Fuel Processing Technology最新文献_第7页

Unraveling alkyl-substituted sulfur-containing compound reactivity in hydrodesulfurization via multidimensional mass spectrometry and computational modeling 多维质谱和计算模型揭示烷基取代含硫化合物在加氢脱硫中的反应性

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-11-07 DOI: 10.1016/j.fuproc.2025.108354

Chenglong Dong , Qingqing Xie , Jikun Liu , Haodong Wang , Jinsen Gao , Chunming Xu , Yehua Han

Understanding the structural determinants of sulfur compound reactivity during hydrodesulfurization (HDS) is critical for optimizing catalyst design and deep desulfurization processes. This study integrates ultra-high resolution mass spectrometry (UHRMS), ion mobility spectrometry (IMS), and theoretical calculations to unravel the molecular transformations of alkyl-substituted benzothiophenes (BTs) and dibenzothiophenes (DBTs) in petroleum. UHRMS provided precise molecular formulas, while IMS resolved isomeric diversity, quantified via full width at half maximum (FWHM) analysis. Collision-induced dissociation (CID) differentiated long- and short-chain alkyl substitution patterns, and experimental collision cross-section (CCS) measurements were validated against theoretical calculations to confirm structural identities. Post-HDS analysis revealed reduced molecular diversity in DBTs (DBE = 9), indicating preferential reactivity of dominant isomers, whereas BTs (DBE = 6) exhibited increased isomer diversity and decreased average CCS, suggesting selective retention of compact, multi-short-alkyl-substituted isomers. Theoretical modeling further demonstrated that sulfur compounds with multiple short alkyl chains exhibit lower HDS reactivity, likely due to steric hindrance or thermodynamic stability. These findings highlight the critical role of alkyl substitution patterns in governing sulfur compound reactivity, providing molecular-level insights into structure-activity relationships. The methodology and results advance the rational design of HDS catalysts and process parameters, targeting recalcitrant sulfur species for efficient deep desulfurization in petroleum refining.

了解加氢脱硫（HDS）过程中硫化合物反应性的结构决定因素对于优化催化剂设计和深度脱硫工艺至关重要。本研究结合超高分辨率质谱（UHRMS）、离子迁移谱（IMS）和理论计算，揭示了石油中烷基取代苯并噻吩（BTs）和二苯并噻吩（DBTs）的分子转化。UHRMS提供了精确的分子式，而IMS通过全宽度半最大值（FWHM）分析来解决异构多样性问题。碰撞诱导解离（CID）区分了长链和短链烷基取代模式，实验碰撞截面（CCS）测量结果与理论计算进行了验证，以确认结构身份。后hds分析显示，dbt （DBE = 9）的分子多样性降低，表明优势异构体具有优先反应性，而BTs （DBE = 6）的异构体多样性增加，平均CCS降低，表明紧凑的多短烷基取代异构体选择性保留。理论模型进一步表明，具有多个短烷基链的硫化合物表现出较低的HDS反应活性，可能是由于位阻或热力学稳定性。这些发现强调了烷基取代模式在控制硫化合物反应性中的关键作用，为结构-活性关系提供了分子水平的见解。该方法和结果为石油炼制中以难降解硫为目标的HDS催化剂和工艺参数的合理设计提供了依据。

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引用次数: 0

Flexible off-grid renewable power-to-methanol system: Techno-economic optimization 柔性离网可再生能源制甲醇系统：技术经济优化

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-11-04 DOI: 10.1016/j.fuproc.2025.108351

