Fuel Processing Technology最新文献_第8页

Support effect in Ni-based catalysts for methane steam reforming: Role of MxOy-Al2O3 (M = Ni, Mg, Co) supports for enhanced catalyst stability 甲烷蒸汽重整Ni基催化剂的支撑效应：MxOy-Al2O3 （M = Ni, Mg, Co）支撑对提高催化剂稳定性的作用

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-08 DOI: 10.1016/j.fuproc.2025.108325

Yi Lin , Zaixing Wang , Lina Tang , Shi Jiang , Yu Guo , Xiaoqin Liu

{"title":"Support effect in Ni-based catalysts for methane steam reforming: Role of MxOy-Al2O3 (M = Ni, Mg, Co) supports for enhanced catalyst stability","authors":"Yi Lin , Zaixing Wang , Lina Tang , Shi Jiang , Yu Guo , Xiaoqin Liu","doi":"10.1016/j.fuproc.2025.108325","DOIUrl":"10.1016/j.fuproc.2025.108325","url":null,"abstract":"<div><div>Ni-based catalysts supported on composite metal oxides (NiO-Al<sub>2</sub>O<sub>3</sub>, MgO-Al<sub>2</sub>O<sub>3</sub>, Co<sub>3</sub>O<sub>4</sub>-Al<sub>2</sub>O<sub>3</sub>) were synthesized via coprecipitation followed by Ni impregnation to investigate the influence of support composition on catalyst stability in methane steam reforming. Accelerated deactivation protocols (methane decomposition, high-temperature sintering, hydrothermal oxidation) revealed hydrothermal oxidation as the primary cause of irreversible deactivation. The 10Ni/NiAl catalyst (10 wt% Ni/10 wt% NiO-Al<sub>2</sub>O<sub>3</sub>) showed remarkable regenerability after 923 K hydrothermal treatment, fully restoring its activity. This was attributed to coexisting reduced Ni species and readily reducible NiO, facilitating rapid reactivation. Other catalysts formed thermally stable NiAl<sub>2</sub>O<sub>4</sub>, leading to permanent deactivation. Methane cracking at 973 K had negligible effect, and 10Ni/NiAl catalyst exhibited the lowest carbon deposition (17.02 %). Under extreme hydrogen purged at 1223 K, only the 10Ni/CoAl catalyst exhibited a minor activity decline. The superior stability of 10Ni/NiAl was attributed to an in situ-formed NiAl composite metal oxides during 973 K calcination, which effectively anchored Ni particles, suppressed sintering, and prevented extensive oxidation.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108325"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020277","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}

引用次数: 0

Co-Zn bimetallic oxide & hydroxyfluoride nanowires: highly active catalyst for catalytic transfer hydrogenation of furfural 钴锌双金属氧化物&羟基氟化物纳米线：用于糠醛催化转移加氢的高活性催化剂

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-19 DOI: 10.1016/j.fuproc.2025.108330

Chenyu Wang , Xiao Tan , Wei Feng , Peijun Ji

{"title":"Co-Zn bimetallic oxide & hydroxyfluoride nanowires: highly active catalyst for catalytic transfer hydrogenation of furfural","authors":"Chenyu Wang , Xiao Tan , Wei Feng , Peijun Ji","doi":"10.1016/j.fuproc.2025.108330","DOIUrl":"10.1016/j.fuproc.2025.108330","url":null,"abstract":"<div><div>Co-Zn bimetallic hydroxyfluoride nanorods (CoZnF) were synthesized at room temperature in an aqueous solution. After calcination at 330 °C in air, CoZnF was partially decomposed to form Co<img>Zn bimetallic oxide & hydroxyfluoride (CoZnO&CoZnF) nanowires. The higher electronegativity of fluorine compared to oxygen reduces the valence electron density of oxygen in CoZnF, thereby weakening the metal‑oxygen bonds, and generating abundant oxygen vacancy sites in CoZnO&CoZnF. Electron transfer between cobalt and zinc maintains cobalt in the Co(II) oxidation state. Catalytic results demonstrate the potential of CoZnO&CoZnF for selective hydrogenation of furfural to furfuryl alcohol (FA). Lewis acid-base pairs (Co<sup>2+</sup>/Zn<sup>2+</sup>-O<sup>2−</sup>) and oxygen vacancy sites act as active sites for catalytic transfer hydrogenation (CTH). The nanowire structure and highly accessible active sites enhance catalytic activity. CoZnO&CoZnF exhibits an excellent catalytic activity, achieving 98.1 % yield of furfuryl alcohol (FA) with a selectivity of 99.2 %. Mechanistic insights from <sup>1</sup>HNMR analysis and kinetic studies elucidate the reaction pathway, including activation energy determination.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108330"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106199","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}

