IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133688

Parikshit Pareek , L.P. Mohasha Isuru Sampath , Anshuman Singh , Lalit Goel , Hoay Beng Gooi , Hung Dinh Nguyen

This work proposes a novel degradation-infused energy portfolio allocation (DI-EPA) framework for enabling the participation of battery energy storage systems in multi-service electricity markets. The proposed framework attempts to address the challenge of including the rainflow algorithm for cycle counting by directly developing a closed-form of marginal degradation as a function of dispatch decisions. Further, this closed-form degradation profile is embedded into an energy portfolio allocation (EPA) problem designed for making the optimal dispatch decisions for all the batteries together, in a shared economy manner. We term the entity taking these decisions as ‘facilitator’ which works as a link between storage units and market operators. The proposed EPA formulation is quipped with a conditional-value-at-risk (CVaR)-based mechanism to bring risk-averseness against uncertainty in market prices. The proposed DI-EPA problem introduces fairness by dividing the profits into various units using the idea of marginal contribution. Simulation results regarding the accuracy of the closed-form of degradation, effectiveness of CVaR in handling uncertainty within the EPA problem, and fairness in the context of degradation awareness are discussed. Numerical results indicate that the DI-EPA framework improves the net profit of the storage units by considering the effect of degradation in optimal market participation.

这项研究提出了一种新颖的边际衰减能源组合分配（DI-EPA）框架，使电池储能系统能够参与多服务电力市场。所提出的框架试图通过直接开发边际退化的闭合形式作为调度决策的函数，来解决将雨流算法纳入周期计数的挑战。此外，该闭式衰减曲线被嵌入到能源组合分配（EPA）问题中，旨在以共享经济的方式为所有电池做出最优调度决策。我们将做出这些决策的实体称为 "促进者"，它是存储单元与市场运营商之间的纽带。建议的 EPA 方案采用基于条件风险价值 (CVaR) 的机制，以规避市场价格不确定性带来的风险。提议的 DI-EPA 问题利用边际贡献的理念将利润划分到不同的单位，从而引入了公平性。仿真结果涉及退化封闭式的准确性、CVaR 在 EPA 问题中处理不确定性的有效性以及退化意识背景下的公平性。数值结果表明，DI-EPA 框架通过考虑退化对最优市场参与的影响，提高了存储单元的净利润。

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引用次数: 0

Does technological progress mode affect just energy transition? A seemingly unrelated regression analysis based on Chinese provincial panel data 技术进步模式影响能源转型吗？基于中国省级面板数据的貌似无关回归分析

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133753

Jingrong Dong , Wenqing Zhang , Yuke Chen , Tingting Li

Just energy transition (JET) refers to the process of shifting from fossil-fuel-based energy systems to more sustainable and renewable energy sources in a manner that is inclusive and socially fair. Technological progress is a key driver of the energy transition. Selecting an appropriate technological progress mode (TPM) to drive JET that harmonizes environmental conservation with employment stability is crucial for economies to achieve sustainable development. Based on seemingly unrelated regression (SUR) analysis, this research uses provincial panel data of China from 2001 to 2020 to examine the effects and underlying mechanisms of various TPMs on JET. We first construct a translog cost function incorporating four TPMs, including technology import, technology transformation, cooperative research and development (R&D), and independent R&D. The study then systematically estimates and contrasts the factor bias and utilization tendencies associated with these TPMs. The findings indicate that (1) technology import does not directly facilitate JET as it leads to neutral technological progress; (2) technology transformation and cooperative R&D, associated with energy-biased technological progress, exhibit a tendency toward energy use and labor saving, which hinders JET; (3) independent R&D, linked with labor-biased technological progress, demonstrates a labor-using and energy-saving orientation, which supports JET; (4) the adverse effects of technology transformation and cooperative R&D on JET can be mitigated through enhanced environmental regulation, increased environmental taxation, and the provision of low-carbon subsidies. We offer policy recommendations for the Chinese government in promoting TPMs that foster JET while also providing insights and experiences that are beneficial to economies at various development stages in their pursuit of JET.

