Fuel Processing Technology最新文献_第4页

Research progress on biodiesel production utilizing waste oils and biomass-derived catalysts 利用废油和生物质衍生催化剂生产生物柴油的研究进展

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.fuproc.2025.108389

Yuan Xie, Jianbo Zhao, Hui Wang, Shengtan Wang, Yan Zhang, Ruida Li

{"title":"Research progress on biodiesel production utilizing waste oils and biomass-derived catalysts","authors":"Yuan Xie, Jianbo Zhao, Hui Wang, Shengtan Wang, Yan Zhang, Ruida Li","doi":"10.1016/j.fuproc.2025.108389","DOIUrl":"10.1016/j.fuproc.2025.108389","url":null,"abstract":"<div><div>Against the backdrop of global energy transition and sustainable development, biodiesel has emerged as a promising renewable and clean energy source, with technological innovation and optimization in its production attracting significant attention. The utilization of non-edible oils (e.g., waste oils) as feedstocks and biomass-derived catalysts for large-scale biodiesel production represents an effective approach to reducing production costs while addressing food safety and environmental concerns. This review systematically examines recent advancements in two critical areas: the application of second-generation non-edible oils, particularly waste cooking oils, as biodiesel feedstocks, and the development of catalysts derived from renewable resources and mineral carriers. The proposed strategy of integrating novel catalysts with waste oil feedstocks not only achieves efficient resource utilization of waste materials and cost reduction but also mitigates environmental burdens. Future research should focus on in-depth investigation of the structure-activity relationships of biomass-derived catalysts to optimize their performance, as well as the deep integration of catalyst design with biomass waste utilization. These efforts will be pivotal in advancing the sustainable development of the biodiesel industry.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108389"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921279","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

Chemical looping combustion of waste-derived fuel at 150 kW pilot-scale: Fuel conversion behavior and CO2 capture 150kw中试规模废弃物燃料的化学循环燃烧：燃料转换行为和二氧化碳捕获

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.fuproc.2025.108379

Philipp Mohn , Inge Saanum , Øyvind Langørgen , Roger Khalil , Jochen Ströhle , Bernd Epple

{"title":"Chemical looping combustion of waste-derived fuel at 150 kW pilot-scale: Fuel conversion behavior and CO2 capture","authors":"Philipp Mohn , Inge Saanum , Øyvind Langørgen , Roger Khalil , Jochen Ströhle , Bernd Epple","doi":"10.1016/j.fuproc.2025.108379","DOIUrl":"10.1016/j.fuproc.2025.108379","url":null,"abstract":"<div><div>To reduce emissions from waste management, chemical looping combustion can be applied to waste-to-energy processes for carbon capture. This study presents experimental results testing chemical looping combustion of waste-derived fuel at pilot-scale (150 kW<sub>th</sub>) using ilmenite as oxygen carrier. For comparison, tests with biomass were conducted under similar conditions. Six operating periods were analyzed focusing on hydrodynamics, gas-phase composition including heavier hydrocarbons such as benzene, carbon distribution, and energy recovery. Additionally, the performance indicators oxygen demand and carbon capture efficiency are determined. The results demonstrate the technical feasibility of chemical looping combustion with waste as fuel. Stable operation was achieved in all cases, including a modified configuration for simplified scale-up without a secondary circulation pathway coupling the bottom of both reactors. While reactor hydrodynamics remained consistent, disabling the bottom-loop led to lower temperatures and significantly reduced fuel conversion. Compared to biomass, waste yielded less residual carbon monoxide and hydrogen and higher concentrations of heavier hydrocarbons like ethylene and benzene in the fuel reactor off-gas, particularly at lower temperatures. Carbon slip was similar for both fuels with capture efficiencies ranging from 92 % to 96 %. Oxygen demands were determined above 30 % with slightly lower values observed for waste compared to biomass. Up to 60 % of the fuel chemical energy remained in combustible off-gas species, indicating substantial incomplete conversion but also potential for gasification-oriented applications. This highlights the need for further optimization of reactor design, oxygen carrier materials, and operating conditions before large-scale deployment in future waste management systems.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108379"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921276","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

Feasibility of plasma-assisted CO2 conversion of biomass with enhanced conversion and efficiency in a rotating gliding arc-spouted bed system 等离子体辅助生物质CO2转化的可行性，在旋转滑动弧喷床系统中提高转化和效率

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2025-12-12 DOI: 10.1016/j.fuproc.2025.108383

