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学者姓名：江莉龙
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Abstract ：
氨部分预分解是改善氨的燃烧性能的有效手段,但对于氨预分解条件的影响仍缺乏系统的研究.该文针对基于氨预分解策略的氨扩散燃烧装置开展数值模拟研究,以分析氨预分解比例、当量比和氨分解余热对燃烧及污染物排放特性的影响.结果表明,随着氨预分解比例提高,火焰温度提高,火焰高温区更靠近喷嘴,NOx排放量下降;NO排放在NOx中占主导,并随着当量比的提高先增大后减小;N2O排放主要发生在低氨预分解比例、低当量比条件下,在氨预分解比例达到50％后基本消失;利用氨分解余热预热燃料有助于稳定燃烧,并在氨预分解比例不超过30％时,明显减少氨泄漏而未增加NOx排放.研究表明,提高氨预分解比例和当量比能有效改善氨燃烧及污染物排放特性,而在小比例氨预分解条件下应充分利用氨分解的余热.
Keyword ：
NOx排放 NOx排放 当量比 当量比 数值模拟 数值模拟 氨分解 氨分解 氨氢燃烧 氨氢燃烧
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| GB/T 7714 | 黄文仕 , 王智雄 , 林立 et al. 基于氨预分解的氨扩散燃烧模拟研究 [J]. | 中国电机工程学报 , 2025 , 45 (2) : 479-488,中插7 . |
| MLA | 黄文仕 et al. "基于氨预分解的氨扩散燃烧模拟研究" . | 中国电机工程学报 45 . 2 (2025) : 479-488,中插7 . |
| APA | 黄文仕 , 王智雄 , 林立 , 伍泽赟 , 王大彪 , 罗宇 et al. 基于氨预分解的氨扩散燃烧模拟研究 . | 中国电机工程学报 , 2025 , 45 (2) , 479-488,中插7 . |
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当液氨管道处于事故泄漏、停输超压或计划维护等情况时,可采用泄放的方式对管内液氨进行泄压回收.由于氨的高体积膨胀性,其泄放过程的节流效应会导致管内温度骤降,加剧管道受冷收缩和脆性断裂的风险.针对目前液氨管道泄放特性研究不足,参考国内外相关设计和运行参数,建立液氨管道泄放仿真模型,探讨管长、管径和操作条件(温度、压力)影响下的泄放特征参数发展规律.研究结果表明:随着管道长度减小,泄放初期管内压降和温降增大,泄放过程压力和温度随时间下降幅度增加;随着管径减小,泄放口初始压力和温度下降幅度增大,泄放时间和泄放最低温度减小;管道运行压力对整体泄放过程影响较小;管道运行温度越低,泄放口初始温降越大,泄放所需时间越长.研究成果将为液氨管道紧急泄放的安全控制和应急方案的制定提供重要依据.
Keyword ：
仿真模拟 仿真模拟 影响因素 影响因素 泄放 泄放 液氨管道 液氨管道 特征参数 特征参数
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| GB/T 7714 | 尹鹏博 , 林涌滨 , 滕霖 et al. 液氨管道泄放特性及影响因素研究 [J]. | 化学工程 , 2025 , 53 (2) : 78-83 . |
| MLA | 尹鹏博 et al. "液氨管道泄放特性及影响因素研究" . | 化学工程 53 . 2 (2025) : 78-83 . |
| APA | 尹鹏博 , 林涌滨 , 滕霖 , 李卫东 , 黄鑫 , 李臻超 et al. 液氨管道泄放特性及影响因素研究 . | 化学工程 , 2025 , 53 (2) , 78-83 . |
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Efficient recognition and selective capture of NH3 is not only beneficial for increasing the productivity of the synthetic NH3 industry but also for reducing air pollution. For this purpose, a group of deep eutectic solvents (DESs) consisting of glycolic acid (GA) and phenol (PhOH) with low viscosities and multiple active sites was rationally designed in this work. Experimental results show that the GA + PhOH DESs display extremely fast NH3 absorption rates (within 51 s for equilibrium) and high NH3 solubility. At 313.2 K, the NH3 absorption capacities of GA + PhOH (1:1) reach 6.75 mol/kg (at 10.7 kPa) and 14.72 mol/kg (at 201.0 kPa). The NH3 solubility of GA + PhOH DESs at low pressures were minimally changed after more than 100 days of air exposure. In addition, the NH3 solubility of GA + PhOH DESs remain highly stable in 10 consecutive absorption-desorption cycles. More importantly, NH3 can be selectively captured by GA + PhOH DESs from NH3/CO2/N-2 and NH3/N-2/H-2 mixtures. H-1-NMR, Fourier transform infrared and theoretical calculations were performed to reveal the intrinsic mechanism for the efficient recognition of NH3 by GA + PhOH DESs.