Yanli Wu , Zhiwei Zhang , Di Zhang , Lixing Zheng , Jianchao Ma

Renewable methanol production a promising pathway for industrial decarbonization, yet off-grid Power-to-Methanol (PTM) deployment is limited by the intermittency of wind and solar resources. With the aim to optimally configure an off-grid PTM system balancing efficiency, cost, and renewable utilization, we propose a flexible off-grid PTM process that integrates H₂O/CO₂ co-electrolysis and CO₂ energy storage, with a focus on the process intensification and flexibility operation. We employ a two-stage optimal dispatch model to determine optimal system capacities and conduct techno-economic assessment. Results show that the optimized system achieves 95.5 % renewable penetration, 62.0 % energy efficiency, a minimum levelized cost of methanol of $902.3/t, and a negative carbon intensity of −0.90 t CO₂ t⁻¹ MeOH. Flexible operation extends annual operating hours of the solid oxide electrolysis cell and methanol synthesis unit to 8730 h and 8345 h, respectively. Sensitivity analysis identifies the solid oxide electrolysis cells as critical cost drivers. This work provides a technical solution for the efficient use of renewable energy in remote regions and presents a conceptual techno-economic design study based on modeling and simulation. These findings demonstrate that process flexibility and energy storage enable economically competitive, carbon-negative methanol production, advancing the role of PTM in industrial decarbonization.

可再生甲醇生产是工业脱碳的一个有前途的途径，但离网发电制甲醇（PTM）的部署受到风能和太阳能资源间歇性的限制。为了优化配置离网PTM系统，平衡效率、成本和可再生能源利用，我们提出了一种结合H₂O/CO₂共电解和CO₂储能的柔性离网PTM工艺，重点关注工艺集约化和灵活性操作。我们采用两阶段最优调度模型来确定最优系统容量并进行技术经济评估。结果表明，优化后的体系可再生能源渗透率为95.5%，能源效率为62.0%，甲醇的最低平准化成本为902.3美元/t，负碳强度为- 0.90 t CO₂t - 1 MeOH。灵活操作将固体氧化物电解池和甲醇合成装置的年运行时间分别延长至8730小时和8345小时。敏感性分析表明固体氧化物电解电池是关键的成本驱动因素。本研究为偏远地区可再生能源的有效利用提供了技术解决方案，并提出了基于建模和仿真的概念性技术经济设计研究。这些发现表明，工艺灵活性和能量存储能够实现具有经济竞争力的碳负甲醇生产，推进PTM在工业脱碳中的作用。

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引用次数: 0

Decarbonised H2 recovery and CO2 capture using a cost-effective membrane plant: A step towards energy transition 使用经济高效的膜装置脱碳H2回收和CO2捕获：迈向能源转型的一步

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-10-29 DOI: 10.1016/j.fuproc.2025.108353

Pasquale Francesco Zito , Jan Veres , Adolfo Iulianelli

Separation of H₂ from CO₂ is crucial in industry, since they are the products of water gas shift reaction. In addition, the demand for pure H₂, as well as the potential reuse of CO₂ as reactant, are increasing as a consequence of the transition from fossil fuels to decarbonization processes.

In this scenario, this work aims to propose a possible solution to get simultaneously pure H₂ and CO₂, meeting the world's requirements in terms of reduction of CO₂ emissions and transition to cleaner energy. A simulated plant combining Pd-based and SAPO-34 membrane modules is able to provide pure H₂, with a final recovery higher than 97%. In addition, the entire CO₂ fed to SAPO-34 unit is recovered in the permeate stream, with a concentration of 97.7%.

A cost analysis shows that feed gas gives a higher contribution than compression, heat exchange and membranes (e.g., 70, 20, 3 and 7% respectively). Net profit and net present value are positive within a specific feed gas price range (e.g., net profit up to 0.10 and 0.155 $/Nm³, depending on the labour cost set), showing that the process can be cost-effective and profitable. H₂ purification cost ranges between 2.6 and 7.8 $/kg.

