Fuel最新文献

{"title":"Research advances in gasification process modelling for syngas production from microalgal biomass","authors":"Zhongliang Sun ,&nbsp;Shuonan Cao ,&nbsp;Adamu Yunusa Ugya ,&nbsp;Spiros N. Agathos ,&nbsp;Liqin Sun ,&nbsp;Jian Li","doi":"10.1016/j.fuel.2026.138543","DOIUrl":"10.1016/j.fuel.2026.138543","url":null,"abstract":"<div><div>Microalgal gasification is an emerging technology that supports low-carbon energy transition by converting microalgal biomass into syngas, a versatile source of renewable energy and chemical feedstocks, while mitigating greenhouse gas emissions. This review examines recent literature on modelling strategies for optimising microalgal gasification to improve process performance and sustainability. We highlight how microalgal characteristics (e.g., lipid/protein/carbohydrate fractions, moisture and ash contents, and heteroatoms) influence syngas composition, tar/char formation, and emission precursors, and how reactor design and operating conditions (temperature, pressure, steam/oxygen ratio and residence time) govern conversion efficiency. Thermodynamic, kinetic and computational fluid dynamics (CFD) models are discussed and compared in terms of predictive scope, data requirements and scale applicability, providing complementary insights from equilibrium limits to rate- and transport-controlled behaviour. Process simulation platforms (e.g., Aspen-based flowsheeting, CFD solvers and kinetic toolboxes) are summarised for parameter screening, reactor optimisation and scale-up. Key barriers include feedstock variability, energy-intensive dewatering/drying, limited microalgae-specific kinetic/thermochemical datasets and scarce pilot-scale validation. Future directions are proposed toward harmonized databases, integrated multi-model workflows coupled with techno-economic and life-cycle indicators, and data-driven surrogates for robust design and control. Overall, this review emphasizes that the strategic application of modelling and simulation tools is vital to advance the sustainability and commercial feasibility of microalgal gasification technologies.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138543"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deterministic model for predicting total sediment accelerated of residual marine fuel VLSFO and ULSFO","authors":"Kirill A. Kuzmin,&nbsp;Renat R. Gabdulkhakov,&nbsp;Radel R. Sultanbekov,&nbsp;Viacheslav A. Rudko","doi":"10.1016/j.fuel.2026.138523","DOIUrl":"10.1016/j.fuel.2026.138523","url":null,"abstract":"<div><div>The stability of residual marine fuel, as measured by the TSA parameter according to ISO<!--> <!-->8127:2024, is a key parameter requiring control during the development of blending recipes at oil refineries and bunkering stations. This requirement is driven by the introduction of sulfur content limitations for VLSFO and ULSFO grades, set at 0.5 and 0.1 wt%, respectively. An important practical task is the development of a model for predicting the TSA of new residual marine fuel recipes. Approaches to solving this problem, proposed by us previously, involve calculating the solid–liquid equilibrium using the Schroeder-Le Chatelier equation, taking into account the activity coefficient from the UNIFAC group contribution model. In this work, we extend the capabilities of the developed model for predicting the sediment stability of multicomponent hydrocarbon systems containing several sources of asphaltenes of diverse origins. This includes accounting for the influence of the structural-group composition of the components and the direct measurement of the thermodynamic parameters of asphaltenes. As a result, a deterministic model has been obtained, allowing for the highly accurate prediction of the TSA of residual marine fuel, with a coefficient of determination of 0.9825. The model is applicable for determining TSA in the range from 0.05 to 0.6 wt%, as verified on 15 recipes of real fuel compositions.