Fuel Processing Technology最新文献

Simulation and experimental research on uniform heating of roller-hearth furnace with oxygen-enriched pulse combustion

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-29 DOI: 10.1016/j.fuproc.2025.108213

Pengjin Chen , Meng Sui , Shuang Wang , Fashe Li

{"title":"Simulation and experimental research on uniform heating of roller-hearth furnace with oxygen-enriched pulse combustion","authors":"Pengjin Chen , Meng Sui , Shuang Wang , Fashe Li","doi":"10.1016/j.fuproc.2025.108213","DOIUrl":"10.1016/j.fuproc.2025.108213","url":null,"abstract":"<div><div>In order to achieve sustainable development of the ceramic industry, it is necessary to ensure the quality of product firing under the premise of energy saving and consumption reduction. This study presents the development of an oxygen-enriched pulse combustion test system for roller kilns, designed to regulate the flow of fuel and combustion gas at varying oxygen concentrations (21 %, 24 %, 27 %, and 30 %) using a continuous wave function. The pulse combustion tests, which involved multiple variations in amplitude and period, were complemented by simulations of the flow and temperature fields within the kiln using Ansys Fluent. The results demonstrated that the highest energy savings were achieved at an oxygen concentration of 30 %, with reductions of approximately 52 % and 36 % in energy consumption during the warming and constant temperature phases, respectively. Under conditions of low amplitude and long period (<em>A</em> = 30, <em>T</em> = 135), the temperature uniformity of the JFCC thermos block within the furnace was improved by 55 %. The pulsed combustion process was found to extend the diffusion period of the return vortex, thereby increasing the strength of the vortex ring and enhancing the churning capability of the kiln airflow. Oxygen-enriched pulse combustion facilitated the distribution of heat from localized high-temperature zones throughout the furnace by increasing the period and decreasing the amplitude, thereby reducing temperature stratification. This study effectively addresses the issue of uneven temperature distribution caused by oxygen-enriched combustion in roller kilns.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108213"},"PeriodicalIF":7.2,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143725497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intensified methanol steam reforming over active and stable CeO2-Al2O3 supported catalysts

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-26 DOI: 10.1016/j.fuproc.2025.108212

Concetta Ruocco, Eugenio Meloni, Olga Muccioli, Vincenzo Palma

{"title":"Intensified methanol steam reforming over active and stable CeO2-Al2O3 supported catalysts","authors":"Concetta Ruocco, Eugenio Meloni, Olga Muccioli, Vincenzo Palma","doi":"10.1016/j.fuproc.2025.108212","DOIUrl":"10.1016/j.fuproc.2025.108212","url":null,"abstract":"<div><div>The recent limitations imposed by the maritime rule-making units have goaded the researcher's interest towards methanol applications as near-zero emission fuel. Methanol can be either directly fed to internal combustion engineering or sent to a pre-reforming unit for hydrogen generation and further conversion in fuel cells devices. In this scenario, the optimization of the reforming unit is crucial to achieve high hydrogen yields.</div><div>This study investigates the activity, selectivity and stability of different CeO<sub>2</sub>-Al<sub>2</sub>O<sub>3</sub> supported catalysts for methanol steam reforming. Moreover, the kinetic parameters of the best performing catalyst were determined. Several mono-, bi- and trimetallic catalysts were prepared by the wet impregnation method (Ni, Cu, Ni<img>Cu, Cu<img>Ni, Zn-Ni-Cu, Pt<img>Ni, Pd<img>Ni, Pt<img>Zn, Pd<img>Zn, Pd<img>Cu) and were preliminarily screened between 200 and 600 °C under a S/C ratio of 1.5 and WHSV = 2 h<sup>−1</sup>. Looking at methanol conversion and products selectivity, the lowest CO formation was recorded over the Cu-based catalysts: the addition of 2 wt% of palladium considerably improved both CH<sub>3</sub>OH conversion and hydrogen yield. The Pd<img>Cu formulation, rarely investigated in the recent literature, appeared very promising and was also subjected to 40 h of time-on-stream test at 300 °C, observing only a 5 % reduction in terms of both conversion and H<sub>2</sub> yield, which were attested to 95 and 88 %, respectively, at the end of the test. Moreover, a very low coke selectivity (1.5 wt%) was recorded, with relevant deactivation resistance. Finally, based on a simplified power-law kinetic model, the activation energies for methanol steam reforming (22 kJ·mol<sup>−1</sup>), methanol decomposition (71 kJ·mol<sup>−1</sup>) and water gas shift reaction (84 kJ·mol<sup>−1</sup>) were also developed, which further demonstrated the high activity of the developed catalyst towards MSR.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108212"},"PeriodicalIF":7.2,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143706279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biomass conversion for sustainable hydrogen generation: A comprehensive review