氢气和二氧化碳的分离在工业上是至关重要的，因为它们是水气转换反应的产物。此外，由于从化石燃料向脱碳过程的过渡，对纯氢气的需求以及二氧化碳作为反应物的潜在再利用正在增加。在这种情况下，本工作旨在提出一种可能的解决方案，同时获得纯H2和CO2，满足世界在减少CO2排放和向清洁能源过渡方面的要求。结合Pd-based和SAPO-34膜组件的模拟装置能够提供纯H2，最终回收率高于97%。此外，注入SAPO-34装置的CO2全部在渗透流中回收，浓度为97.7%。成本分析表明，原料气的贡献高于压缩、热交换和膜（例如，分别为70%、20%、3%和7%）。在特定的原料气价格范围内，净利润和净现值为正（例如，净利润高达0.10和0.155美元/立方英尺，具体取决于劳动力成本设置），表明该工艺具有成本效益和盈利能力。氢气净化成本在2.6 - 7.8美元/公斤之间。

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引用次数: 0

Biodiesel production from sewage sludge catalyzed by polyoxometalate Cs10[H1.8Ge3.2Nb11O39]: Experiments, mechanism and machine learning modeling with radial basis function interpolation based data augmentation 多金属氧酸盐Cs10[H1.8Ge3.2Nb11O39]催化污泥生产生物柴油：基于径向基函数插值的数据增强实验、机理及机器学习建模

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-10-30 DOI: 10.1016/j.fuproc.2025.108356

Luxin Zhang , Lu Wang , Weiwei Shi , Yi Feng , Rong Chen

Abundant lipids-containing sewage sludge are potential inexpensive alternative substrate for biodiesel production. Herein, a novel polyoxometalate, Cs₁₀[H_1.8Ge_3.2Nb₁₁O₃₉], with desirable acid-base bifunctionality, was synthesized. It demonstrated high efficiency in facilitating biodiesel production from sewage sludge, through in-situ esterification/transesterification, resulted in maximum biodiesel yields of 94.4 %. The catalyst exhibited good resistance to free fatty acids and demonstrated high water tolerance, retaining over 60 % yield even at 99 wt% moisture. To predict and optimize biodiesel yield from sewage sludge, this study presents a novel machine learning framework that integrates Radial Basis Function (RBF) interpolation-based data augmentation with Artificial Neural Network (ANN) modeling, achieving a high coefficient of determination (R² = 0.96) and reduced prediction errors. The incorporation of RBF-enhanced data augmentation effectively mitigates model overfitting while improving cost-effectiveness. The influence of each parameter and relative importance of key reaction parameters on biodiesel production was elucidated by SHapley Additive exPlanations and partial dependence analysis. The physicochemical characteristics of the produced biodiesel met the specifications of international standards, indicating its potential to replace diesel fuel. This study not only offers a new approach to advancing sustainable biodiesel production processes with cheap substrates but also provides practical guidance for sewage sludge treatment and upcycling.

丰富的含脂污水污泥是生产生物柴油的潜在廉价替代基质。本文合成了一种具有理想酸碱双官能团的新型多金属氧酸盐Cs10[H1.8Ge3.2Nb11O39]。通过原位酯化/酯交换反应，它在促进污水污泥生产生物柴油方面表现出高效率，生物柴油的产率最高可达94.4%。该催化剂具有良好的抗游离脂肪酸性能和耐水性，即使在99%的水分条件下也能保持60%以上的产率。为了预测和优化污水污泥的生物柴油产量，本研究提出了一种新的机器学习框架，该框架将基于径向基函数（RBF）插值的数据增强与人工神经网络（ANN）建模相结合，实现了高决定系数（R2 = 0.96）并减少了预测误差。结合rbf增强的数据增强有效地缓解了模型过拟合，同时提高了成本效益。通过SHapley加性解释和部分依赖分析，阐明了各参数对生物柴油生产的影响以及关键反应参数的相对重要性。所得生物柴油的理化特性符合国际标准，具有替代柴油的潜力。该研究不仅为推进廉价底物可持续生物柴油生产工艺提供了新途径，而且为污水污泥处理和升级利用提供了实用指导。

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引用次数: 0

Lignocellulosic biomass pyrolysis: A review on the pretreatment and catalysts 木质纤维素生物质热解预处理及催化剂研究进展

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-10-24 DOI: 10.1016/j.fuproc.2025.108352