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138523"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermophysical properties of Tetraoxymethylene dimethyl ether H3CO(CH2O)4CH3 in a wide range of temperatures and pressures","authors":"Javid Safarov ,&nbsp;Svetlana Crusius ,&nbsp;Martin Müller ,&nbsp;Dzmitry Zaitsau ,&nbsp;Karsten Müller","doi":"10.1016/j.fuel.2026.138418","DOIUrl":"10.1016/j.fuel.2026.138418","url":null,"abstract":"<div><div>Polyoxymethylene dimethyl ethers H₃CO(CH₂O)<em>_n</em>CH₃, <em>n</em> ≥ 2 (also known as Oxymethylendimethylether; OMDME or OME_x) are a potential substitutes for diesel fuels. However, the respective technology development requires detailed data on their thermophysical properties. In this work, the heat capacities, viscosities, densities, speeds of sound and surface tensions of OME₄ are reported. These data of OME₄ were investigated over a wide range of temperatures <em>T</em> = (263.15 to 468.26) K and pressures <em>p</em> = (0.101 to 200) MPa. The experimental density measurements at <em>p</em> = (0.101–140) MPa were performed on vibration tube densimeters with an estimated experimental relative combined average percentage deviation (APD) of Δ<em>ρ</em>/<em>ρ</em> = ±(0.01–0.03)<!--> <!-->%. The constant pressure specific heat capacity <em>c_p</em>(<em>p</em>₀<em>,T</em>)/J·kg⁻¹·K⁻¹ at ambient pressure and temperatures <em>T</em> = (268.761 to 381.116) was determined using differential scanning calorimetry (DSC) with Δ<em>T</em> = (5–10) K temperature interval and an uncertainty of Δ<em>c</em>/<em>c_p</em> = ±0.1 %. Dynamic viscosity <em>η</em>(<em>p</em>₀<em>,T</em>)/mPa·s values of OME₄ at ambient pressure <em>p</em> = 0.101 MPa and temperatures <em>T =</em> (273.15<!--> <!-->to<!--> <!-->471.15)<!--> <!-->K were measured using two different rheometers with an uncertainty of Δ<em>η</em>/<em>η =</em> ±0.35 % and Δ<em>η</em>/<em>η =</em> ±1 %, respectively. The speed of sound <em>u</em>(<em>p</em>₀<em>,T</em>)/m·s⁻¹ values for OME₄ at ambient pressure and temperatures <em>T =</em> (278.149 to 343.155)<!--> <!-->K were studied using a vibration tube densimeter and sound velocitymeter with intervals of Δ<em>T =</em> (5–10)<!--> <!-->K and an uncertainty of Δ<em>u =</em> ±0.1 m·s⁻¹. The surface tension <em>σ</em>(<em>p</em>₀<em>,T</em>)/mN⋅m⁻¹ values of OME₄ at ambient pressure <em>p</em> = 0.1 MPa and temperatures <em>T =</em> (288.55<!--> <!-->to<!--> <!-->345.45)<!--> <!-->K were measured using the Du Noüy ring method. An empirical correlation for the property data of OME₄ has been developed as a function of pressure and temperature. These data allow researchers from process development to engine research to perform efficient development and to tailor potential alternative OME fuels to actual demands.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138418"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of preheated Diesel-Waste cooking oil blend on performance and fuel consumption in 4-Stroke diesel engines using response Surface Methodology","authors":"Bayu Aji Saputro ,&nbsp;Naila Khoirina ,&nbsp;Rusdan Aditya Aji Nugroho ,&nbsp;Richard Richard ,&nbsp;Wei-Cheng Wang ,&nbsp;Adi Surjosatyo","doi":"10.1016/j.fuel.2026.138536","DOIUrl":"10.1016/j.fuel.2026.138536","url":null,"abstract":"<div><div>The utilization of waste cooking oil (WCO) as a sustainable alternative fuel has gained attention due to its economic and environmental benefits. However, its high viscosity affects combustion efficiency, necessitating optimization techniques such as fuel blending and preheating. This study investigated the effect of preheating WCO-diesel blends on engine performance and fuel consumption using Response Surface Methodology (RSM). A four-stroke diesel engine was tested with different fuel mixtures (D100, B25, B50) and preheating temperatures (50°C, 60°C, 70°C, and 80°C). The results indicated that preheating improved fuel atomization and combustion efficiency, particularly for biodiesel blends. The optimal conditions, determined using RSM, were found at 2779.57 RPM and 1.07°C preheating temperature with D100 fuel, yielding maximum power (4489.51 kW), torque (1612 Nm), and minimum brake-specific fuel consumption (BSFC) of 117.995 g/kWh. The experimental validation confirmed the model’s accuracy, with an error margin below 2%. These findings highlight the effectiveness of preheating in enhancing engine performance and fuel efficiency, contributing to the feasibility of WCO utilization in diesel engines.