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-24 DOI: 10.1016/j.fuproc.2025.108210

Sherif Ishola Mustapha , Ifeanyi Michael Smarte Anekwe , Stephen Okiemute Akpasi , Kabiru Bab Muritala , Emmanuel Kweinor Tetteh , Atuman Samaila Joel , Yusuf Makarfi Isa

{"title":"Biomass conversion for sustainable hydrogen generation: A comprehensive review","authors":"Sherif Ishola Mustapha , Ifeanyi Michael Smarte Anekwe , Stephen Okiemute Akpasi , Kabiru Bab Muritala , Emmanuel Kweinor Tetteh , Atuman Samaila Joel , Yusuf Makarfi Isa","doi":"10.1016/j.fuproc.2025.108210","DOIUrl":"10.1016/j.fuproc.2025.108210","url":null,"abstract":"<div><div>Hydrogen is emerging as a promising and environmentally friendly fuel for the twenty-first century, primarily owing to its eco-friendly nature. The production of hydrogen from renewable biomass sources offers numerous advantages compared to traditional fossil fuel-based methods. Various techniques are currently employed to efficiently and cost-effectively convert biomass into hydrogen. This review provides an up-to-date overview of the advancements in various biomass-to‑hydrogen production processes. Additionally, several developmental efforts offer a concise overview of the different technologies utilized in these processes. Furthermore, it conducts a comparative analysis of the existing methods, evaluating their strengths and weaknesses. Moreover, it sheds light on the techno-economic aspects of biomass-to‑hydrogen production processes, underlining the practical considerations associated with these technologies. In summary, this work serves as a comprehensive resource, addressing the evolving landscape of hydrogen production from biomass, exploring innovative developments, and providing a thoughtful assessment of the various techniques while considering economic factors.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108210"},"PeriodicalIF":7.2,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coupled Fenton oxidation and photocatalytic pretreatment: A novel strategy for reducing AAEMs in biomass to enhance coal co-combustion performance

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-20 DOI: 10.1016/j.fuproc.2025.108211

Zhuwei Liu , Lin Li , Tingsan Song , Rui Wang , Mingxin Li , Yusheng Wang , Dani Zuo , Dongmei Bi

{"title":"Coupled Fenton oxidation and photocatalytic pretreatment: A novel strategy for reducing AAEMs in biomass to enhance coal co-combustion performance","authors":"Zhuwei Liu , Lin Li , Tingsan Song , Rui Wang , Mingxin Li , Yusheng Wang , Dani Zuo , Dongmei Bi","doi":"10.1016/j.fuproc.2025.108211","DOIUrl":"10.1016/j.fuproc.2025.108211","url":null,"abstract":"<div><div>The high content of alkali and alkaline earth metals (AAEMs) in biomass fuels exacerbates slagging and corrosion during co-combustion with coal, thereby limiting industrial utilization. To address these challenges, this study proposes a green pretreatment combining Fenton and photocatalytic processes. Walnut shells (WS) were treated with g-C<sub>3</sub>N<sub>4</sub>-loaded calcium alginate microbeads under simultaneous simulated daylight irradiation and Fenton oxidation. Thermogravimetric analysis was employed to investigate the combustion characteristics of coal blended with pretreated and untreated WS. Results demonstrated a 170 % enhancement in the combustion performance index (<em>S</em>) at a heating rate of 20 °C/min. X-ray fluorescence (XRF) analysis revealed that the pretreatment reduced AAEMs content by 53.5 %, specifically decreasing K₂O and Na₂O concentrations in ash from 5.21 % to 0.87 %. Slagging indices analysis further confirmed mitigated fouling risks, showing a low slagging index of 0.158 and a fouling index of 0.129. Kinetic analysis using model-free methods indicated a 12.8 % increase in activation energy (<em>E</em> = 149.94 kJ/mol for pretreated walnut shells-coal blends compared to 132.91 kJ/mol for untreated blends), indicating a suppression of the catalytic effects of AAEMs on coal degradation. This work establishes a sustainable strategy for optimizing biomass-coal co-combustion systems with improved environmental compatibility and industrial applicability.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108211"},"PeriodicalIF":7.2,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance improvement and emissions reduction of methanol fuelled marine dual-fuel engine with variable compression ratio