Xingke Zhang , Yan Zhang , Shuo Zhang , Lihong Yao , Yinan Hao

Facing the dual challenges of fossil energy depletion and environmental pollution, the development of clean energy, particularly carbon-neutral biomass, has gained significant attention. Biomass thermochemical conversion offers an efficient pathway to produce high-value chemicals. This review systematically examines five key aspects: biomass pretreatment, catalytic pyrolysis, catalyst deactivation, machine learning applications, and industrial production. Pretreatment methods improve biomass quality and facilitate subsequent processing. Catalytic pyrolysis, employing catalysts such as alkaline earth metals, acidic sites, zeolites, and rare-earth metals, shows great potential for producing renewable fuels and chemicals. The review compares the performance of various catalysts and discusses their impact on bio-oil yield and quality. Additionally, it summarizes major causes of catalyst deactivation and emerging machine learning approaches for optimizing pyrolysis processes. Current industrial-scale biomass refining installations are also reviewed. Finally, a SWOT analysis is provided to evaluate the challenges and opportunities of biomass pyrolysis, along with future research priorities for industrial scaling.

面对化石能源枯竭和环境污染的双重挑战，清洁能源尤其是碳中性生物质的发展日益受到重视。生物质热化学转化为生产高价值化学品提供了一条有效途径。这篇综述系统地研究了五个关键方面：生物质预处理、催化热解、催化剂失活、机器学习应用和工业生产。预处理方法提高了生物质质量，便于后续处理。采用碱土金属、酸性位点、沸石和稀土金属等催化剂的催化热解在生产可再生燃料和化学品方面显示出巨大的潜力。比较了各种催化剂的性能，讨论了其对生物油收率和质量的影响。此外，它总结了催化剂失活的主要原因和新兴的优化热解过程的机器学习方法。还审查了目前工业规模的生物质精炼装置。最后，通过SWOT分析来评估生物质热解的挑战和机遇，以及未来工业规模的研究重点。

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引用次数: 0

Integrated environmental and techno-economic assessment for membrane-based gas-to-liquid process to green flare gas valorisation 膜基气液制程到绿色火炬气增值的综合环境与技术经济评价

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-11-08 DOI: 10.1016/j.fuproc.2025.108357

Kamran Ghasemzadeh , Mostafa Jafari , Yash Bansod , Vincenzo Spallina , Maria-Chiara Ferrari , Adolfo Iulianelli

This study provides a detailed techno-economic and environmental analysis of the Gas-to-Liquid (GTL) conversion process, comparing an innovative membrane-based design with the traditional GTL process. Both designs were validated through comprehensive simulations, with mass and energy balances aligned with literature data. Due to economic and environmental factors, the membrane-based design was iteratively refined to develop an efficient GTL configuration. Using an integrated environmental-economic algorithm, lifecycle assessment and economic analysis were conducted simultaneously. Results indicate that the total capital investment for the membrane-based design, approximately $1941 million, is 26 % lower than the conventional design, which costs $2616 million. Production costs in the membrane-based design decreased by about 10 %, reaching $1298 per ton compared to $1503 per ton for the conventional design. Additionally, the payback period and internal rate of return improved by 47 % and 86 %, respectively. Environmentally, the membrane-based design reduced the total carbon footprint by 14 % (from 41.20 to 20.83 tons of CO₂ per hour) and water footprint by 13 %. Other environmental impacts include reductions in acidification potential (19.4 %), eutrophication potential (19.6 %), ozone depletion potential (51.3 %), photochemical ozone creation potential (17.4 %), and human toxicity potential (22.3 %). Sensitivity analysis identified a flare gas flow rate of 138 kg per unit performance as the optimal balance between carbon footprint and payback period. This study demonstrates the superiority of the membrane-based design in maximizing the value of flare gas, offering an innovative solution for GTL processes.