公正的能源转型（JET）是指以包容和社会公平的方式，从基于化石燃料的能源系统转向更可持续和可再生能源的过程。技术进步是能源转型的关键驱动力。选择适当的技术进步模式（TPM）来驱动 JET，使环境保护与就业稳定相协调，对于各经济体实现可持续发展至关重要。本研究基于似非相关回归（SUR）分析，利用中国 2001 年至 2020 年的省级面板数据，考察了各种技术进步模式对 JET 的影响及其内在机制。首先，我们构建了一个包含四种 TPM 的 translog 成本函数，包括技术引进、技术改造、合作研发和自主研发。然后，研究系统地估算并对比了与这些 TPM 相关的要素偏差和利用倾向。D与偏重劳动力的技术进步相关联，表现出使用劳动力和节约能源的倾向，这支持了JET；(4) 技术改造和合作研发对JET的不利影响可以通过加强环境监管、增加环境税和提供低碳补贴来缓解。我们为中国政府推广促进联合技术与转让的技术产权措施提供了政策建议，同时也为处于不同发展阶段的经济体提供了有益于其追求联合技术与转让的见解和经验。

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引用次数: 0

Hierarchical game theory-based optimal power management for both seaports and ships 基于分层博弈论的海港和船舶最佳电力管理

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133748

Shuli Wen , Zhixing Dong , Tianyang Zhao , Miao Zhu , Yuqing Huang

Unlike land-based power systems, a seaport microgrid is not only equipped with extensive electrification but also connected with ships, which turns maritime power management into a comprehensive transportation-power coordination problem. To fully exploit the potential of shipboard power systems for energy efficiency improvement of seaports, a hierarchical Stackelberg game-based framework is developed in this paper to achieve efficient power management for both seaports and ships. In this framework, the seaport microgrid serves as a leader to manage the local sources and determine the price for ships to maximize revenue, considering the influence of both the power side and transportation side. On the other hand, the ships act as followers to decide the charging and service strategies for an optimal trade-off between the benefits from onboard battery charging and the ship service cost. The proposed game is solved as a bilevel optimization problem via mathematical programming with the equilibrium constraints method. The proposed algorithm's efficiency is evaluated through numerical simulations. The simulation results demonstrate that the proposed power management method can simultaneously increase the economic profits of seaports and improve the service of ships at berth. Compared to traditional energy management methods, the comprehensive benefits can be increased by approximately 36 %.

与陆基电力系统不同，海港微电网不仅配备了广泛的电气化设施，而且还与船舶相连，这就将海上电力管理变成了一个综合的运输-电力协调问题。为了充分挖掘船载电力系统在提高海港能效方面的潜力，本文开发了一个基于斯泰克尔伯格博弈的分层框架，以实现海港和船舶的高效电力管理。在这一框架中，海港微电网作为领导者，负责管理本地电源，并在考虑电力侧和运输侧影响的情况下，确定船舶电价，以实现收益最大化。另一方面，船舶作为追随者，决定充电和服务策略，以实现船上电池充电收益与船舶服务成本之间的最佳权衡。所提出的博弈是一个双层优化问题，通过数学程序设计和均衡约束法来解决。通过数值模拟评估了所提算法的效率。仿真结果表明，所提出的电能管理方法可以同时提高海港的经济利润和改善靠泊船舶的服务。与传统能源管理方法相比，综合效益可提高约 36%。

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引用次数: 0

4E analysis and optimization comparison of solar, biomass, geothermal, and wind power systems for green hydrogen-fueled SOFCs 用于绿色氢燃料 SOFC 的太阳能、生物质、地热和风力发电系统的 4E 分析和优化比较

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133740

Mohammad Zoghi, Saleh Gharaie, Nasser Hosseinzadeh, Ali Zare

Integrating renewable energies with hydrogen production via electrolysis and utilizing hydrogen as a fuel for solid oxide fuel cells (SOFCs) presents a synergistic approach towards sustainable energy generation. This coupling offers enhanced flexibility, allowing for efficient energy storage and distribution, thereby addressing intermittency issues associated with renewable sources. Additionally, the utilization of hydrogen in SOFCs enables high-efficiency power generation with reduced emissions, contributing to the transition towards a cleaner energy landscape. In the present study, four types of renewable energies, namely solar, biomass, geothermal, and wind, produce hydrogen by coupling power generation units and a proton exchange membrane electrolyzer (PEME). Then, the produced hydrogen is stored and used for later utilization in an SOFC subsystem. A 4E (energy, exergy, exergy-economic, and environmental) study is conducted for the proposed systems through a sensitivity study and design optimization. In the best output performance mode, the best exergy efficiency is obtained by the biomass-based system, which is equal to 9.40 %, and the lowest values for total cost rate and unit cost of outputs are achievable by the geothermal-based system, with values of 27.72 $/h and 43.23 $/GJ.