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-19 DOI: 10.1016/j.fuproc.2025.108208

Panagiotis Karvounis, Gerasimos Theotokatos

{"title":"Performance improvement and emissions reduction of methanol fuelled marine dual-fuel engine with variable compression ratio","authors":"Panagiotis Karvounis, Gerasimos Theotokatos","doi":"10.1016/j.fuproc.2025.108208","DOIUrl":"10.1016/j.fuproc.2025.108208","url":null,"abstract":"<div><div>Methanol use in marine engines is associated with challenges pertaining to misfiring and knocking. This study aims at parametrically optimising a marine dual-fuel four stroke engine considering variable compression ratio (VCR) settings and methanol direct injection with 90 % energy fraction. CFD models are developed and validated against experimental data. Parametric runs are employed in 20, 55 and 90 % load, with compression ratio ranging 11–19, to reveal the optimal CR values for each load considering the engine performance and emissions parameters along with constraints on combustion efficiency and stability. The sustainability index is employed to assess the environmental sustainability of the engine under optimal VCR settings compared to FCR. The results reveal that the engine thermal efficiency for CR 19, 16 and 12 at low, medium and high loads respectively increases by 7 %, 2 % at low and medium loads, whereas, decreases by 4 % at the high load. The engine with the proposed VCR settings achieves the compliance with the IMO Tier III limits and increases its sustainability index by 21 % compared to the fixed compression ratio. This study provides insights for the effective use of high methanol energy fractions in marine dual engines, thus contributing to the shipping sector sustainability.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108208"},"PeriodicalIF":7.2,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A kinetic investigation of conversion of nuclear graphite by hydrogen and water vapor at absolute pressure variation up to 40 bar

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-18 DOI: 10.1016/j.fuproc.2025.108194

Sergei Shalnev , Steffen Krzack , Felix Küster , Hans-Jürgen Friedrich , Bernd Meyer , Martin Gräbner

{"title":"A kinetic investigation of conversion of nuclear graphite by hydrogen and water vapor at absolute pressure variation up to 40 bar","authors":"Sergei Shalnev , Steffen Krzack , Felix Küster , Hans-Jürgen Friedrich , Bernd Meyer , Martin Gräbner","doi":"10.1016/j.fuproc.2025.108194","DOIUrl":"10.1016/j.fuproc.2025.108194","url":null,"abstract":"<div><div>This study investigates the thermochemical conversion of release-measured nuclear-grade graphite recovered from the thermal column of a decommissioned nuclear reactor in the context of the disposal of this nuclear waste. The focus is on determining kinetic data for graphite conversion to the gas phase and the influence of absolute pressure on kinetic parameters using TGA. During gasification with H<sub>2</sub> and for all tested pressures (1, 5, 20 and 40 bar) an activation energy of approx. 268 kJ/mol was determined for the kinetically-controlled regime (Regime I), and approx. 134 kJ/mol for the pore diffusion-controlled regime (Regime II). For hydrogasification of synthetic graphite (reference material), Regime I with an E<sub>A</sub> of approx. 140 kJ/mol and Regime III (mass transfer-controlled) with an E<sub>A</sub> of approx. 9 kJ/mol were observed. Due to the absence of any internal surface area, synthetic graphite showed no Regime II, rather Regime I passed directly into Regime III. An increase of pressure in order to accelerate the conversion was only successful up to a certain point. Further increasing the pressure even led to a lower reaction rate can even be observed. For the gasification of nuclear graphite with water vapor, Regime I was found for 1, 5, 20 and 40 bar. The activation energy was approx. 214 kJ/mol.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108194"},"PeriodicalIF":7.2,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Coupling dry reforming of methane with in-situ catalytic cracking of coal pyrolysis tar over xNi@HZSM-5

