Journal of CO2 Utilization最新文献

{"title":"Metal-free conversion of CO2 to non-isocyanate polyurethane for solid amine sorbent pellets design for CO2 capture","authors":"Faranak Heshmatnia,&nbsp;Zahra Eshaghi Gorji,&nbsp;Nguyan Gia Huy,&nbsp;Baljeet Singh,&nbsp;Timo Repo","doi":"10.1016/j.jcou.2025.103228","DOIUrl":"10.1016/j.jcou.2025.103228","url":null,"abstract":"<div><div>Green synthesis of non-isocyanate polyurethanes (NIPUs) has attracted considerable interest as an eco-friendly alternative to traditional isocyanate-based routes. In this work, a metal-free catalytic system based on cetyltrimethylammonium bromide (CTAB) was used to transform polyfunctional epoxides into cyclic carbonates with more than 90 % conversion, which can act as key monomer precursors for NIPU formation. Furthermore, the performance of this metal-free catalyst was evaluated in a one-pot process that directly couples epoxides, CO₂ and diamine to yield NIPUs, thereby demonstrating a sustainable strategy for NIPU synthesis that leverages benign catalytic conditions and CO₂ fixation. The synthesized NIPU was explored as a binder to produce shaped solid amine sorbents for CO₂ capture using a 15 % CO₂ stream, with the resulting hollow pellets exhibiting a carbon capture capacity of 29.5 mg/g.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103228"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145098249","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":"Nitrogen-rich covalent triazine frameworks as efficient supports for nickel-catalyzed CO2 conversion","authors":"Mohadeseh Rashvand ,&nbsp;Mojtaba Khorasani","doi":"10.1016/j.jcou.2025.103279","DOIUrl":"10.1016/j.jcou.2025.103279","url":null,"abstract":"<div><div>A nitrogen-rich covalent triazine framework (CTF) with a low carbon-to-nitrogen (C/N) molar ratio of 1.46 was synthesized as a solid nitrogen-containing ligand, offering abundant coordination sites for the immobilization of nickel(II) acetate catalyst for CO₂ utilization. The resulting heterogeneous Ni-CTF catalyst was thoroughly characterized by porosimetry, TGA, FTIR, Raman spectroscopy, SEM-EDAX, XPS, XRD, and CO₂ adsorption capacity analyses. Ni-CTF efficiently promoted the direct coupling of carbon dioxide with epoxides under relatively mild conditions (0.25 mol% Ni-CTF, 0.5 mol% TBAB, 7.5 bar CO₂, 100 °C). To clarify the individual roles of each catalytic component, a series of control experiments were conducted under identical conditions, including Ni-CTF alone, the pristine CTF, unsupported nickel(II) acetate, and various co-catalysts with distinct chemical properties. These systematic investigations provided deeper insight into the contributions to catalytic performance. Ni-CTF displayed excellent recyclability, retaining both activity and selectivity over at least four consecutive cycles without noticeable loss in performance. The observed catalytic performance is attributed to the organic nature of the CTF, which facilitates the diffusion of organic epoxide molecules, as well as to the nitrogen-rich functionalities embedded within the triazine network. These nitrogen sites, in conjunction with their ability to coordinate nickel species, significantly enhance the CO₂ adsorption capacity of the catalyst.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103279"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145614768","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":"Tuning catalyst performance in methane dry reforming via microwave irradiation of Nickel-Silicon carbide systems","authors":"Christel Olivier Lenge Mbuya ,&nbsp;Kunal Pawar ,&nbsp;Mitra Jafari ,&nbsp;Parisa Shafiee ,&nbsp;Chike George Okoye Chine ,&nbsp;Pilar Tarifa ,&nbsp;Bogdan Dorneanu ,&nbsp;Harvey Arellano-Garcia","doi":"10.1016/j.jcou.2025.103270","DOIUrl":"10.1016/j.jcou.2025.103270","url":null,"abstract":"<div><div>The dry reforming of methane (DRM) is a promising route for converting greenhouse gases such as methane (CH₄) and carbon dioxide (CO₂) into valuable syngas, hydrogen (H₂) and carbon monoxide (CO). However, traditional