通过电解将可再生能源与氢气生产结合起来，并利用氢气作为固体氧化物燃料电池（SOFC）的燃料，是实现可持续能源生产的一种协同方法。这种耦合提供了更大的灵活性，允许高效的能源存储和分配，从而解决与可再生能源相关的间歇性问题。此外，在 SOFC 中利用氢气可实现高效发电并减少排放，有助于向更清洁的能源环境过渡。在本研究中，太阳能、生物质能、地热能和风能这四种可再生能源通过发电装置和质子交换膜电解槽（PEME）的耦合产生氢气。然后，在 SOFC 子系统中储存和利用所产生的氢。通过敏感性研究和优化设计，对拟议系统进行了 4E（能源、放能、放能经济和环境）研究。在最佳输出性能模式下，生物质系统的放能效率最高，为 9.40%；地热系统的总成本费用和单位输出成本费用最低，分别为 27.72 美元/小时和 43.23 美元/GJ。

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引用次数: 0

Cycle analysis and environmental assessments of cascade organic rankine cycle on diesel engine ships 柴油机船舶级联有机秩循环的循环分析和环境评估

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133752

Ji-Won Yoon , Suk-Ho Jung , Chang-Hyo Son , Ho-Saeng Lee , Seung-Taek Lim , Sung-Hoon Seol

This study investigates the application of organic Rankine cycle (ORC) on ships to reduce fuel oil consumption and assess improvements in the Energy Efficiency Existing Ship Index (EEXI), and carbon intensity indicator (CII). A cascade ORC(C-ORC) configuration is designed to utilize the exhaust gas from a diesel engine.

Thermodynamic simulation identified a combination of toluene and R1233zd as the optimal working fluids for the C-ORC. Exergy analysis was conducted to evaluate the performance difference between the C-ORC system and a version with an internal heat exchanger (C-IHX ORC). The results showed a maximum exergy efficiency of 56.78 % for the C-IHX ORC, compared to 49.33 % for the C-ORC. Further evaluations of the C-IHX ORC, including fuel savings, energy generation, EEXI, and CII, demonstrated that average vessel fuel consumption decreased by 1.02 %, and average attained EEXI improved by 0.93 %. Additionally, the attained CII value was enhanced by 0.98 % on average, depending on operating loads and traveled distances. Although the improvements of EEXI, and CII offered were modest, they present the potential for further enhancement through the utilization of additional waste heat sources, such as economizer steam, and jacket cooling water.

本研究调查了有机郎肯循环（ORC）在船舶上的应用，以减少燃油消耗，并评估现有船舶能效指数（EEXI）和碳强度指标（CII）的改进情况。热力学模拟确定甲苯和 R1233zd 组合为 C-ORC 的最佳工作流体。为评估 C-ORC 系统与带有内部热交换器（C-IHX ORC）的系统之间的性能差异，进行了放能分析。结果显示，C-IHX ORC 的最高能效为 56.78%，而 C-ORC 为 49.33%。对 C-IHX ORC 的进一步评估（包括燃料节省、能源产生、EEXI 和 CII）表明，船舶的平均燃料消耗降低了 1.02%，平均 EEXI 提高了 0.93%。此外，根据运行负荷和航行距离的不同，达到的 CII 值平均提高了 0.98%。虽然 EEXI 和 CII 的改善幅度不大，但通过利用更多的废热源（如省煤器蒸汽和夹套冷却水），仍有进一步提高的潜力。

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引用次数: 0

Effects of mooring failure on the dynamic behavior of the power capture platforms 系泊失效对动力捕获平台动态行为的影响