Keyword ：
deep eutectic solvent deep eutectic solvent low viscosity low viscosity multiple active site multiple active site NH3 recognition NH3 recognition selective capture selective capture
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| GB/T 7714 | Zheng, Lu , Ju, Saisai , Fang, Siqi et al. Rational design of deep eutectic solvents with low viscosities and multiple active sites for efficient recognition and selective capture of NH3 [J]. | SMART MOLECULES , 2025 , 3 (1) . |
| MLA | Zheng, Lu et al. "Rational design of deep eutectic solvents with low viscosities and multiple active sites for efficient recognition and selective capture of NH3" . | SMART MOLECULES 3 . 1 (2025) . |
| APA | Zheng, Lu , Ju, Saisai , Fang, Siqi , Zhang, Hongwei , Cai, Zhenping , Huang, Kuan et al. Rational design of deep eutectic solvents with low viscosities and multiple active sites for efficient recognition and selective capture of NH3 . | SMART MOLECULES , 2025 , 3 (1) . |
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Capture of acid gases holds crucial importance for addressing air pollution and climate change, where achieving a molar ratio for adsorption and separation of acid gases on an active site higher than 1.0 remains challenging. Herein, we demonstrate that three nitrogen-bonded one Zn sites within a single-crystalline-like porous carbon (Zn-N3@SC-PC) derived from controlled carbonization of ZIF-8-C equivalent to N with KCl, exhibit supra-multi-molar adsorption for CO2, COS, and H2S, even to 1:6 ratio for SO2 on the Zn-N3. This exceptional performance is attributed to the protruded structure in the Zn-N3@SC-PC for more coordination between Zn vacant orbital and acid gases evidenced by DFT calculation and in situ EXAFS. The high capacity for capturing acid gases on this adsorbent is crucial for future in carbon neutrality and environment protection.
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| GB/T 7714 | Zhang, Guanqing , Liu, Fengqing , Zhong, Shouchao et al. Surpassing stoichiometric limitation for supra-multi-molar adsorption and separation of acid gases [J]. | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
| MLA | Zhang, Guanqing et al. "Surpassing stoichiometric limitation for supra-multi-molar adsorption and separation of acid gases" . | NATURE COMMUNICATIONS 16 . 1 (2025) . |
| APA | Zhang, Guanqing , Liu, Fengqing , Zhong, Shouchao , Liu, Fujian , Zhu, Qiliang , Tang, Yu et al. Surpassing stoichiometric limitation for supra-multi-molar adsorption and separation of acid gases . | NATURE COMMUNICATIONS , 2025 , 16 (1) . |
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The sequential co-transportation of ammonia and refined oil has emerged as an efficient strategy to address the growing demand for large-scale onshore ammonia transportation. The interfacial characteristics between these fluids critically govern the evolution of the ammonia-oil mixing zone, which can directly affect the purity of ammonia and oil products. In this work, molecular dynamics simulations were employed to investigate the effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil, with isooctane as the representative of refined oil. The results demonstrated that the increased temperature (280-300 K) and the decreased pressure (2-50 MPa) can disrupt the interfacial molecules, causing the ammonia-isooctane interface to become thicker and rougher. Under high temperature and low pressure, the voids at the interface of the isooctane phase can be expanded, and the ammonia-ammonia hydrogen bonds can be weakened, which can enhance the diffusion of ammonia molecules into the isooctane phase. Besides, the diffusion of ammonia molecules in ammonia phase can be promoted under high temperature and low pressure, and the diffusion coefficient of interfacial ammonia in the direction perpendicular to the interface is 1.4-1.8 times that of bulk ammonia in all directions and that of interfacial ammonia in the direction parallel to the interface. In addition, the increase in the thickness and roughness of the interface can lead to a decrease in the interfacial tension.