Hyoungjoon Kwon , Seunguk Jung , Soonho Song

{"title":"Feasibility of plasma-assisted CO2 conversion of biomass with enhanced conversion and efficiency in a rotating gliding arc-spouted bed system","authors":"Hyoungjoon Kwon , Seunguk Jung , Soonho Song","doi":"10.1016/j.fuproc.2025.108383","DOIUrl":"10.1016/j.fuproc.2025.108383","url":null,"abstract":"<div><div>This study investigates the enhancement of CO<sub>2</sub> reforming efficiency in biomass through the use of a rotating gliding arc (RGA) plasma system. This study investigates how the synergistic effects of biomass and catalytic metals influence CO<sub>2</sub> reforming to enhance CO<sub>2</sub> conversion and energy efficiency. The addition of biomass suppressed recombination reactions by consuming reactive oxygen species, leading to increased CO<sub>2</sub> conversion. The CO<sub>2</sub> conversion increased from 6.8 % (CO<sub>2</sub>-Only) to 8.5 % (CO<sub>2</sub>-Biomass) and further to 10.3 % (CO<sub>2</sub>-Biomass-Catalyst) at an input power of 1200 W. Energy efficiency reached 33 % in the CO<sub>2</sub>-BMC (biomass loaded with alkali or alkaline earth metal catalysts) experiment; a 3.3-fold increase compared to 10 % in the CO<sub>2</sub>-Only experiment. Additionally, the CO<sub>2</sub> consumption rate increased from 0.40 mmol/s to 0.66 mmol/s, representing a 64.1 % increase, while the CO production rate rose from 0.83 mmol/s to 1.23 mmol/s. These results confirm that plasma-catalyst synergy can enhance CO<sub>2</sub> reforming efficiency, providing a sustainable approach to both energy production and CO<sub>2</sub> utilization.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108383"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145735553","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

Directional upgrading of biomass pyrolysis oil to bio-phenol via copper valence state regulation in CuxOy@Fe3O4–1.0 catalyst 在CuxOy@Fe3O4 -1.0催化剂中铜价态调控生物质热解油定向升级为生物酚

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2025-12-18 DOI: 10.1016/j.fuproc.2025.108385

Lijuan Zhu , Can Zhu , Biyun Yu , Minghui Fan , Quanxin Li

{"title":"Directional upgrading of biomass pyrolysis oil to bio-phenol via copper valence state regulation in CuxOy@Fe3O4–1.0 catalyst","authors":"Lijuan Zhu , Can Zhu , Biyun Yu , Minghui Fan , Quanxin Li","doi":"10.1016/j.fuproc.2025.108385","DOIUrl":"10.1016/j.fuproc.2025.108385","url":null,"abstract":"<div><div>The directed synthesis of bio-based phenol using renewable bio-oil resources has important scientific significance and potential application value in promoting the efficient utilization of renewable biomass resources and the development of high-value bio-based chemicals. This work reveals the selective synthesis of bio-based phenol by regulating the valence state of copper through the reduction of copper-based magnetic catalysts. This new controllable conversion process is achieved through the coupling of selective catalytic pyrolysis of bio-oil to prepare benzene intermediates and subsequent catalytic hydroxylation process. A comprehensive investigation was conducted on the catalytic performance, material characteristics, effects of reaction parameters, as well as the stability and reusability of the catalysts. The combination of zinc oxide modified zeolite catalyst and reduced magnetic catalyst significantly improved the yield of phenol in the catalytic conversion of bio-oil. Under optimized reaction conditions (70 °C, 3 h), the Cu<sub>x</sub>O<sub>y</sub>@Fe<sub>3</sub>O<sub>4</sub>–1.0 catalyst achieved the highest phenol selectivity(91.8 %) and yield(35.9 %). Meanwhile, the catalyst exhibits excellent magnetic separation and recovery performance during the catalytic hydroxylation process.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108385"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145788246","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

Selective hydrocracking of polystyrene waste over Pt- and Ru-supported zeolite catalysts into high yield LPG and ethylbenzene 聚苯乙烯废料在Pt和ru负载的沸石催化剂上选择性加氢裂化制备高产LPG和乙苯

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2025-12-09 DOI: 10.1016/j.fuproc.2025.108364

Olajumoke Alabi-Babalola , Edidiong Asuquo , Hassan Alhassawi , Mujtba Alnasser , Amal Nadri , Sarayute Chansai , Carmine D'Agostino , Arthur Garforth