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133761

Lin Cui , Haitao Wu , Meng Li , Mengyao Lu , Weixing Liu , Zhiyang Zhang

In recent years, for enhancing the ocean energy capture, it has been prevail to combine multiple wave energy converters (WECs) with the floating platforms. A power capture platform concepts is proposed in this paper based on the point-absorber WEC array and the SPIC semi-submersible platform. The present study conducts the time-domain dynamic analysis on the performance of the power capture platforms with mooring failure. After the validation of the numerical models, ANSYS-AQWA is employed to investigate the platform motion response, the remaining mooring lines' tension response, and the WEC array's power output. The results show that the platform motion and the remaining mooring lines' tension appear significant transient overshoots after mooring failure. The mean motion response of the platform increases because of the reduction of mooring stiffness. Meanwhile, the energy distribution of the platform slow-drift and roll motions at the low-frequency region increases as well. Moreover, the mooring line tension adjacent to the failed mooring line increases significantly, while that of other mooring lines decreases. Notably, mooring failure has slight effects on the WEC array's energy conversion performance, and the total absorbed power among Model 2 is more than that among Model 1. These important findings provide some insights into the design of power capture platforms. Moreover, to ensure the floating system stable and reliable, the effects of mooring failure and the resulting changes should be evaluated in advance.

近年来，为提高海洋能量捕获能力，将多个波浪能转换器（WECs）与浮式平台结合起来的做法十分盛行。本文提出了一种基于点吸收式波浪能转换器阵列和 SPIC 半潜式平台的功率捕获平台概念。本研究对系泊失效时的电力捕获平台性能进行了时域动态分析。在对数值模型进行验证后，采用 ANSYS-AQWA 对平台运动响应、剩余缆绳张力响应和 WEC 阵列功率输出进行了研究。结果表明，系泊失效后，平台运动和剩余系泊线张力出现明显的瞬态过冲。由于系泊刚度降低，平台的平均运动响应增大。同时，低频区平台慢漂移和滚动运动的能量分布也会增加。此外，失效系泊线附近的系泊线张力会显著增加，而其他系泊线的张力则会减小。值得注意的是，系泊失效对水力发电阵列的能量转换性能影响较小，模型 2 的总吸收功率大于模型 1。这些重要发现为电力捕获平台的设计提供了一些启示。此外，为确保浮动系统稳定可靠，应提前评估系泊失效的影响及由此带来的变化。

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引用次数: 0

The power of digitalization: A study of the effect of the digital economy on household energy poverty 数字化的力量：数字经济对家庭能源贫困的影响研究

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133652

Kaixia Zhang , Caiqi Bu

Severe energy poverty is one of the major challenges hindering the achievement of sustainable development in developing countries, while the current rapid advances in the digital economy offer new ways to alleviate energy poverty, the household-level effects of which urgently need to be supported by more empirical research. Using Chinese household-level panel data from 2010 to 2020, we identify the causal effects of the digital economy on household energy poverty by employing the "Broadband China" pilot policy and applying the difference-in-differences (DID) method. Research shows that the digital economy can significantly mitigate household energy poverty, especially among low earning and low educational inputs households. Improving energy accessibility through increased Internet use and promoting energy affordability through increased employment and income are the main channels through which the digital economy can exert an energy poverty reduction effect. Moreover, welfare analyses indicate that the power of digitalization not only reduces household energy poverty, but also further enhances the residents' welfare and improves local carbon reduction welfare performance. This study will provide new ideas from the viewpoint of digital economy development to improve household energy poverty governance in developing countries.

严重的能源贫困是阻碍发展中国家实现可持续发展的主要挑战之一，而当前数字经济的快速发展为缓解能源贫困提供了新的途径，其家庭层面的影响亟需更多实证研究的支持。利用 2010-2020 年中国家庭层面的面板数据，通过 "宽带中国 "试点政策和差分法（DID），我们识别了数字经济对家庭能源贫困的因果效应。研究表明，数字经济能显著缓解家庭能源贫困，尤其是低收入和低教育投入家庭的能源贫困。通过增加互联网使用提高能源可及性，通过增加就业和收入促进能源可负担性，是数字经济发挥能源减贫效应的主要渠道。此外，福利分析表明，数字化的力量不仅能减少家庭能源贫困，还能进一步提高居民福利，改善地方碳减排福利绩效。本研究将从数字经济发展的角度为改善发展中国家家庭能源贫困治理提供新思路。