Keyword ：
Ammonia Ammonia Interfacial characteristics Interfacial characteristics Interfacial tension Interfacial tension Molecular dynamics simulation Molecular dynamics simulation
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| GB/T 7714 | Teng, Lin , Liu, Yi , Li, Zhenchao et al. The effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil: A molecular dynamics simulation study [J]. | CHEMICAL ENGINEERING SCIENCE , 2025 , 320 . |
| MLA | Teng, Lin et al. "The effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil: A molecular dynamics simulation study" . | CHEMICAL ENGINEERING SCIENCE 320 (2025) . |
| APA | Teng, Lin , Liu, Yi , Li, Zhenchao , Rao, Shihang , Huang, Xin , Li, Jiaqing et al. The effect of temperature and pressure on the interfacial characteristics between ammonia and refined oil: A molecular dynamics simulation study . | CHEMICAL ENGINEERING SCIENCE , 2025 , 320 . |
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利用风光新能源,寻找沿海受端电力系统较低成本的减碳路径,是中国"碳达峰·碳中和"目标实现的核心挑战之一.通过分析氢氨储能与现有储能类型(如电化学、压缩空气等)的技术经济差异,建立了时序减碳约束下含耦合火电掺烧的氢氨储能的电力系统多年拓展规划模型,并探讨其在电力系统中实现较低成本减碳的技术经济可行性.算例选取广东电网实际数据进行研究.结果表明,在日益严格的碳减排约束下,需要逐步通过新增风光储、"以气代煤"的火电规划模式、新增氢氨储能(包含气电掺氢、煤电掺氨和氨分解等方式)等技术路径实现减碳目标.对比仅通过锂电池调峰的减碳模式,通过引入耦合火电掺烧的氢氨储能技术,可以避免超配大量的风光储容量,显著降低了风光弃电率.这不仅实现了资源的集约利用,而且通过复用存量火电基础设施,进一步降低了氢氨储能减碳成本.因此,利用氢氨储能技术进行电力系统减碳是一条可规模化且较为经济可行的减碳路径.
Keyword ：
储能 储能 减碳 减碳 受端电力系统 受端电力系统 平准化减碳成本 平准化减碳成本 拓展规划 拓展规划 气电掺氢 气电掺氢 煤电掺氨 煤电掺氨
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| GB/T 7714 | 余志鹏 , 林今 , 雷金勇 et al. 考虑火电掺氢氨燃烧发电的受端电力系统多阶段减碳规划 [J]. | 电力系统自动化 , 2025 , 49 (5) : 57-68 . |
| MLA | 余志鹏 et al. "考虑火电掺氢氨燃烧发电的受端电力系统多阶段减碳规划" . | 电力系统自动化 49 . 5 (2025) : 57-68 . |
| APA | 余志鹏 , 林今 , 雷金勇 , 汪洋 , 宋永华 , 江莉龙 et al. 考虑火电掺氢氨燃烧发电的受端电力系统多阶段减碳规划 . | 电力系统自动化 , 2025 , 49 (5) , 57-68 . |
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Water gas shift reaction is an important process in hydrogen production from carbon-based materials. Cu-based catalysts are widely used in low-temperature water gas shift reactions. The problem is that Cu species are prone to sintering and deactivation, as well as the controversial reaction mechanism. Herein, CuFe2O4 modified with Al3+ is served as the Cu-based catalyst precursor, and the catalytic structure-activity relationship as well as reaction mechanism are carefully investigated. The modification of CuFe2O4 precursor by Al3+ enhances the Cu species dispersion, redox properties and electron transfer ability, leading to increasing the proportion of Cu+/ (Cu0+Cu+), which results in enhancing the ability of the catalyst to adsorb CO and dissociate H2O. The combination of temperature-programmed surface reaction (TPSR) and infrared spectroscopy shows that the catalyst with weak water dissociation ability and medium CO adsorption capacity are prone to obey the association mechanism.