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-18 DOI: 10.1016/j.fuproc.2025.108209

Mingyi Wang , Jiayue Tian , Xiangyang Guo , Song Yang , Junwen Wang , Jiaofei Wang

{"title":"Coupling dry reforming of methane with in-situ catalytic cracking of coal pyrolysis tar over xNi@HZSM-5","authors":"Mingyi Wang , Jiayue Tian , Xiangyang Guo , Song Yang , Junwen Wang , Jiaofei Wang","doi":"10.1016/j.fuproc.2025.108209","DOIUrl":"10.1016/j.fuproc.2025.108209","url":null,"abstract":"<div><div>An in-situ upgrading process of gaseous tar based on catalytic cracking of coal pyrolysis tar combining with dry reforming of methane (DRM) over <em>x</em>Ni@HZSM-5 was proposed. The results show that light tar content over 2Ni@HZSM-5 is 80 wt% at 600 °C, and light tar yield raises from 6.0 wt% to 8.1 wt%. Compared with the Ni-based catalyst prepared by impregnation, 2Ni@HZSM-5 can separate active sites of DRM and tar cracking via the confinement effect of zeolite, so that CH<sub>4</sub> conversion activity and tar cracking activity are individually regulated, and excessive cracking of tar by Ni can be avoided. Highly dispersed Ni particles in HZSM-5 pores promote the conversion of CH<sub>4</sub>, and the stabilization effect of hydrogen-rich free radicals on tar cracking fragments is strengthened. After the catalytic upgrading process over 2Ni@HZSM-5, the average molecular weight of tar drops down to 223 amu. Through isotope tracing experiments, it was confirmed that the active centers of tar cracking and CH<sub>4</sub> activation during the upgrading process are acid sites of HZSM-5 and Ni respectively. Aromatic hydrocarbons with 3 and 4 rings are converted by 2Ni@HZSM-5, and the cracking fragments are combined with ·H and ·CH<sub>x</sub> to form monocyclic and bicyclic aromatic hydrocarbons.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108209"},"PeriodicalIF":7.2,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ammonia as fuel for marine dual-fuel technology: A comprehensive review

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-14 DOI: 10.1016/j.fuproc.2025.108205

Phan Anh Duong , Hokeun Kang

{"title":"Ammonia as fuel for marine dual-fuel technology: A comprehensive review","authors":"Phan Anh Duong , Hokeun Kang","doi":"10.1016/j.fuproc.2025.108205","DOIUrl":"10.1016/j.fuproc.2025.108205","url":null,"abstract":"<div><div>Decarbonizing maritime transportation is a key objective for the future green shipping industry, with ammonia emerging as a promising candidate among hydrogen carriers and alternative fuels for CO<sub>2</sub>-free energy systems. Its benefits include high volumetric hydrogen density, low storage pressure, high storage temperature than other alternative fuels, and long-term stability. This comprehensive review analyzes over 300 studies, researches and experiments from 2001 to 2024, evaluating the potential of ammonia supply systems for dual-fuel engines in both current and future maritime applications. The study explores the viability of using ammonia in dual-fuel marine diesel engines, combining it with diesel, hydrogen, biodiesel, LNG, LPG, or other fuels to achieve significant reductions in carbon emissions, supported by ammonia's low auto-ignition temperature. Maintaining the ammonia energy ratio below 60 % helps to lower the flame temperature, which in turn reduces NOx emissions. However, increasing the ammonia energy proportion also leads to higher N₂O emissions, which counterbalances the benefits of lower CO₂ emissions. Optimizing diesel injection timing helps to reduce N₂O and NH₃ emissions. Despite its potential, ammonia dual-fuel combustion still presents challenges, particularly concerning NOx emissions and high levels of unburned ammonia due to the fuel's nitrogen content. These issues necessitate the implementation of effective aftertreatment systems. Consequently, ammonia is currently regarded as a feasible option primarily for marine applications, power generation, and potentially cargo vessels, where space limitations are less restrictive. Furthermore, addressing critical factors such as safety, combustion efficiency, and technological advancements is essential before ammonia can be considered a complete replacement for conventional marine fuels.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108205"},"PeriodicalIF":7.2,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermo-economic feasibility of heliostat and parabolic trough collector integration with optimized configuration of post-combustion carbon capture for steam methane reforming