引用次数: 0

Ex-ante life-cycle assessment of biomass-derived hydrogen via fast pyrolysis and sorption enhanced steam reforming: Addressing scale-up uncertainties 通过快速热解和吸附强化蒸汽重整的生物质衍生氢的事前生命周期评估：解决规模扩大的不确定性

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-17 DOI: 10.1016/j.fuproc.2025.108334

Pablo Comendador , Nicolás Martínez-Ramón , Martin Olazar , Gartzen Lopez , Diego Iribarren

{"title":"Ex-ante life-cycle assessment of biomass-derived hydrogen via fast pyrolysis and sorption enhanced steam reforming: Addressing scale-up uncertainties","authors":"Pablo Comendador , Nicolás Martínez-Ramón , Martin Olazar , Gartzen Lopez , Diego Iribarren","doi":"10.1016/j.fuproc.2025.108334","DOIUrl":"10.1016/j.fuproc.2025.108334","url":null,"abstract":"<div><div>Biomass conversion through pyrolysis and sorption enhanced steam reforming (PY-SESR) is a novel alternative for producing hydrogen at bench scale. This study focused on addressing uncertainties linked to its industrial-scale implementation, comparing it to the process without CO<sub>2</sub> capture (PY-SR), and using steam methane reforming (SMR) as benchmark, which is currently the main hydrogen production route. Both PY-SESR and PY-SR scaled-up processes were simulated in Aspen Plus®, based on experimental bench-scale data. Life-cycle assessment based on process simulation-derived inventories showed that the PY-SESR alternative was the only one resulting in renewable hydrogen production according to the European Renewable Energy Directive (RED III) (3 kg<sub>CO₂-eq</sub> kg<sup>−1</sup><sub>H₂</sub> threshold), attaining net negative emissions (−1.12 kg<sub>CO₂-eq</sub> kg<sup>−1</sup><sub>H₂</sub>). Nevertheless, its higher energy consumption, mainly driven by sorbent calcination and CO<sub>2</sub> pressurization for storage, led to higher environmental burdens with respect to other indicators. Considering fossil resource use, ozone depletion and freshwater eutrophication, PY-SR was found to outperform both PY-SESR and SMR, while SMR performed better in acidification and use of minerals and metals. Monte Carlo simulations and a sensitivity analysis showed that heat demand and electricity consumption highly contributed to PY-SR and PY-SESR variability, as a consequence of the limitations associated to early-stage process scale-up.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108334"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106196","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}

引用次数: 0

Exploration on physicochemical properties and combustion behaviors of hydrochar from co-hydrothermal carbonization of swine manure and tea waste 猪粪与茶渣共水热炭化烃类的理化性质及燃烧行为探讨

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-27 DOI: 10.1016/j.fuproc.2025.108345

Ke Huang , Xin Zhang , Xiaozhen Li , Renxin Liu , Ke Wu

{"title":"Exploration on physicochemical properties and combustion behaviors of hydrochar from co-hydrothermal carbonization of swine manure and tea waste","authors":"Ke Huang , Xin Zhang , Xiaozhen Li , Renxin Liu , Ke Wu","doi":"10.1016/j.fuproc.2025.108345","DOIUrl":"10.1016/j.fuproc.2025.108345","url":null,"abstract":"<div><div>Co-hydrothermal carbonization (co-HTC) of animal manure and lignocellulosic biomass is recognized as an innovative approach to improve the quality of hydrochar derived from the HTC of animal manure. This study explored the effects of mass mixing ratio and temperature on the physicochemical properties and combustion behaviors of hydrochar from co-HTC of swine manure (SM) and tea waste (TW). The synergistic effect between SM and TW promoted the deoxygenation of SM and the aromatization of hydrochar. Compared to hydrochar from HTC of SM, the carbon content and higher heating value increased considerably, reaching the maximum of 48.64 % and 19.94 MJ/kg, respectively. Less lamellar structure and numerous microspheres were observed on the surface of hydrochar produced at 250 °C with 1/1 mass ratio. Additionally, the combustion performance of hydrochars from co-HTC were improved, as indicated by increases in the comprehensive combustion index and combustion stability index. Kinetic analysis showed that the activation energy of hydrochar increased with the increasing TW proportion and temperature. These findings provided valuable insights into the co-HTC of SM and TW, supporting the effective upgrading of animal manure and lignocellulosic biomass.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108345"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155933","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}