{"title":"Selective hydrocracking of polystyrene waste over Pt- and Ru-supported zeolite catalysts into high yield LPG and ethylbenzene","authors":"Olajumoke Alabi-Babalola , Edidiong Asuquo , Hassan Alhassawi , Mujtba Alnasser , Amal Nadri , Sarayute Chansai , Carmine D'Agostino , Arthur Garforth","doi":"10.1016/j.fuproc.2025.108364","DOIUrl":"10.1016/j.fuproc.2025.108364","url":null,"abstract":"<div><div>This work investigates the chemical upcycling of non-biodegradable polystyrene waste into useful industrial products via catalytic hydrocracking. Zeolite-Y and ZSM-5 catalysts were impregnated with platinum and ruthenium and used in the conversion of polystyrene waste into the highly-desirable liquified natural gases and liquid ethylbenzene. Reactions carried out in a Parr reactor gave C<sub>3</sub><span><math><mo>−</mo></math></span>C<sub>4</sub> gas selectivity of 60–67% for Pt-doped and 41–74 % for Ru-doped HY catalyst, while the Pt-doped ZSM-5 gave 94–96% C<sub>2</sub><span><math><mo>−</mo></math></span>C<sub>4</sub> selectivity of the total gas products. Liquid analysis revealed both Pt and Ru were selective towards single-ring aromatics, notably ethylbenzene: 37–44%. However, Pt-ZSM-5 gave negligible liquid products due to its relatively larger pore sizes (3.8 nm) which promotes faster mass transport leading to more cracking and less secondary reactions. Higher pressures significantly increased feedstock to fluid conversion from 37 to 73% at 15 and 25 bar H<sub>2</sub> respectively. Longer reaction times and lower polymer : catalyst ratios enhanced hydrogenation and ring opening reactions to give lower molecular weight compounds <span><math><mo>≤</mo></math></span>C<sub>8</sub> and cycloalkanes. Spent catalysts were reused four times and similar ethylbenzene selectivity obtained, hence indicating excellent catalyst stability. We present a waste management control strategy in the feedstock recycling of plastic waste using bifunctional catalysts to produce fuels, whilst promoting alternative sources to the growing energy demand and environmentally benign synthetic routes in the petrochemical industry.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108364"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145697407","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

Biogenic waste thermochemical valorization: Integration of experimental results and process modelling within the GICO project 生物废物热化学增值：GICO项目中实验结果和过程建模的整合

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.fuproc.2025.108392

Armando Vitale , Emanuele Di Bisceglie , Juan Diego Palacios Aparicio , Giovanni Palma , Umberto Pasqual Laverdura , Alessandro Antonio Papa

{"title":"Biogenic waste thermochemical valorization: Integration of experimental results and process modelling within the GICO project","authors":"Armando Vitale , Emanuele Di Bisceglie , Juan Diego Palacios Aparicio , Giovanni Palma , Umberto Pasqual Laverdura , Alessandro Antonio Papa","doi":"10.1016/j.fuproc.2025.108392","DOIUrl":"10.1016/j.fuproc.2025.108392","url":null,"abstract":"<div><div>This study investigates the GICO (Gasification Integrated with CO₂ Capture and Conversion) concept, an innovative biogenic waste treatment scheme combining hydrothermal carbonization (HTC), sorption-enhanced gasification (SEG), hot gas cleaning (HGC), plasma-assisted CO₂ conversion, methanol synthesis, and solid oxide fuel cell (SOFC). Experimental campaigns were carried out on winery residues as representative wet biomass. HTC produced hydrochar with improved fuel properties (C/O ratio increased to 61 %) that was then processed in SEG tests, yielding hydrogen-rich syngas (75.8 vol%) with a cold gas efficiency (CGE) of 75.5 %. These data were used to calibrate an Aspen Plus model of a pilot-scale plant treating 550 kg/h of wet biomass. The model successfully reproduced experimental results enabling a methanol synthesis of 66 kg/h (CGE 42.4 %). The SOFC subsystem generated 259 kWh of electricity and 215 kWh of recoverable heat, expanding the product distribution. Overall, the process efficiency reached 32.4 % limited by the process energy demand, mainly due to the plasma reactor, highlighting the potential of a reduced-plasma-feed configuration achieving 39.7 % efficiency. Preliminary heat recovery strategies reduced external requirements by 88.5 % and increased the overall efficiency to 38.9 %, and the carbon utilization at 84.5 % highlighting the crucial role of thermal integration in optimizing the GICO process.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108392"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921277","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