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138536"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical and experimental study on the soot formation in methane multi-jet flames under microgravity","authors":"Wen-Jiao Wang ,&nbsp;Kai-Ru Jin ,&nbsp;Zhi-Hao Zheng ,&nbsp;Hong-Qing Shi ,&nbsp;Du Wang ,&nbsp;Ling-Nan Wu ,&nbsp;Ya-Wen Liu ,&nbsp;Longfei Li ,&nbsp;Jiayu Sun ,&nbsp;Yu Cheng Liu ,&nbsp;Zhen-Yu Tian","doi":"10.1016/j.fuel.2026.138484","DOIUrl":"10.1016/j.fuel.2026.138484","url":null,"abstract":"<div><div>This study systematically investigates the effects of multi-jet interaction and gravity on soot formation in methane/air multi-jet diffusion flames through both experimental and numerical approaches. The particle and microcrystalline size, as well as the deposition morphology of soot, of different heights and gravities were detected by Field Emission Scanning Electron Microscopy (FESEM) and High-Resolution Transmission Electron Microscopy (HRTEM). The experimental results showed that both jet interaction and buoyancy effects significantly affect the soot nanostructure. Many large luminous spots named soot ‘meteor’ appeared in methane diffusion flames under microgravity. This phenomenon results from the combined effects of jets interaction and gravity variation. The period fluctuation of the flame tip with a frequency of 12 Hz was observed at normal gravity, but disappeared under microgravity conditions. Reduced gravity enhanced soot formation, with soot particles under microgravity reaching sizes approximately three times larger than those under normal gravity. Moreover, soot generated under microgravity exhibited a higher degree of graphitization, characterized by longer fringe lengths, smaller fringe tortuosity, and a higher C/H ratio. The soot generated from the side tube exhibited a higher degree of maturity compared to that of the center tube under both normal and microgravity conditions. Furthermore, A 3D laminar flame model was built to analyze the soot formation. The simulation results manifested that the soot-related reaction rates of side tubes were higher than those in the center tube, indicating that the combustion performance of the side tubes played more important roles in soot formation and combustion efficiency.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138484"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Harnessing biofilm polysaccharide as an endogenous green anti-foulant for suppressing asphaltene deposition and spreading on metal surface","authors":"Zhendong Liao ,&nbsp;Wenying Li ,&nbsp;Jingchun Feng ,&nbsp;Si Zhang ,&nbsp;Guozhong Wu","doi":"10.1016/j.fuel.2026.138365","DOIUrl":"10.1016/j.fuel.2026.138365","url":null,"abstract":"<div><div>Asphaltene deposition and microbiologically induced corrosion are two major flow assurance challenges in oil pipelines. Although these phenomena often co-occur, they have traditionally been studied separately, leaving their potential interactions unclear. This study combined interfacial tension measurement, spreading experiments and molecular dynamics simulations to investigate how alginate, a model biofilm polysaccharide associated with microbiological corrosion, affected the interfacial behavior and deposition dynamics of asphaltenes on carbon steel surface. Results showed that alginates significantly reduced the asphaltene-water interfacial tension by modifying surface chemistry and providing steric stabilization. Alginates also suppressed asphaltene spreading kinetics across all concentrations tested, with a maximum reduction in spreading speed of 61%. Above 2 g L⁻¹, alginates further switched from promoting to inhibiting the final spreading extent. The inhibition effects stemmed from a surface-traction-induced pivoted deposition pathway: alginate and asphaltenes formed amphiphilic heteroaggregates in the bulk, which weakened asphaltene-metal adhesion and strengthened alginate-asphaltene binding, thereby hindering deposition and spreading. The interfacial parameters and mechanistic insights obtained in this study provided a foundation for developing more predictive asphaltene deposition models particularly under microbiological corrosion conditions. It highlighted the important potential of utilizing biofilm polysaccharide as an endogenous green anti-foulant for suppressing asphaltene deposition and spreading in flow assurance strategies.