本研究对气转液（GTL）转化过程进行了详细的技术经济和环境分析，并将基于膜的创新设计与传统的GTL工艺进行了比较。两种设计都通过综合模拟验证，质量和能量平衡与文献数据一致。由于经济和环境因素，基于膜的设计不断改进，以开发高效的GTL配置。采用综合环境经济算法，将生命周期评价与经济分析同步进行。结果表明，膜基设计的总投资约为4.1亿美元，比传统设计的2.616亿美元低26%。与传统设计的每吨1503美元相比，膜基设计的生产成本降低了约10%，达到每吨1298美元。此外，投资回收期和内部收益率分别提高了47%和86%。在环境方面，基于膜的设计将总碳足迹减少了14%（从每小时41.20吨二氧化碳减少到20.83吨），水足迹减少了13%。其他环境影响包括酸化潜力（19.4%）、富营养化潜力（19.6%）、臭氧消耗潜力（51.3%）、光化学臭氧产生潜力（17.4%）和人类毒性潜力（22.3%）的减少。灵敏度分析发现，每单位性能的火炬气流量为138 kg，是碳足迹和投资回收期之间的最佳平衡。该研究证明了基于膜的设计在最大化火炬气价值方面的优势，为GTL工艺提供了一种创新的解决方案。

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引用次数: 0

Performance evaluation of a novel two-stage waste wood gasifier: Influence of steam-to-biomass ratio and in-situ steam generation on tar formation 新型两级废木材气化炉的性能评价：蒸汽与生物质比和原位蒸汽生成对焦油形成的影响

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-12-01 Epub Date: 2025-11-07 DOI: 10.1016/j.fuproc.2025.108358

M. Kresta , D. Weilguni , J. Keifenheim , J. Krüger , R. Salchner , A. Hofmann , C. Pfeifer

The shift from high-quality woodchips to low-quality feedstocks increasingly shapes biomass gasification. Small- to medium-scale plants face challenges from heterogeneous feedstock and tar formation, with a research gap in producing energetically useable product gas without extensive cleaning. This study investigates gasification of different waste wood fractions in a two-stage process using a novel bubbling fluidised bed reactor without bed material. Two steam generation strategies were applied: steam-saturated air and direct water injection. Combining secondary air with steam-saturated primary air improved temperature control, reduced slagging, and ensured stable thermal stratification across feed rates. While raising the steam-to-biomass ratio did not significantly enhance efficiency, it strongly reduced tar: PAH16 and BTX decreased by up to 85 % and 65 %. Gas composition showed slight increases in H₂ and CH₄, a decrease in CO, and stable values for heating value, gas yield, and conversion efficiency. The product gas exhibited an LHV of 3.7-4.2 MJNm⁻³, gas yields of 1.9-2.8 Nm³kg⁻¹, and cold gas efficiencies of 52.5-57.8 %, comparable to values reported for high-quality woodchips. Total tar concentrations remained low (0.92-2.8 gNm⁻³), demonstrating that autothermal operation with controlled secondary air and steam-saturated primary air provides both efficient energy recovery and effective tar reduction, even for low-quality feedstocks.

从高质量木片到低质量原料的转变日益影响着生物质气化。中小型工厂面临着来自异质原料和焦油形成的挑战，在不进行大量清洗的情况下生产能量可用的产品气体方面存在研究空白。本研究采用一种新型鼓泡流化床反应器，研究了不同废木材馏分在两阶段的气化过程。采用饱和蒸汽和直接注水两种蒸汽发生策略。将二次风与蒸汽饱和的一次风相结合，改善了温度控制，减少了结渣，并确保了整个进料速率的稳定热分层。虽然提高蒸汽与生物质的比例并没有显著提高效率，但它强烈地降低了焦油：PAH16和BTX分别降低了85%和65%。气体组成中H2和CH4略有增加，CO减少，热值、产气量和转化效率趋于稳定。产品气的LHV为3.7-4.2 MJNm - 3，气产率为1.9-2.8 Nm3kg - 1，冷气效率为52.5- 57.8%，与高质量木片的报道值相当。总焦油浓度保持在较低水平（0.92-2.8 gNm−3），表明控制二次空气和蒸汽饱和一次空气的自热操作既能有效地回收能量，又能有效地减少焦油，即使对低质量的原料也是如此。

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引用次数: 0

Valorization of food waste into renewable fuels via anaerobic digestion and inline CO2 reforming over Ni-based catalysts 通过厌氧消化和镍基催化剂上的在线二氧化碳重整，将食物垃圾转化为可再生燃料