Pretreatment of fast pyrolysis bio-oil by slurry hydroprocessing 浆体加氢预处理快速热解生物油

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2025-12-17 DOI: 10.1016/j.fuproc.2025.108384

Niklas Bergvall , Ole Reinsdorf , Olov G.W. Öhrman , Linda Sandström

{"title":"Pretreatment of fast pyrolysis bio-oil by slurry hydroprocessing","authors":"Niklas Bergvall , Ole Reinsdorf , Olov G.W. Öhrman , Linda Sandström","doi":"10.1016/j.fuproc.2025.108384","DOIUrl":"10.1016/j.fuproc.2025.108384","url":null,"abstract":"<div><div>In this work, fast pyrolysis bio-oil (FPBO) has been hydroprocessed in a continuous pilot scale slurry process utilizing unsupported molybdenum sulfide catalyst with the aim of producing a partially upgraded oil product suitable for processing in conventional fixed bed hydrotreaters into final hydrocarbons. Screening of process parameters in the slurry-process revealed that changes in reaction pressure (70–140 bar) had minimal effect on the amount of H<sub>2</sub> consumed, while increases in temperature (350–390 °C) or catalyst loading (0.25–0.5 wt% Mo) resulted in increased H<sub>2</sub>-consumption. A higher level of H<sub>2</sub>-consumption was, in turn, strongly linked to improved properties, but reduced yield, of the oil product. Recirculation of used slurry catalyst back to the process was also demonstrated in continuous operation of the pilot plant for over 60 h and ten reactor passes of the catalyst. Although an initial decrease in the catalytic activity was observed, the catalyst quickly attained a stable and still relatively high performance. The results show that, using the slurry-process, it is possible to obtain a partially upgraded FPBO with significantly improved properties, such as low coke formation tendencies and minimal levels of inorganics.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108384"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145788245","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

Optimising and up-scaling residual grassland biomass use through sequential base-acid conditioning 通过序贯酸碱调节优化和扩大草地剩余生物量利用

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2025-12-12 DOI: 10.1016/j.fuproc.2025.108380

Hafiz Ali Raza , Viktoria Scheff , Matthias Karl von Ahn , David Laner , Kathrin Stenchly , Michael Wachendorf , Korbinian Kaetzl

{"title":"Optimising and up-scaling residual grassland biomass use through sequential base-acid conditioning","authors":"Hafiz Ali Raza , Viktoria Scheff , Matthias Karl von Ahn , David Laner , Kathrin Stenchly , Michael Wachendorf , Korbinian Kaetzl","doi":"10.1016/j.fuproc.2025.108380","DOIUrl":"10.1016/j.fuproc.2025.108380","url":null,"abstract":"<div><div>The conversion of species-rich, structurally complex grassland biomass from landscape management into high-quality solid fuel and biogas poses significant environmental and technological challenges due to its high mineral content and low energy density. This study explores an advanced adaptation of the Integrated Generation of Solid Fuel and Biogas from Biomass (IFBB) process, incorporating a sequential base–acid treatment (IFBB-B/A) with sodium hydroxide and acetic acid, tailored for such feedstocks. Optimised through systematic lab-scale trials, the improved IFBB-B/A process demonstrated superior enrichment of energy-relevant constituents (cellulose +54 %, volatile matter +13 %, carbon +6.4 %) compared to conventional IFBB, enhancing higher heating value (+5.5 %) and significantly reducing ash content (−81 %). Upon scaling to industrial screw-press equipment, IFBB-B/A maintained robust performance, achieving high ash reduction (−71 %), improved thermochemical fuel quality, reduced slagging potential (slagging index reduced from 5.2 to 2.1), and increased sulphur-to‑chlorine ratio (from 1.9 to 13.5), thus minimising corrosion risk. Press fluid from industrial-scale IFBB-B/A yielded over 500 Ln CH₄/kgVS and methane concentrations above 85 vol%, underscoring the process's capability for efficient production of high-quality biogas and solid fuels from challenging biomass sources. The findings confirm the potential role of species-rich grassland biomass for decentralised provision of renewable energy.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108380"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145735554","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

Fischer–tropsch synthesis in a three-phase slurry reactor: Fe/HAp versus commercial Nanocat® for liquid hydrocarbon production 三相浆状反应器中的费托合成：Fe/HAp与商用Nanocat®用于液态烃生产