nickel (Ni)-based catalysts suffer from rapid deactivation due to carbon deposition and sintering, especially when supported on low thermal conductivity materials. In this work, a novel post-synthesis microwave irradiation (MIR) treatment is introduced to systematically optimize the performance of Ni – β – SiC and Ni – Ti – Cβ – SiC catalysts for DRM. Unlike previous studies that have used MIR during reaction or with different supports, this approach tunes the metal – support interactions and textural properties of Ni – β – SiC and Ni – Ti – Cβ – SiC catalysts by varying the MIR exposure time after catalyst synthesis. MIR post-treatment (10–25 s) increased the CH₄ conversion to 65 % and the CO₂ conversions to 62 % for Ni–β–SiC catalysts and improved the H₂/CO ratio to 0.80, with stable performance over 20 h. For Ni–Ti–Cβ–SiC, MIR (10–20 s) maintained CH₄ conversion up to 60 % and CO₂ conversion to 58 % over 20 h, while the untreated catalyst, though initially higher, deactivated rapidly. Excessive MIR (30 s) reduced performance for both catalyst types, underscoring the need for optimal exposure time. These findings demonstrate post-synthesis MIR provides a tuneable approach for enhancing both the activity and durability of Ni/SiC – based DRM catalysts through controlled modification of metal – support interactions. This work offers new insights for the design of robust catalysts aimed at greenhouse gas utilization and sustainable syngas production, with activity and stability enhancements linked to controlled changes in metal – support interactions.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103270"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462497","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":"Application of acid digestion-based total inorganic carbon measurement for carbonated cement-based materials","authors":"Ryo Kurihara ,&nbsp;Luge Cheng ,&nbsp;Ryusei Igami ,&nbsp;Zhenzhen Wang ,&nbsp;Abudushalamu Aili ,&nbsp;Kiyuki Noto ,&nbsp;Minako Tanaka ,&nbsp;Haruka Takahashi ,&nbsp;Ippei Maruyama","doi":"10.1016/j.jcou.2025.103266","DOIUrl":"10.1016/j.jcou.2025.103266","url":null,"abstract":"<div><div>There is growing societal demand for methods to quantify the amount of CO₂ immobilized in cement-based materials. In this study, we compared and evaluated multiple analytical approaches: two different interpretation methods applied to thermogravimetric analysis (TGA) data conventionally used in this field, and two techniques widely adopted in soil science and related areas. The first of these involves heating the sample to release CO₂, which is then quantified using infrared absorption spectroscopy; the second involves dissolving carbonates in the sample using acid, with the evolved CO₂ gas similarly measured using infrared absorption. In carbonated cement pastes, when silica gel and carbonates are in close contact, CO₂ may be released at relatively low temperatures. This temperature range overlaps that of organic matter decomposition, which can complicate quantitative analyses using thermal methods. However, accurate quantification is feasible in systems with minimal organic content. During acid decomposition, silica gel may interfere with carbonate dissolution. Nevertheless, if the sample is sufficiently ground, an appropriate volume of the acid solution is used, and the dissolution time is properly managed under stirring conditions, this method offers a simple and practical means for CO₂ quantification.