引用次数: 0

Upcycling of EVA resin from photovoltaics into supercapacitor material and combustible gas by autogenic pressure pyrolysis 利用自生压力热解法将光伏EVA树脂升级为超级电容器材料和可燃气体

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-26 DOI: 10.1016/j.fuproc.2025.108344

Yadi Jia , Pinjing He , Fan Lü , Wei Peng , Hua Zhang , Khamphe Phoungthong

{"title":"Upcycling of EVA resin from photovoltaics into supercapacitor material and combustible gas by autogenic pressure pyrolysis","authors":"Yadi Jia , Pinjing He , Fan Lü , Wei Peng , Hua Zhang , Khamphe Phoungthong","doi":"10.1016/j.fuproc.2025.108344","DOIUrl":"10.1016/j.fuproc.2025.108344","url":null,"abstract":"<div><div>In response to the growing challenge of photovoltaic waste management, developing sustainable and value-added treatment strategies is imperative. In this study, ethylene-vinyl acetate (EVA) resins sourced from waste photovoltaic modules and virgin materials were utilized for the production of hierarchical porous carbon (HPC) and methane-rich combustible gas via autogenic pressure pyrolysis coupled with KOH activation. Temperature-dependent pyrolysis revealed that 700 °C was the optimal condition, yielding pyrolysis gas with a high methane content (43.39 vol%) and producing graphitized carbon spheres. Subsequent KOH activation generated HPC with a large specific surface area of 765.4 m<sup>2</sup>/g. When applied as a supercapacitor electrode in 6 mol/L KOH electrolyte, the HPC exhibited a high specific capacitance of 152 F/g at 0.2 A/g. Additionally, EVA resins with higher vinyl acetate content and melt index (MI) produced greater amounts of methane and pyrolytic carbon, while the resins with lower MI values showed enhanced reactivity toward chemical activation. This work offers a green and efficient route for the high-value recycling of EVA in PV waste and contributes to the sustainable synthesis of advanced HPC materials for energy storage applications.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108344"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145155935","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}

引用次数: 0

Experimental investigation and machine learning-based estimation of oxyhydrogen (HHO) gas production using KOH electrolyte in a flat plate electrolyser 平板电解槽中KOH电解液产氢氧（HHO）气的实验研究及基于机器学习的估计

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-20 DOI: 10.1016/j.fuproc.2025.108339

Mohammad Amin Adoul , Balaji Subramanian , Naveen Venkatesh Sridharan , Ramin Karim , Ravdeep Kour