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.fuproc.2025.108386

Sabrina B. Karakache, Maxime Lafond, Nicolas Abatzoglou, Inès E. Achouri

{"title":"Fischer–tropsch synthesis in a three-phase slurry reactor: Fe/HAp versus commercial Nanocat® for liquid hydrocarbon production","authors":"Sabrina B. Karakache, Maxime Lafond, Nicolas Abatzoglou, Inès E. Achouri","doi":"10.1016/j.fuproc.2025.108386","DOIUrl":"10.1016/j.fuproc.2025.108386","url":null,"abstract":"<div><div>In this study, hydroxyapatite (HAp) is investigated as a catalyst support for Fischer–Tropsch synthesis (FTS) using iron as the active metal. The reaction is performed in a continuous stirred-tank reactor (CSTR), providing superior temperature control and enhanced gas–solid interactions. The Fe/HAp catalyst is benchmarked against a commercial ferric oxide catalyst (Nanocat®), and the effects of the CO/H<sub>2</sub> feed ratio, temperature, and gas space velocity (SV) on the catalytic performance are evaluated. X-ray diffraction (XRD) analysis reveals strong Fe–HAp interactions, leading to iron phosphide (Fe<sub>2</sub>P) formation, which enhances iron dispersion and mitigates sintering. Scanning transmission electron microscopy with energy-dispersive X-ray spectroscopy (STEM-EDS) confirms a uniform iron distribution with an average particle size of 5 nm. Performance tests show that Fe/HAp maintains stable CO conversion (40 %) at a high SV (12,050 mL·g<sup>−1</sup>·h<sup>−1</sup>, 250 °C), whereas Nanocat® deactivates rapidly, mainly due to severe sintering. Both catalysts exhibit high C<sub>5+</sub> hydrocarbon selectivity (>90 %); Fe/HAp favors gasoline (32 %), while Nanocat® favors diesel (33 %) at 250 °C. Notably, Fe/HAp promotes olefin selectivity (50 %) at 220 °C and an H<sub>2</sub>/CO ratio of 1, whereas increasing the H<sub>2</sub>/CO ratio to 2 enhances oxygenate formation (35 %). These findings highlight HAp as a promising support for modifying Fischer–Tropsch selectivity while ensuring catalyst stability.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108386"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921335","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

μCT based quantification of pellet char morphology: Effects of biomass pelletization and fluidized bed pyrolysis μCT对颗粒形态的定量分析：生物质颗粒化和流化床热解的影响

IF 7.7 2区工程技术

Fuel Processing Technology Pub Date : 2026-03-01 Epub Date: 2026-01-06 DOI: 10.1016/j.fuproc.2025.108377

Abdullah Sadeq , Marian Schmitt , Shen Wang , Sophia Rothberg , Swantje Pietsch-Braune , Laihong Shen , Stefan Heinrich

{"title":"μCT based quantification of pellet char morphology: Effects of biomass pelletization and fluidized bed pyrolysis","authors":"Abdullah Sadeq , Marian Schmitt , Shen Wang , Sophia Rothberg , Swantje Pietsch-Braune , Laihong Shen , Stefan Heinrich","doi":"10.1016/j.fuproc.2025.108377","DOIUrl":"10.1016/j.fuproc.2025.108377","url":null,"abstract":"<div><div>Spruce wood pellets were produced with flat dies of different press-channel diameter-to-length ratios (1:3, 1:4, 1:5) and pyrolyzed at 900 °C for 4 min in a fluidized bed (FLB) and, for comparison, in a control setup (CS) where hot gas flowed around the pellets. The study includes (a) implementing a μCT radial porosity analysis to relate pellet-char structure to mechanical stability across distinct gas–solid contacting modes; (b) developing a μCT-based sand correction to separate entrained quartz from pellet char, reconciling image- and density-derived porosities; and (c) providing μCT evidence of fines enrichment toward the pellet core prior to pyrolysis, consistent with central-cavity formation under FLB conditions. FLB-pyrolysis yielded degraded pellet chars with pine cone-like morphology and large central cavities; μCT-resolved porosity increased by 6–12× relative to the wood pellets, depending on initial density. CS-pyrolysis produced chars that retained cylindrical shape and radial porosity distributions similar to untreated pellets, albeit at higher absolute porosity. The sand-mass correction indicated small fractions that minimally affected partial porosity but biased density-derived values. Across both conditions, extensive carbonization and loss of inter-particle bonding led to strength ranked 1:5 > 1:4 > 1:3, mirroring initial pellet quality.</div></div>","PeriodicalId":326,"journal":{"name":"Fuel Processing Technology","volume":"281 ","pages":"Article 108377"},"PeriodicalIF":7.7,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145921336","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