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138365"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 oxides formation mechanisms and control strategies in ammonia high-pressure direct injection combustion of marine low-speed engines","authors":"Jie Wu,&nbsp;Long Liu,&nbsp;Yang Wang,&nbsp;Yue Wu","doi":"10.1016/j.fuel.2026.138522","DOIUrl":"10.1016/j.fuel.2026.138522","url":null,"abstract":"<div><div>Ammonia is a promising carbon-free fuel for marine transportation, yet the understanding of nitrogen oxides formation and consumption mechanisms remains limited, particularly under high-pressure direct injection of marine low-speed engines. This study provides a mechanistic characterization of NOx and N₂O formation in a novel ammonia–diesel stratified injection combustion mode, innovatively integrating detailed chemical-kinetic analysis, ¹⁵N isotopic labeling, and three-dimensional reaction-path visualization based on computational fluid dynamics (CFD). The ¹⁵N labeling approach effectively distinguishes the origins of nitrogen oxides, showing that more than 90% of NO and N₂O emissions are derived from fuel nitrogen. Reaction pathway analysis during combustion indicates that NO formation occurs mainly via radical oxidation and third-body collision, with key reactions including NH₂ + NO₂ = H₂NO + NO, HNO + O₂ = HO₂ + NO, NO + H (+M) = HNO (+M), and NO + OH (+M) = HONO (+M). NO is primarily consumed through DeNOx and oxidation processes involving radicals such as NH₂, NH, and HO₂. N₂O is formed mainly through the conversion of NO/NO₂ by reactions such as NH + NO = N₂O + H and NH₂ + NO₂ = N₂O + H₂O, while its consumption is dominated by N₂O + H = N₂ + OH and the thermal decomposition pathway N₂O (+M) = N₂ + O (+M). Guided by these mechanistic insights and based on the fuel-rich combustion concept that enables ultra-low NOx emission, an innovative post-injection strategy is proposed. By appropriately matching the post-injected ammonia energy and injection timing, this strategy achieves a 16.8% reduction in total NOx compared with the non-post-injection baseline, directly meeting IMO Tier III requirements, while providing a better N₂O trade-off compared with exhaust gas recirculation (EGR) and maintaining N₂O emissions and indicated thermal efficiency at 0.056 g/kW·h and 48%, respectively.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138522"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amorphous high-entropy Co3B-HEA: Enhanced NaBH4 hydrolysis catalysis via multi-element synergy","authors":"Huaxia Zhou ,&nbsp;Chenxi Shang ,&nbsp;Tayirjan Taylor Isimjan ,&nbsp;Xiulin Yang","doi":"10.1016/j.fuel.2026.138521","DOIUrl":"10.1016/j.fuel.2026.138521","url":null,"abstract":"<div><div>High-entropy materials, with their multi-element synergistic effects, offer abundant active sites, holding great promise for designing efficient catalysts for sodium borohydride (NaBH₄) hydrolysis. Herein, we for the first time synthesize a metal-rich amorphous high-entropy compound Co₃B‒HEA via a hydrothermal-chemical reduction method, constructing a novel “high-entropy matrix-boride” composite catalytic system. Experimental results demonstrate that Co₃B‒HEA achieves a maximum hydrogen generation rate (HGR) of 8539.2 mL min⁻¹ g_cat⁻¹ at 25 °C. Systematic characterizations reveal three key structural innovations: uniformly distributed multi-metallic active sites, a unique amorphous structure, and strong electronic interactions between Co₃B and the HEA matrix. Kinetic studies demonstrate zero-order reaction behavior with respect to NaBH₄ concentration and a low activation energy (47.24 kJ mol⁻¹), indicating enhanced reaction efficiency. Based on the Michaelis–Menten model, we propose a novel multi-element synergistic activation mechanism: Ru, Co, Fe, Ni, and Mo collectively activate <span><math><msubsup><mrow><mi>B</mi><mi>H</mi></mrow><mrow><mn>4</mn></mrow><mo>-</mo></msubsup></math></span> and H₂O molecules, fundamentally boosting the NaBH₄ hydrolysis rate. Moreover, hydrogen generated from NaBH₄ hydrolysis by the Co₃B‒HEA catalyst was used directly to drive a custom H₂-air fuel cell, successfully lighting up small light bulbs and demonstrating its potential for practical applications. This work offers a novel strategy for designing high-performance catalysts for hydrogen production and their practical energy utilization.