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-11-15 Epub Date: 2025-10-10 DOI: 10.1016/j.fuproc.2025.108348

Amer Inayat , Petra Wojnarova , Piotr Jachimowicz , Jacopo De Maron , Elisabetta Orfei , Nicola Schiaroli , Carlo Lucarelli , Kamil Gorecki , Francesco Basile , Pavel Lestinsky , Jiri Rusin

Anaerobic digestion (AD) is a promising technology for converting food waste (FW) or other biodegradable organic waste (BOW) into renewable biogas, while dry reforming of methane (DRM) is an environmentally friendly route for converting greenhouse gases into syngas. Moreover, the use of renewable biogas in dry reforming aligns with the global sustainability goals for reducing reliance on fossil fuels in producing important chemicals. In this regard, the present study deals with the valorization of food waste into renewable hydrogen/syngas by integrating AD and DRM. AD of FW was carried out in a lab-scale anaerobic reactor and the resulting biogas was passed over a sorption bed for H₂S removal. It was shown that iron hydroxide-based materials can effectively remove H₂S, thereby providing a clean biogas feed suitable for catalytic dry reforming. Furthermore, it was demonstrated that the Ni catalyst, doped with a small amount of noble metal and supported on MgAl mixed oxides, exhibits superior catalytic performance in reforming of real or model biogas mixtures. The catalyst showed outstanding stability despite online changes in the reaction parameters. This study may provide new insights toward the development of sustainable processes that simultaneously reduce BOW and CO₂, while also generating valuable products.

厌氧消化（AD）是将食物垃圾（FW）或其他可生物降解的有机废物（BOW）转化为可再生沼气的一种很有前途的技术，而甲烷干重整（DRM）是将温室气体转化为合成气的一种环保途径。此外，在干式重整中使用可再生沼气符合全球可持续发展目标，即在生产重要化学品时减少对化石燃料的依赖。在这方面，本研究通过整合AD和DRM来处理食物垃圾转化为可再生氢/合成气的问题。在实验室规模的厌氧反应器中对FW进行AD处理，所得沼气通过吸附床去除H2S。结果表明，氢氧化铁基材料可以有效地去除H2S，从而提供适合于催化干式重整的清洁沼气原料。此外，还证明了在MgAl混合氧化物上掺杂少量贵金属的Ni催化剂在实际或模型沼气混合物的重整中表现出优异的催化性能。尽管反应参数在线变化，催化剂仍表现出优异的稳定性。这项研究可能为开发可持续的工艺提供新的见解，同时减少BOW和CO2，同时也产生有价值的产品。

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引用次数: 0

3D-printed NiZr0.1/SiOC monolithic catalysts with synergistic Zr doping for enhanced low-temperature CO2 methanation: dual-pathway mechanism and structural stability 增效Zr掺杂的3d打印NiZr0.1/SiOC整体催化剂增强低温CO2甲烷化：双途径机理和结构稳定性

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-11-15 Epub Date: 2025-09-08 DOI: 10.1016/j.fuproc.2025.108328

Honglei Mi , Yifan Zhang , Faliang Luo

Monolithic NiZr_0.1/SiOC catalysts with tailored architectures were fabricated via direct ink writing (DIW) 3D printing for CO₂ methanation. Zr doping markedly enhanced low-temperature activity (<300 °C) by improving Ni dispersion, strengthening metal-support interactions, and suppressing particle agglomeration. Structural characterization revealed that Zr doping optimized pore accessibility and active-site exposure, while in situ studies confirmed a dual-pathway reaction mechanism involving formate and CO intermediates. The 30 % NiZr_0.1/SiOC catalyst exhibited exceptional performance, achieving 95.09 % CO₂ conversion at 320 °C and 91.56 % at 290 °C with 100 % CH₄ selectivity. Long-term stability tests (335 h) demonstrated robust anti-coking and anti-sintering properties, attributed to Zr-induced stabilization of Ni nanoparticles. This work highlights the synergy between additive manufacturing and dopant engineering for designing high-performance catalysts for CO₂ methanation.