{"title":"Experimental investigation and machine learning-based estimation of oxyhydrogen (HHO) gas production using KOH electrolyte in a flat plate electrolyser","authors":"Mohammad Amin Adoul , Balaji Subramanian , Naveen Venkatesh Sridharan , Ramin Karim , Ravdeep Kour","doi":"10.1016/j.fuproc.2025.108339","DOIUrl":"10.1016/j.fuproc.2025.108339","url":null,"abstract":"<div><div>Hydrogen gas has gained significant attention as a cleaner alternative to fossil fuels offering a sustainable energy solution. This study explores the production efficiency of oxyhydrogen (HHO) gas using a flat plate electrolyser with potassium hydroxide (KOH) as the electrolyte. Machine learning regression models were employed to estimate hydrogen generation rates and system efficiency based on key operational parameters that includes voltage, current and electrolyte concentration. A set of gradient-boosting algorithms was evaluated utilizing raw experimental data to predict (i) hydrogen output in liters per minute (LPM) and (ii) system efficiency. The results indicate that Categorical Boosting (CatBoost) excelled in forecasting system efficiency (R<sup>2</sup> = 0.9748, RMSE = 1.6567 on testing data) and predicting HHO gas generation rate (R<sup>2</sup> = 0.9936, RMSE = 0.0090). The experimental results show that with the increase in KOH concentration there is increase in production of Hydrogen. Maximum efficiency was noted with 0.5 N of KOH with the peak efficiency of 99.8 % because of its optimal conductivity and power consumption. It can also be absorbed that higher concentration such 0.75 N and 1 N have shown significant improvement in hydrogen production. Experimental findings further revealed that moderate operating conditions maximize hydrogen production with efficiency varying as a function of applied current and electrolyte concentration. This study highlights the advantages of integrating machine learning models with electrolysis-based hydrogen production offering a scalable and data-driven approach to optimizing energy efficiency. The results underscore the potential of KOH-based electrolysis for sustainable hydrogen generation and reinforce the role of predictive modeling in enhancing system performance.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108339"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106656","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}

引用次数: 0

Influence of chain length and saturation on carboxylic acid pyrolysis mechanisms 链长和饱和度对羧酸热解机理的影响

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-16 DOI: 10.1016/j.fuproc.2025.108336

Bernardo A. Souto, Justice Asomaning, David C. Bressler

{"title":"Influence of chain length and saturation on carboxylic acid pyrolysis mechanisms","authors":"Bernardo A. Souto, Justice Asomaning, David C. Bressler","doi":"10.1016/j.fuproc.2025.108336","DOIUrl":"10.1016/j.fuproc.2025.108336","url":null,"abstract":"<div><div>This study investigates radical-driven deoxygenation mechanisms during the non-catalytic pyrolysis of saturated and unsaturated carboxylic acids. Pyrolysis experiments were conducted at 410 °C, between 0.5 and 2 h, using carboxylic acids of varying carbon chain lengths (C6 to C18) and saturation levels, along with ketones. Feedstock conversion and deoxygenation products were quantified using GC–MS/FID for liquids and GC-TCD/FID for gases. Results demonstrated that carboxylic acid chain length significantly influences pyrolysis behavior, with significant differences in deoxygenation pathway linked to acid chain length and saturation level. Decarboxylation was the predominant pathway for short-chain carboxylic acids, whereas long-chain acids showed increased tendency towards decarbonylation. Short-chain saturated carboxylic acids favoured ketonic decarboxylation during the initial stages of pyrolysis, resulting in notable amounts of ketones and carbon dioxide. Subsequent decarbonylation of these ketones contributed to further deoxygenation, generating hydrocarbons and shorter-chain ketones via radical-driven mechanisms. In contrast unsaturated carboxylic acids underwent extensive cracking, which suppressed ketonic decarboxylation and led to reduced overall hydrocarbon yields. Additionally, mixed carboxylic acid feedstocks showed decreased conversion efficiencies, primarily due to limited intermolecular interactions necessary for effective ketonic decarboxylation. This work explores radical-driven, non-catalytic pyrolysis of fatty acids, providing a detailed mechanistic understanding of how chain length and saturation influence reaction pathway. The findings highlight key determinants of product selectivity and deoxygenation efficiency, providing valuable insights for optimizing feedstock compositions in pyrolysis-based sustainable biofuel production.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108336"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106191","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}

引用次数: 0

Reaction characteristics of La/Co doped Mg-Fe-Al-O spinel oxygen carriers for chemical looping steam methane reforming La/Co掺杂Mg-Fe-Al-O尖晶石氧载体化学环蒸汽甲烷重整反应特性

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-05 DOI: 10.1016/j.fuproc.2025.108322