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138521"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental and kinetic modeling study of the autoignition delay times of triethyl phosphite","authors":"Frederick Nii Ofei Bruce ,&nbsp;Yuke Gao ,&nbsp;Ruining He ,&nbsp;Zhihan Zhu ,&nbsp;Xin Wang ,&nbsp;Yilin Zhao ,&nbsp;Mengmeng Jia ,&nbsp;Jiaxin Xie ,&nbsp;Xin Bai ,&nbsp;Yun Hin Taufiq-Yap ,&nbsp;Chong-wen Zhou ,&nbsp;Henry Curran ,&nbsp;Yang Li","doi":"10.1016/j.fuel.2026.138507","DOIUrl":"10.1016/j.fuel.2026.138507","url":null,"abstract":"<div><div>Organophosphorus compounds (OPCs) are effective flame inhibitors due to their gas-phase radical-scavenging chemistry. However, the autoignition behavior of triethyl phosphite (TEPI, P(OC₂H₅)₃), a trivalent organophosphorus compound, has not previously been characterized. This work presents the first experimental and kinetic modeling study of TEPI autoignition, addressing a key gap in the combustion chemistry of organophosphorus compounds. Ignition delay times (IDTs) of TEPI/air mixtures were measured behind reflected shock waves in a high-pressure shock tube at temperatures of 1000–1600 K, pressures of 5–10 bar, and equivalence ratios of φ = 0.1 and 0.5. A detailed TEPI oxidation mechanism was developed using high-level quantum chemistry, canonical transition-state theory with tunneling corrections, and RRKM/master-equation analysis, yielding over 40 TEPI-specific reactions that were integrated into a validated C₀–C₃ hydrocarbon/phosphorus base mechanism. The measured IDTs exhibit Arrhenius-type temperature dependence, strong pressure sensitivity, and longer ignition delays under leaner conditions. At 10 bar and φ = 0.5, TEPI ignites within 0.1 to 1 ms (1100–1500 K), approximately an order of magnitude faster than at 5 bar and φ = 0.1. The kinetic model reproduces the experimental IDTs within a factor of two across all conditions and identifies PO-containing intermediates (PO, HOPO, HOPO₂) as key contributors to TEPI oxidation and inhibition of ignition. These results provide the first validated ignition dataset and chemical kinetic framework for TEPI, offering mechanistic insight into trialkyl phosphite combustion and establishing a foundation for extending trivalent phosphorus chemistry to future flame-inhibition and fire-suppression studies, where extinction and flame-speed measurements will be required.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138507"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of crystal facet-controlled structured PtLa catalyst in enhancing room-temperature start-up performance for methanol combustion","authors":"Binji Li,&nbsp;Qingli Shu,&nbsp;Qi Zhang","doi":"10.1016/j.fuel.2026.138519","DOIUrl":"10.1016/j.fuel.2026.138519","url":null,"abstract":"<div><div>Using the same fuel as that employed in methanol reforming for hydrogen production to generate heat via combustion is currently one of the mainstream solutions to address the high power consumption issue associated with traditional electric heating in hydrogen production reactors. The key factors determining the practical application of methanol combustion heating lie in its ability to start at low temperatures and provide stable heat under high space velocity conditions, rendering catalyst design particularly critical. Conventional Pt-based particulate catalysts for methanol combustion suffer from high costs due to the high loading of active metals, and their durability is often inadequate because the water produced tends to accumulate on the surface of the particulate catalysts. In this study, a monolithic mesh-type PtLa/γ-Al₂O₃/Al catalyst with a low Pt loading of only 0.28 wt% was proposed for the first time. This novel structure significantly enhances catalytic activity and durability, achieving over 80 % methanol conversion over 170 h of operation. Additionally, the catalyst can attain a methanol conversion rate of 93.5 % at room temperature. A combination of various characterization techniques and DFT calculations was utilized to investigate its reaction mechanism and the effect of La doping in depth. Owing to its low cost, excellent durability, and ease of replacement, this catalyst is well-suited for heating reactions in distributed methanol-to-hydrogen systems.</div></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":"416 ","pages":"Article 138519"},"PeriodicalIF":7.5,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146076173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}