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103266"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145462494","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":"Ion-bridged hydroxyapatite nanofiber bundles via supercritical CO2-mediated mesoscale nanoarchitectonic for robust hydrophobicity","authors":"Wenjing Guo ,&nbsp;Yannan Zhou ,&nbsp;Binbin Hu ,&nbsp;Kanglin Feng ,&nbsp;Xuefeng Wei ,&nbsp;Shouren Zhang ,&nbsp;Baocheng Yang","doi":"10.1016/j.jcou.2025.103263","DOIUrl":"10.1016/j.jcou.2025.103263","url":null,"abstract":"<div><div>Conventional hydrophobic ceramic coatings exhibit compromised mechanochemical robustness due to static templating and decoupled organic-inorganic assembly. Here we introduce a supercritical carbon dioxide (SC CO₂) strategy to engineer mesoscale self-assembly—where interactive inorganic-organic building blocks couple across time and space—to enable hierarchical structured hydroxyapatite (HAP) nanofiber bundles with embedded hydrophobicity. Our findings demonstrate that SC CO₂ generates dynamic microcompartments and a mildly acidic environment that not only facilitate the rapid growth of HAP nanofibers with restricted <em>c</em>-axis orientation but also establish directional Ca^2 + –PO₄³⁻ ionic bridges that interconnect nanofibers into a cohesive inorganic network, in which oleate anions (OL⁻) <em>in situ</em> bind at ionic junctions via bidentate chelation, forming a robust hydrophobic layer. This green and scalable process yields advanced hydrophobic ceramic coatings, which have been successfully used to construct HAP-based fire-resistant paper with superior self-cleaning and oil-water separation capability, as well as sustainable Chinese Xuan paper with enhanced writing performance. Such mesoscale engineering, which unifies synthesis, assembly, and function, represents a new paradigm for creating robust, multifunctional biomimetic materials.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103263"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412413","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":"Synthesis of robust S-O covalent-bonded In2S3/α-Fe2O3 nanorod arrays heterojunction with a tailored heat treatment strategy for enhanced photoelectrochemical water splitting","authors":"Ai-zhen Liao ,&nbsp;Qing-hua Xie ,&nbsp;Lin-ji Zhang ,&nbsp;Wei Ren ,&nbsp;Yong Wang ,&nbsp;Chao Yang ,&nbsp;Xiao-hong Jiang ,&nbsp;Yong Zhou ,&nbsp;Zhi-gang Zou","doi":"10.1016/j.jcou.2025.103260","DOIUrl":"10.1016/j.jcou.2025.103260","url":null,"abstract":"<div><div>A robust S-O covalent-bonded In₂S₃/α-Fe₂O₃ nanorod arrays heterojunction were successfully synthesized via a modified heat treatment strategy. The resulting photoanode exhibits an exceptional photocurrent density of 2.65 mA cm⁻² at 1.23 V vs. RHE, achieving a 235 % enhancement compared to robust bare α-Fe₂O₃ (1.13 mA cm⁻² at 1.23 V vs. RHE). To our knowledge, this represents the highest photocurrent density among all reported In₂S₃/α-Fe₂O₃ systems. Moreover, the photoanode demonstrates excellent stability, maintaining over 95 % of its initial performance over 3 h in alkaline electrolyte. The outstanding PEC performances of robust S-O bonded In₂S₃/α-Fe₂O₃ photoanode originates from a synergistic effect of the following aspects: (i) Locking the morphology of FeOOH nanorod array precursor through the improved thermal annealing method decreases charge-carrier recombination; (ⅰi) Forming atomic-level S-O covalent bonds provide direct charge-transfer pathways, thereby enhancing carrier lifetime and reducing interfacial resistance; (iii) Constructing a type-II heterojunction establishes a strong internal electric field that provides a large driving force for the rapid migration of photogenerated charges; and (iv) Loading In₂S₃ efficiently passivates surface defects and promotes hole injection.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103260"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412412","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":"Green and scalable approaches for synthesis and encapsulating clean metal nanoclusters inside cerium MOFs for efficient glycerol carboxylation with CO2","authors":"Simon Lukato ,&nbsp;Agnieszka Krogul-Sobczak ,&nbsp;Grzegorz Litwinienko ,&nbsp;Ola F. Wendt ,&nbsp;Reine Wallenberg ,&nbsp;Filip Hallböök ,&nbsp;Michal Wojcik","doi":"10.1016/j.jcou.2025.103243","DOIUrl":"10.1016/j.jcou.2025.103243","url":null,"abstract":"<div><div>In the pursuit of CO₂-neutral renewable energy solutions, biofuels have emerged as one of the key strategies. However, biodiesel production generates a surplus of crude glycerol (GL), creating a need for efficient