Shiyi Chen , Fangjun Wang , Jun Du , Shubo Chen , Wenguo Xiang

{"title":"Reaction characteristics of La/Co doped Mg-Fe-Al-O spinel oxygen carriers for chemical looping steam methane reforming","authors":"Shiyi Chen , Fangjun Wang , Jun Du , Shubo Chen , Wenguo Xiang","doi":"10.1016/j.fuproc.2025.108322","DOIUrl":"10.1016/j.fuproc.2025.108322","url":null,"abstract":"<div><div>Chemical looping steam methane reforming (CLSMR) is an efficient and promising method to co-produce syngas and hydrogen. In this work, the La/Co doped Mg-Fe-Al-O spinel was synthesized via co-precipitation method as oxygen carrier in CLSMR. The introduction of La ions enhances the dispersion of the iron oxide on the particle surface and retards the growth of the oxygen carrier grain size, and the incorporation Co ions creates oxygen vacancies, which facilitates the lattice oxygen migration. The results reveal the optimal ratios of La: Co is 5:5 in the doping. In the reduction, the La5Co5 sample generates the syngas with a H<sub>2</sub>/CO molar ratio of ∼2, a CH<sub>4</sub> conversion rate of 85.1 %, and a syngas yield of 3.75 mmol/g<sub>oc</sub>. In the oxidation, H<sub>2</sub> is produced with a yield of 1.25 mmol/g<sub>oc</sub> and a concentration > 95 vol%. In SEM and XRD characterization analysis, the La5Co5 oxygen carrier after multiple reaction cycles exhibits minimal sintering, with stable phases and slight changes in grain size. The La<img>Co synergistic effect can also enhance the methane partial oxidation. The deep-reduced oxygen carrier owns sufficient oxygen vacancies as active sites for steam splitting to produce high concentration hydrogen.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108322"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144997659","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}

引用次数: 0

Production of CO2-free hydrogen via catalytic methane decomposition over Ce-promoted Ni/Al2O3 catalysts ce促进的Ni/Al2O3催化剂催化甲烷分解制无co2氢

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-16 DOI: 10.1016/j.fuproc.2025.108338

Byung Sun Yoon , Ki Cheol Kim , Min-Jae Kim , Jae-Rang Youn , Mincheol Kim , Taesung Jung , Sang Goo Jeon , Woohyun Kim , Chang Hyun Ko

{"title":"Production of CO2-free hydrogen via catalytic methane decomposition over Ce-promoted Ni/Al2O3 catalysts","authors":"Byung Sun Yoon , Ki Cheol Kim , Min-Jae Kim , Jae-Rang Youn , Mincheol Kim , Taesung Jung , Sang Goo Jeon , Woohyun Kim , Chang Hyun Ko","doi":"10.1016/j.fuproc.2025.108338","DOIUrl":"10.1016/j.fuproc.2025.108338","url":null,"abstract":"<div><div>Catalytic methane decomposition (CMD) is a promising reaction for CO<sub>2</sub>-free hydrogen production, as it generates no CO<sub>2</sub> emissions and produces solid carbon byproducts. However, catalyst deactivation due to carbon accumulation necessitates the development of catalysts with high activity, stability, and high capacity for carbon products. In this study, Ce-promoted Ni/Al<sub>2</sub>O<sub>3</sub> catalysts were synthesized with varying Ce loadings to investigate the role of Ce in enhancing catalyst performance. The addition of Ce was found to weaken the interaction between Ni and Al<sub>2</sub>O<sub>3</sub>, thereby increasing the surface concentration of metallic Ni<sup>0</sup> and improving catalytic activity. Nevertheless, excessive Ce loading resulted in performance deterioration, primarily due to a significant reduction in mesoporous volume. This loss of physical space limited the growth of carbon products and hindered catalyst effectiveness. The results highlight the need to balance the promotional effects of Ce with the preservation of pore structure to optimize catalyst design for CMD.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"278 ","pages":"Article 108338"},"PeriodicalIF":7.7,"publicationDate":"2025-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096570","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}

引用次数: 0

Corrigendum to ‘Profiling the trapped and deactivating species on HZSM-5 zeolite during 1-butene oligomerization’ [Fuel Processing Technology 277 (2025) 108297] “1-丁烯齐聚过程中HZSM-5沸石上捕获和失活物质的分析”[燃料加工技术277(2025)108297]的勘误表

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2025-11-15 Epub Date: 2025-09-17 DOI: 10.1016/j.fuproc.2025.108333

Sepideh Izaddoust , Idoia Hita , Timo Kekäläinen , José Valecillos , Janne Jänis , Pedro Castaño , Eva Epelde

引用次数: 0