Keyword ：
Association mechanism Association mechanism Copper ferrite Copper ferrite Cu plus site Cu plus site Metal-support interaction Metal-support interaction Spinel Spinel
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| GB/T 7714 | Zhi, Guo , Huang, Chunjin , Ren, Hongju et al. Ternary Cu-Fe-Al spinel catalyst for hydrogen production via water gas shift reaction: Electron transfer enhancement and reaction mechanism [J]. | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 102 : 1093-1102 . |
| MLA | Zhi, Guo et al. "Ternary Cu-Fe-Al spinel catalyst for hydrogen production via water gas shift reaction: Electron transfer enhancement and reaction mechanism" . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 102 (2025) : 1093-1102 . |
| APA | Zhi, Guo , Huang, Chunjin , Ren, Hongju , Fang, Huihuang , Chen, Chongqi , Luo, Yu et al. Ternary Cu-Fe-Al spinel catalyst for hydrogen production via water gas shift reaction: Electron transfer enhancement and reaction mechanism . | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY , 2025 , 102 , 1093-1102 . |
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Achieving green ammonia (NH3) synthesis requires developing effective catalysts under mild conditions. However, the competitive adsorption of N-2 and H-2, as well as the strong binding of N-containing intermediates on the catalyst, greatly inhibits the active sites for efficient NH3 synthesis. Here, we constructed a series of ZrH2-modified Fe catalysts with dual active sites to address these issues and realized efficient NH3 synthesis under mild conditions. Our study shows that ZrH2 can not only provide active sites for H-2 activation but also transfer electrons to Fe sites for accelerating N-2 activation. The interaction between Fe and ZrH2 over 40ZrH(2)-Fe leads to a decrease in work function and a downward shift of the d-band center, which is conducive to N-2 activation and NH3 desorption, respectively. The utilization of distinct sites for activating different reactants can avoid the competitive adsorption of N-2 and H-2, leading to excellent NH3 synthesis activity of the 40 wt.% ZrH2-mediated Fe catalyst. As a result, 40ZrH(2)-Fe exhibits a high NH3 synthesis rate of 23.3 mmol g(cat)(-1) h(-1) at 400 degrees C and 1 MPa and robust stability during 100 h time-on-stream.
Keyword ：
ammonia synthesis ammonia synthesis competitive adsorption competitive adsorption dual-site catalyst dual-site catalyst N-2 activation N-2 activation synergistic effect synergistic effect
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| GB/T 7714 | Zhang, Shiyong , Zhang, Mingyuan , Zhang, Tianhua et al. A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions [J]. | SCIENCE CHINA-CHEMISTRY , 2025 , 68 (4) : 1576-1584 . |
| MLA | Zhang, Shiyong et al. "A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions" . | SCIENCE CHINA-CHEMISTRY 68 . 4 (2025) : 1576-1584 . |
| APA | Zhang, Shiyong , Zhang, Mingyuan , Zhang, Tianhua , Sun, Jizhen , Li, Jiaxin , Su, Kailin et al. A dual-site Fe-based catalyst for efficient ammonia synthesis under mild conditions . | SCIENCE CHINA-CHEMISTRY , 2025 , 68 (4) , 1576-1584 . |
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The development of advanced catalysts is critical to realize efficient ammonia (NH3) synthesis under mild conditions. However, the activation of an inert N equivalent to N bond in N2 molecules is the primary hindrance to NH3 synthesis, and hydrogen poisoning is another major and a serious problem, especially in Ru-based catalysts. Here, we develop an H-ZSM-5-supported Ru-based catalyst (Ce-Ru/HZ) via decorating with a CeO2 promoter to realize efficient NH3 synthesis. Our study shows that the Ce species can serve as an electron donor to enrich the electron density of Ru sites, thus accelerating N2 activation for NH3 synthesis. Meanwhile, the interaction of Ru and Ce can alleviate the effect of hydrogen poisoning on Ru sites. Consequently, the 16 wt % Ce-promoted Ru/HZ catalyst displays a superior NH3 synthesis rate and long-term stability of more than 550 h at 400 degrees C and 1 MPa.