valorization pathways. The conversion of GL into value-added chemicals represents a sustainable approach to address this issue. Metal nanoclusters (NCats) embedded within metal-organic frameworks (MOFs) constitute a promising class of hybrid catalysts for GL–CO₂ coupling, yet their controlled synthesis remains limited to a few MOF systems. Herein, we present a clean, scalable, and efficient method for the synthesis of ultra-small, surfactant-free Cu, Ag, and Pd NCats encapsulated in cerium-based MOFs. The resulting catalysts were evaluated in the direct carboxylation of crude GL with CO₂. Among them, the Pd₁Cu₁@MOF1 composite demonstrated outstanding performance, achieving &gt; 73 % yield and a TOF &gt; 100 h⁻¹ with pure GL, and &gt; 14 % yield with a TOF of 30 h⁻¹ using crude GL. The method also enabled successful incorporation of trimetallic PdAgCu NCats, highlighting its potential for the sustainable synthesis of multimetallic NCats-MOF catalytic systems.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103243"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145321281","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":"Feasibility study of CO2-based cyclic solvent injection and polymer flooding alternation process to enhance heavy oil recovery","authors":"Zeyu Lin ,&nbsp;Xinqian Lu ,&nbsp;Baoxin Zhang ,&nbsp;Weidong Liu ,&nbsp;Bin Ding ,&nbsp;Yuanhao Chang ,&nbsp;Zhenhua Rui ,&nbsp;Fanhua Zeng ,&nbsp;Song Zhang","doi":"10.1016/j.jcou.2025.103276","DOIUrl":"10.1016/j.jcou.2025.103276","url":null,"abstract":"<div><div>Heavy oil reservoirs possess substantial reserves exceeding 600 billion tons. However, the recovery factor is estimated around 11 % due to high oil viscosity, indicating substantial potential for further enhancement of oil recovery. Traditional enhancing heavy oil recovery (EHOR) technologies, such as thermal recovery, are often constrained by high energy consumption and significant CO₂ emissions. To achieve green and significant improvements in heavy oil recovery, this study proposes an innovative hybrid approach: CO₂-based cyclic solvent injection (CO₂-CSI) and polymer flooding alternation process. Five experimental groups were conducted using 1D sand-pack model to evaluate EHOR potential and operational parameters. A maximum oil recovery of 70.72 % was achieved when the final CO₂-CSI cycle was alternated with 1000 ppm polymer flooding. The enhanced performance is attributed to two synergistic mechanisms: CO₂-CSI phase effectively mobilizes and produces heavy oil while reducing the residual oil viscosity; The alternating polymer flooding facilitates the formation of oil bank for CO₂-CSI, which enhances the efficiency of subsequent CO₂-CSI cycles. Furthermore, a novel ‘dual-mobility-ratio-control’ concept is introduced and validated as a key mechanism for optimizing mobility ratios in both displacing and displaced phases. Economic analysis indicated that the new proposed technology exhibited excellent economic benefits, reducing material costs by over 70 %. The EHOR technique proposed in this study demonstrates high efficiency, cost-effectiveness, and low carbon emissions, offering new insights and guidance for the development of heavy oil reservoirs.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103276"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145568543","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":"Assessment of process conditions in the dry reforming of HDPE fast pyrolysis volatiles for syngas production","authors":"Leire Olazar ,&nbsp;Laura Santamaria ,&nbsp;Martin Olazar ,&nbsp;Maider Amutio ,&nbsp;Gartzen Lopez ,&nbsp;Maite Artetxe","doi":"10.1016/j.jcou.2025.103258","DOIUrl":"10.1016/j.jcou.2025.103258","url":null,"abstract":"<div><div>The joint valorization of CO₂ and high density polyethylene (HDPE) has been carried out by means of a two-stage process consisting of plastic fast pyrolysis and in-line dry reforming. The first step of pyrolysis was carried out in a conical spouted bed reactor (CSBR) by feeding plastics continuously and the volatiles