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-13 DOI: 10.1016/j.fuproc.2025.108207

Farzin Hosseinifard , GolamReza Aghdami , Mohsen Salimi , Majid Amidpour

{"title":"Thermo-economic feasibility of heliostat and parabolic trough collector integration with optimized configuration of post-combustion carbon capture for steam methane reforming","authors":"Farzin Hosseinifard , GolamReza Aghdami , Mohsen Salimi , Majid Amidpour","doi":"10.1016/j.fuproc.2025.108207","DOIUrl":"10.1016/j.fuproc.2025.108207","url":null,"abstract":"<div><div>Integrating carbon capture units in hydrogen production plants using steam methane reforming (SMR) can significantly reduce emissions but requires high energy inputs. This study investigates using solar thermal energy to power post-combustion carbon capture (PCC) systems in Tehran, Iran. Simulations in Aspen HYSYS 11 evaluate configurations to optimize CO₂ capture from SMR flue gases, focusing on minimizing reboiler energy demands. The optimal PCC model requires 71.5 MW of thermal energy, supplied by solar power plants simulated in Thermoflex. Parabolic trough collectors (PTC) and solar towers are assessed, requiring 0.87 km<sup>2</sup> and 1.91 km<sup>2</sup>, respectively, for construction. Seasonal and daily performance analysis in SAM software reveals that the PTC system, with a solar multiple (SM) of 3.5, achieves an 80 % capacity factor (CF) and a levelized cost of heat (LCOH) of 5.60. The solar tower system, with an SM of 3, achieves a 90 % CF and an LCOH of 7.08. Exergoeconomic analysis indicates exergoeconomic factors of 24.51 % for the PTC system and 31.45 % for the solar tower. These findings demonstrate the potential of solar-assisted PCC systems to enhance sustainability in SMR-based hydrogen production.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"271 ","pages":"Article 108207"},"PeriodicalIF":7.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced ammonia decomposition using a Pd-Ag membrane reactor for high-purity hydrogen production

IF 7.2 2区工程技术

Fuel Processing Technology Pub Date : 2025-03-13 DOI: 10.1016/j.fuproc.2025.108203

Erasmo Salvatore Napolitano , Cristina Italiano , Adele Brunetti , Minju Thomas , Antonio Vita , Giuseppe Barbieri

{"title":"Enhanced ammonia decomposition using a Pd-Ag membrane reactor for high-purity hydrogen production","authors":"Erasmo Salvatore Napolitano , Cristina Italiano , Adele Brunetti , Minju Thomas , Antonio Vita , Giuseppe Barbieri","doi":"10.1016/j.fuproc.2025.108203","DOIUrl":"10.1016/j.fuproc.2025.108203","url":null,"abstract":"<div><div>In this study, a Pd-Ag membrane reactor (MR) integrated with a lab-synthesized ruthenium catalyst supported on La<sub>2</sub>Ce<sub>2</sub>O<sub>7</sub> was used for the efficient production and recovery of highly-pure hydrogen from ammonia decomposition. The catalyst was synthesized using solution combustion techniques, and its structure–activity relationship was thoroughly investigated through a range of advanced characterization methods, including N<sub>2</sub> physisorption, X-ray diffraction (XRD), hydrogen temperature-programmed reduction (H<sub>2</sub>-TPR), and transmission electron microscopy (TEM).</div><div>The performance of the membrane reactor was evaluated by varying the feed pressure and flow rate, using either single ammonia or a simulated outlet stream from a conventional reactor with ammonia conversions ranging from 20 % to 50 %. This configuration was designed to assess the MR ability to mitigate or prevent hydrogen back-permeation, as well as optimize membrane performance. The MR achieved ammonia conversions of up to 85 %, surpassing the thermodynamic limits typical of traditional reactors (TR). Hydrogen recovery rates reached 97 %, with purity consistently exceeding 90 %. Notably, the MR demonstrated up to 3.6 times higher ammonia conversion compared to conventional TR, highlighting its significant advantages for ammonia decomposition applications.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"272 ","pages":"Article 108203"},"PeriodicalIF":7.2,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0