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引用次数: 0

Advanced dual mixed refrigerant (DMR) natural gas liquefaction plant with liquid air: Focus on configuration and optimization 采用液态空气的先进双混合制冷剂 (DMR) 天然气液化装置：关注配置和优化

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133747

Haneul Mun , Dohee Kim , Jinwoo Park , Inkyu Lee

This study introduces a novel approach to integrating LNG cold energy into the dual mixed refrigerant (DMR) process, employing liquid air as a cold energy carrier. The DMR process is chosen for natural gas liquefaction due to its flexibility in adjusting mixed refrigerant compositions when external cold sources are utilized. Two configurations are investigated: the low-pressure liquid air (LPLA) process, which relies solely on heat exchange, and the high-pressure liquid air (HPLA) process, which involves the pressurization and expansion of liquid air. Additionally, two optimization strategies are explored: 'With Composition' (WC) optimization, which includes refrigerant composition as a variable, and 'Without Composition' (WOC) optimization, which does not. Utilizing liquid air reduces the load on the refrigeration cycle, leading to improved performance compared to the conventional DMR process. The air expansion generates additional power and cold energy, while WC optimization further reduces the flow rate of low-boiling point components, significantly lowering compression energy consumption. As a result, the DMR-HPLA-WC process achieves a 44.17 % reduction in energy consumption, an 8.7 % improvement in exergy efficiency, and a 37.63 % decrease in specific costs.

本研究采用液态空气作为冷能载体，介绍了一种将液化天然气冷能集成到双混合制冷剂（DMR）工艺中的新方法。之所以选择 DMR 工艺来进行天然气液化，是因为该工艺在利用外部冷源时可以灵活调整混合制冷剂成分。研究了两种配置：低压液态空气（LPLA）工艺和高压液态空气（HPLA）工艺，前者仅依靠热交换，后者涉及液态空气的增压和膨胀。此外，还探讨了两种优化策略："有成分"（WC）优化和 "无成分"（WOC）优化，前者将制冷剂成分作为变量，后者则不将制冷剂成分作为变量。与传统的 DMR 工艺相比，利用液态空气可降低制冷循环的负荷，从而提高性能。空气膨胀产生额外的动力和冷能，而 WC 优化则进一步降低了低沸点成分的流速，从而显著降低了压缩能耗。因此，DMR-HPLA-WC 工艺的能耗降低了 44.17%，放能效率提高了 8.7%，具体成本降低了 37.63%。

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引用次数: 0

Techno-economic performance analysis of biomass-to-methanol with solid oxide electrolyzer for sustainable bio-methanol production 利用固体氧化物电解槽生产生物质转化甲醇以实现可持续生物甲醇生产的技术经济性能分析

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133764

Thanaphorn Detchusananard , Kunlanan Wiranarongkorn , Karittha Im-orb

The analysis of the technical and economic performance of an integrated biomass to methanol and solid oxide electrolysis process (BtM-SOEC) is studied to find more sustainable process of bio-methanol production. The oil palm empty fruit branch (EFB) which is abundant in Thailand is used as biomass feedstock. Modeling of the BtM-SOEC is done using Aspen Plus. For technical aspects, the production rate of oxygen and hydrogen from the SOEC can be enhanced through an appropriate adjustment of the number of cells and cell temperature. The BtM-SOEC offers higher methanol yield and overall efficiency, while consumes less energy than the conventional biomass to methanol process (BtM). The maximum methanol production rate of 0.4995 kmol hr⁻¹ derived from BtM-SOEC is achieved at a number of cells of 325 cells and a cell temperature of 700 °C, at this condition the overall efficiency is 64.79 %. The economic assessment indicates that the conventional BtM and BtM-SOEC are still not economically feasible. However, the conventional BtM is more economically feasible than the BtM-SOEC. The methanol cost of BtM-SOEC can turn out to be economically feasible when renewable electricity cost and SOEC cost decrease substantially. The methanol cost of the BtM-SOEC (620 USD ton⁻¹) can be competitive to that of the BtM (703 USD ton⁻¹) when the cost of input renewable electricity decreases by 80 %. Consequently, this research highlights the potential of BtM-SOEC from agricultural residues for sustainable bio-methanol production in the future market condition that the cost of renewable electricity tends to continuously decrease with the technology development and increased technology adoption and the carbon policy tends to be tightened to relieve global warming.