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| GB/T 7714 | Zhang, Tianhua , Yue, Kexin , Mo, Jiangyang et al. Enhanced Ammonia Synthesis Performance over Ru-Based Catalysts via the Addition of Ce Promoter [J]. | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2025 , 64 (18) : 9070-9077 . |
| MLA | Zhang, Tianhua et al. "Enhanced Ammonia Synthesis Performance over Ru-Based Catalysts via the Addition of Ce Promoter" . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 64 . 18 (2025) : 9070-9077 . |
| APA | Zhang, Tianhua , Yue, Kexin , Mo, Jiangyang , Zhang, Mingyuan , Zhu, Jie , Lin, Ruting et al. Enhanced Ammonia Synthesis Performance over Ru-Based Catalysts via the Addition of Ce Promoter . | INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH , 2025 , 64 (18) , 9070-9077 . |
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The functionalities of N-doped carbons primarily rely on the exposed edge-nitrogen sites, which play a critical role in SO2 and CO2 adsorption. Rationally creating edge-nitrogen sites so as to promote their applications in various areas has not yet been well resolved. Herein, we developed ZnCl2-coordination-pyrolysis to design large specific surface area (1220 similar to 1645 m(2)/g) and edge-nitrogen rich porous carbons (E-NPC-x), where chitosan was employed as the carbon precursor. Similar to animals revealing new skin after shedding their old one, the migration and evaporation of zinc during pyrolysis leave abundant micro-mesoporosity, adjacent to which high proportion of edge-nitrogen sites was created due to strong coordination interaction between Zn2+ and nitrogen atoms. This feature significantly enhances the performance of E-NPC-x for acid gases capture, showing high SO2 capacities with fast adsorption equilibrium rates (14.6 mmol/g, 25 degrees C, 1.0 bar), and improved SO2/N-2 (0.1/0.9) IAST selectivities (251.1). The room-temperature diluted CO2 (2.0 vol%) under flue gas conditions, can be efficiently and precisely separated over the E-NPC-x with high breakthrough capacities (0.49 mmol/g). The nitrogen efficiencies of E-NPC-x for acid gases capture surpass those of current literature-reported N-doped porous carbons, underscoring its potential as a highly effective solution for mitigating environmental pollution. This work highlights a significant advance in the design of functional materials for environmental protection, addressing pressing challenges in acid gas management and contributing to a cleaner and more sustainable future.
Keyword ：
Acid gases capture Acid gases capture Coordination pyrolysis Coordination pyrolysis Edge nitrogen sites Edge nitrogen sites N-doped porous carbons N-doped porous carbons Nitrogen efficiencies Nitrogen efficiencies
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| GB/T 7714 | Kan, Xun , Yuan, Jiamin , Zhu, Qiliang et al. Edge-nitrogen rich porous carbons for acid gases capture [J]. | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 . |
| MLA | Kan, Xun et al. "Edge-nitrogen rich porous carbons for acid gases capture" . | CHEMICAL ENGINEERING JOURNAL 512 (2025) . |
| APA | Kan, Xun , Yuan, Jiamin , Zhu, Qiliang , Qiu, Yongwang , Zhong, Shouchao , Liu, Zhiqiang et al. Edge-nitrogen rich porous carbons for acid gases capture . | CHEMICAL ENGINEERING JOURNAL , 2025 , 512 . |
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