采用直接墨水写入（DIW） 3D打印技术制备了具有定制结构的单片NiZr0.1/SiOC催化剂，用于二氧化碳甲烷化。Zr掺杂通过改善Ni分散、加强金属支撑相互作用和抑制颗粒团聚，显著提高了低温活性（<300°C）。结构表征表明，Zr掺杂优化了孔隙可达性和活性位点暴露，而原位研究证实了涉及甲酸酯和CO中间体的双途径反应机制。30% NiZr0.1/SiOC催化剂表现出优异的性能，在320°C和290°C下，CO2转化率分别达到95.09%和91.56%，CH4选择性为100%。长期稳定性测试（335小时）显示出强大的抗焦化和抗烧结性能，这归功于锆诱导的Ni纳米颗粒的稳定。这项工作强调了增材制造和掺杂工程之间的协同作用，以设计高性能的二氧化碳甲烷化催化剂。

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引用次数: 0

Techno-economic assessment of biomass-to-liquid fuel production via chemical looping in comparison to conventional pathways 与传统途径相比，通过化学循环对生物质制液体燃料生产的技术经济评估

IF 7.7 2区工程技术 Q1 CHEMISTRY, APPLIED

Fuel Processing Technology

Pub Date : 2025-11-15 Epub Date: 2025-09-20 DOI: 10.1016/j.fuproc.2025.108341

Krutarth Pandit, Ishani Karki Kudva, Shekhar G. Shinde, Christian Boose, Liang-Shih Fan

Rising liquid fuel demand is increasing CO₂ emissions, making renewable biomass technologies vital for a low-carbon future. This study presents a chemical looping-based biomass conversion process integrated with Fischer-Tropsch synthesis (CLFT) for liquid fuel production and evaluates its techno-economic performance against two established biomass-based pathways: biomass gasification to liquid fuels (GFT) and biomass pyrolysis to liquid fuels (PHP). A minimum fuel selling price (MFSP) analysis, conducted using a discounted cash flow approach, estimates MFSP values of $3.59/GGE for CLFT, $5.26/GGE for GFT, and $4.54/GGE for PHP. The energy efficiencies of CLFT, GFT, and PHP are at 37.7 %, 37.3 %, and 46.4 %, respectively, while their carbon conversion efficiencies are 32.3 %, 30.5 %, and 40.4 %. Sensitivity analyses reveal that feedstock cost exerts the greatest influence on MFSP, followed by the internal rate of return and capital expenditures. Additionally, a 50 % increase in plant capacity (from the baseline 2000 dry tons/day of biomass) results in only an 11 % reduction in MFSP, whereas a 50 % decrease in plant size leads to a 17 % increase in MFSP. These findings highlight CLFT's economic and technical advantages, reinforcing its promise as a cost-effective, sustainable fuel generation alternative.

不断增长的液体燃料需求增加了二氧化碳排放量，使可再生生物质技术对低碳未来至关重要。本研究提出了一种基于化学环的生物质转化过程，结合费托合成（CLFT）用于液体燃料的生产，并针对两种已建立的生物质转化途径：生物质气化制液体燃料（GFT）和生物质热解制液体燃料（PHP），评估了其技术经济性能。使用贴现现金流方法进行的最低燃料销售价格（MFSP）分析估计，CLFT的MFSP值为3.59美元/GGE， GFT为5.26美元/GGE， PHP为4.54美元/GGE。CLFT、GFT和PHP的能源效率分别为37.7%、37.3%和46.4%，而它们的碳转换效率分别为32.3%、30.5%和40.4%。敏感性分析表明，原料成本对MFSP的影响最大，其次是内部收益率和资本支出。此外，植物容量增加50%（以2000干吨/天生物量为基准）只会导致MFSP减少11%，而植物规模减少50%则会导致MFSP增加17%。这些发现突出了CLFT的经济和技术优势，加强了其作为具有成本效益的可持续燃料发电替代品的承诺。

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引用次数: 0