated microgrooves displayed smaller coefficient of friction of 0.35 ± 0.009 (⊥ to grooves), 0.38 ± 0.003 (∥ to grooves), as compared to untextured surfaces (1.73 ± 0.198), when abraded with a steel ball in reciprocating motion using 1 N load, 40 mm⋅s⁻¹ sliding speed and 10 mm sliding distance. After 30 consecutive cycles of synthetic feces deposition, its residual amount is lowest when sliding on ∥ to grooves as compared to ⊥ to grooves and untextured surfaces. Clearly, a trade-off between ⊥ and ∥ directions to grooves can provide optimal oil retention and self-cleaning properties in sanitation and sewage systems.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"32 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145226730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular simulation of CO2–hydrocarbon minimum miscibility pressure in tight reservoir nanopores under varying wettability conditions","authors":"Ruiqian Tang, Dali Hou, Wang Yu, Haiyan Zhu, Fengming Gong","doi":"10.1016/j.ces.2025.122730","DOIUrl":"https://doi.org/10.1016/j.ces.2025.122730","url":null,"abstract":"Tight oil reservoirs are characterized by low porosity, low permeability, and the development of micro- and nano-scale pore structures. Conventional depletion and water flooding methods are generally ineffective, making CO₂ flooding a widely adopted approach to enhance oil recovery. The minimum miscibility pressure (MMP) is a key parameter in determining whether CO₂ can achieve miscibility with crude oil. However, due to the strong heterogeneity in the wettability of tight oil reservoirs, the mechanism by which different wettability conditions affect the MMP of CO₂–oil systems remains unclear.In this study, quartz nanopore models with varying wettability were constructed, and Non-Equilibrium Molecular Dynamics (NEMD) simulations were performed to calculate the MMP within nanopores. The effects of temperature, pore size, wall wettability, and crude oil composition on the MMP and CO₂ storage efficiency were systematically analyzed. The results show that the MMP within nanopores is lower than that in the bulk phase. MMP increases with temperature and exhibits a non-monotonic trend with decreasing pore size—initially decreasing and then increasing. As the wettability shifts from water-wet to oil-wet, the MMP tends to increase. Due to the strong interactions between the pore wall and CO₂ molecules, water-wet reservoirs are more favorable for CO₂ storage and result in a lower MMP in CO₂–oil systems.This study provides new insights into the microscopic miscibility mechanisms of CO₂ and oil under varying wettability conditions in tight reservoirs and offers theoretical support for enhancing oil recovery and CO₂ sequestration through CO₂ injection in tight oil formations.","PeriodicalId":271,"journal":{"name":"Chemical Engineering Science","volume":"108 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145216074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}