研究分析了生物质制甲醇和固体氧化物电解综合工艺（BtM-SOEC）的技术和经济性能，以找到更可持续的生物甲醇生产工艺。泰国盛产的油棕空果枝（EFB）被用作生物质原料。使用 Aspen Plus 对 BtM-SOEC 进行建模。在技术方面，可以通过适当调整电池数量和电池温度来提高 SOEC 的氧气和氢气生产率。与传统的生物质制甲醇工艺（BtM）相比，BtM-SOEC 具有更高的甲醇产量和整体效率，同时能耗更低。在电池数量为 325 个、电池温度为 700 °C 的条件下，BtM-SOEC 的最大甲醇生产率为 0.4995 kmol hr-1，总效率为 64.79 %。经济评估表明，传统 BtM 和 BtM-SOEC 在经济上仍然不可行。不过，传统 BtM 比 BtM-SOEC 更经济可行。当可再生电力成本和 SOEC 成本大幅下降时，BtM-SOEC 的甲醇成本就会变得经济可行。当输入的可再生电力成本降低 80% 时，BtM-SOEC 的甲醇成本（620 美元/吨-1）与 BtM（703 美元/吨-1）相比具有竞争力。因此，这项研究强调了利用农业残留物生产 BtM-SOEC 生物甲醇在未来市场条件下的潜力，即随着技术的发展和技术应用的增加，可再生电力的成本趋于持续下降，以及碳政策趋于收紧以缓解全球变暖。

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引用次数: 0

Experimental and kinetic studies on steam gasification of oxidized carbon-rich fraction from coal gasification fine slag 煤气化细渣氧化富碳组分蒸汽气化的实验和动力学研究

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy

Pub Date : 2024-11-07 DOI: 10.1016/j.energy.2024.133711

Liang Ren , Yajuan Wu , Yan Gong , Qinghua Guo , Guangsuo Yu , Fuchen Wang

Gasification is an important method to realize the resource utilization of coal gasification fine slag (CGFS). In this work, the carbon-rich fraction (CF) of CGFS was modified by oxidation, and the gasification reactivities, structures, and kinetics of samples were studied. The results demonstrate that compared to CF, the gasification characteristic temperatures of oxidized CF are lower, the weight loss rates are faster, and the gasification reactivities are significantly enhanced. These improvements are attributed to the structural evolutions of oxidized CF. Compared with CF, the specific surface area and pore volume of oxidized CF increase by at least 2.5 and 1.5 times, the proportions of oxygen-containing groups rise, and the carbon microstructure of different oxidized CF varies significantly. CF oxidized by steam exhibits the most developed porosity and the most disordered carbon microstructure, corresponding to the highest gasification reactivity of all the samples. The kinetics results showcase that the diffusion reaction model is suitable for describing the gasification process of samples, so porosity emerged as the primary factor determining the gasification reactivity. However, the influence of carbon microstructure and active groups on the gasification reactivity of oxidized CF is enhanced when the porosity meets the diffusion requirements of the gasification reaction.

气化是实现煤气化细渣（CGFS）资源化利用的重要方法。本研究对煤气化细渣中的富碳组分（CF）进行了氧化改性，并对样品的气化反应活性、结构和动力学进行了研究。结果表明，与 CF 相比，氧化 CF 的气化特征温度更低、失重率更快、气化反应活性显著提高。这些改进归因于氧化 CF 的结构演变。与 CF 相比，氧化 CF 的比表面积和孔隙率至少增加了 2.5 倍和 1.5 倍，含氧基团的比例上升，不同氧化 CF 的碳微观结构差异显著。在所有样品中，用蒸汽氧化的 CF 的孔隙度最发达，碳微观结构最无序，气化反应活性最高。动力学结果表明，扩散反应模型适用于描述样品的气化过程，因此孔隙率成为决定气化反应性的主要因素。然而，当孔隙率满足气化反应的扩散要求时，碳的微观结构和活性基团对氧化 CF 的气化反应活性的影响会增强。

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引用次数: 0

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