formed were reformed in a second catalytic fluidized bed reactor (FBR), in which Ni commercial methane reforming catalyst has been used. The effect of reforming temperature (600–700 °C), space time (2–25 g_cat min g_HDPE⁻¹) and CO₂/C molar ratio (1−2) on the conversions of HDPE and CO₂ has been analyzed. Furthermore, their influence on the yield of carbon containing products and H₂ production has been analyzed. Thus, an increase in temperature and space time favors HDPE and CO₂ conversion, reaching full HDPE pyrolysis volatiles conversion into gaseous products at temperatures above 650 °C, with a space time of 20 g_cat min g_HDPE⁻¹ and CO₂/C molar ratio of 1.5. Nevertheless, although an increase in CO₂/C molar ratio enhances HDPE conversion, it also leads to CO₂ conversion decrease due to excess CO₂ in the feed. In fact, an increase in all variables above the values corresponding to full conversion of HDPE enhances the reverse Water Gas Shift (WGS) reaction, and therefore increases the conversion of CO₂ to the detriment of H₂ production. Thus, a maximum H₂ production of 0.08 g_H2 g_HDPE⁻¹ has been obtained at 650 °C with a space time of 25 g_cat min g_HDPE⁻¹ and CO₂/C molar ratio of 1.5, attaining a syngas production of 4.7 g_syngas g_HDPE⁻¹.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103258"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412420","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":"Evaporation phase transition dynamic process of liquid CO2 driven by compound heat transfer in storage tanks for mine fire prevention: A theoretical model and experimental studies","authors":"Shixing Fan ,&nbsp;Yujie Peng ,&nbsp;Yankun Ma ,&nbsp;Jiarui Zhu ,&nbsp;Dengke Wang ,&nbsp;Mengru Huang ,&nbsp;Wei Wu ,&nbsp;Shuo Wu ,&nbsp;Zhengdong Liu ,&nbsp;Yukun Shi ,&nbsp;Jiaxin Ji ,&nbsp;Furu Kang ,&nbsp;Hu Wen","doi":"10.1016/j.jcou.2025.103261","DOIUrl":"10.1016/j.jcou.2025.103261","url":null,"abstract":"<div><div>Mining liquid CO₂ (L-CO₂) storage tanks are vulnerable to external high temperatures and deep geothermal during storage and transportation. The heat is transferred from the outer wall of the storage tank to the interior due to compound heat transfer effects. This ultimately results in the evaporation phase transition of the L-CO₂ inside the tank. The process causes the CO₂ to escape into the air, which increases the risk of asphyxiation in confined spaces for miners and dry ice freeze plugging. Therefore, it is necessary to investigate the evaporation phase transition dynamic process driven by compound heat transfer. In this study, an evaporation phase transition model of L-CO₂ was established based on heat transfer theory and CO₂ phase transition theory. Concurrently, seven types of physical simulation experiments of the evaporation phase transition dynamic process with different schemes were carried out, based on an experimental system for the evaporation phase transition of L-CO₂ that was constructed independently. The influence of ambient temperature and initial filling ratios was considered in the experimental study. On this basis, the relative errors of the theoretical calculation values and experimental data were discussed, and then the accuracy of the evaporation phase transition model was validated. The result indicates that increasing ambient temperature leads to faster rises in temperature and pressure within the L-CO₂ storage tank and extends the evaporation phase transition duration. The initial filling ratio primarily affects the initial storage period. Tanks with a lower initial filling ratio exhibit a more intense evaporation phase transition initially but with a shorter duration. The research results have vital theoretical guiding significance for scientific design and residual quantity prediction of mine L-CO₂ storage tanks.</div></div>","PeriodicalId":350,"journal":{"name":"Journal of CO2 Utilization","volume":"102 ","pages":"Article 103261"},"PeriodicalIF":8.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145412414","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}