Article
Engineering, Environmental
Jian Sun, Lei Wang, Jinjin Yu, Binglin Guo, Liang Chen, Yuying Zhang, Diwei Wang, Zhenxing Shen, Daniel C. W. Tsang
Summary: This study tailored four binders for low-carbon stabilization/solidification (S/S) of municipal solid waste incineration fly ash (MIFA) and successfully decreased the leachability of potentially toxic elements. The cytotoxicity of treated MIFA was significantly reduced, with phosphate-modified treatments showing the lowest reactive oxygen species (ROS) inducing abilities and enhanced tolerant dosage of cytotoxicity.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Review
Engineering, Environmental
Dongyang He, Hongyun Hu, Facun Jiao, Wu Zuo, Changqi Liu, Hao Xie, Lu Dong, Xinye Wang
Summary: This paper comprehensively reviews four thermal separation methods for extracting heavy metals from municipal solid waste incineration (MSWI) fly ash, comparing them in terms of separation effectiveness, economic feasibility, technical maturity, and environmental impact. Additionally, the possibility of urban mining from MSWI fly ash is evaluated, indicating significant environmental and social benefits despite potentially higher costs. Finally, the limitations of existing thermal separation methods and the focus of further research, including both mechanisms and experimental investigations, are outlined.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Mingxue Xin, Yingjie Sun, Weihua Li, Junquan Yin, Yinkai Wu, Yuyang Long, Rongxing Bian, Ya-nan Wang, Huawei Wang, Yufei Yang, Qifei Huang
Summary: The rapid generation of municipal solid waste incineration fly ash poses a huge burden on landfill management. Co-landfilling of stabilized fly ash and municipal solid waste can result in the release of PCDD/Fs into the environment, causing potential risks.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Construction & Building Technology
Shuai Wang, Caihong Xue, Qingxin Zhao, Yanying Bai, Weichao Guo, Yuxuan Shi, Yongxiang Qiu, Huimin Pan
Summary: A novel binder was developed from municipal solid waste incineration fly ash (MSWIFA) and phosphogypsum (PG). The results showed that MSWIFA can effectively activate GGBS and FA, improving the compressive strength of the ternary binder MGF. The addition of 5% PG further enhanced the strength of MGF, while excessive PG caused reduction in compressive strength.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Environmental Sciences
Baoju Liu, Lei Yang, Jinyan Shi, Shipeng Zhang, Caglar Yalcinkaya, Abdullah Faisal Alshalif
Summary: Stabilizing/solidificating municipal solid waste incineration fly ash (MIFA) with cement is a common strategy. This study investigated the high-value utilization of MIFA in ordinary Portland cement (OPC) components. Binary-binding-system mortar was produced by partially replacing OPC with MIFA, and the effects of different curing regimes on the properties of the cement mortar were studied. The results showed that steam curing and carbonation curing improved the strength and performance of MIFA-modified mortar.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Dehua Liang, Lang Tao, Fei Wang, Guojun Lv
Summary: This study analyzed the feasibility of utilizing geopolymers to recycle MSWI FA and found that geopolymers can improve their properties by enhancing the reactivity of raw materials and promoting hydration reactions. Geopolymers also exhibit excellent capability in solidification/stabilization of pollutants.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Zhiliang Chen, Xiaoqing Lin, Sheng Zhang, Xiangbo Zou, Xiaodong Li, Shengyong Lu, Jianhua Yan
Summary: Thermal treatment effectively decomposed PCDD/Fs in all samples to a level meeting the reutilization criterion of 50 ng WHO-TEQ g-1. Cleavage of the oxygen bridge was identified as the primary decomposition pathway. Compared to mono-treating FA, cotreating FA with SS resulted in a better CaO-Al2O3-SiO2 ternary system for vitrification and effectively suppressed the reformation of PCDD/Fs in offgases with inhibition efficiencies up to 96%.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Energy & Fuels
Shuping Pan, Jiamin Ding, Yaqi Peng, Shengyong Lu, Xiaodong Li
Summary: The study utilized water washing and mechanochemical treatment to improve the properties of municipal solid waste incineration fly ash, allowing it to be used in cement mortar production. The treated fly ash can partially replace ordinary Portland cement, enhance the strength of cement mortar, and have a minimal impact on the mortar's performance.
Article
Engineering, Environmental
Zhikun Zhang, Yanli Wang, Yuqi Zhang, Boxiong Shen, Jiao Ma, Lina Liu
Summary: This study investigated the stabilization behavior of heavy metals in hazardous municipal solid waste incineration fly ash (FA) using coal fly ash (CFA) as an additive via hydrothermal treatment. The results showed that most heavy metals were stabilized in the hydrothermal product, and the addition of CFA resulted in the reduction of leaching concentrations and risk assessment code (RAC) of heavy metals. The method with 30% CFA exhibited the most superior performance.
Article
Engineering, Environmental
Jiazheng Zhang, Yanpeng Mao, Wenlong Wang, Xujiang Wang, Jingwei Li, Yang Jin, Dongjie Pang
Summary: This study explores the dechlorination effect and mechanism of washing incineration fly ash with low concentrations of organic acid lotion, and finds that the chlorine content of the fly ash can be reduced to a lower level. The washing process has an impact on the pyrolysis of the fly ash, reducing the release of chlorides and benefiting the preparation of cement raw meal.
Article
Environmental Sciences
Xin Bo, Jing Guo, Ruxing Wan, Yuling Jia, Zhaoxu Yang, Yong Lu, Min Wei
Summary: This study investigated and evaluated the presence of PCDD/Fs and heavy metals in soil near MSW incineration plants in Sichuan province. The findings revealed the coexistence and coaccumulation of these pollutants in soil and demonstrated that the health risks associated with them were within acceptable levels.
ENVIRONMENTAL POLLUTION
(2022)
Article
Energy & Fuels
Xing Chuai, Qinghua Yang, Tiantian Zhang, Yongchun Zhao, Jiang Wang, Guodong Zhao, Xiangzheng Cui, Yili Zhang, Tianle Zhang, Zhuo Xiong, Junying Zhang
Summary: Fly ash from municipal solid waste incineration (MSWI) is classified as hazardous waste due to its high content of heavy metals, dioxins, and other hazardous substances. This study investigated the physical and chemical properties, enrichment pattern, fugacity pattern, and leaching toxicity of four types of MSWI fly ash. The results showed that the content and distribution of heavy metals were influenced by particle size and the injection of CaO.
Review
Environmental Sciences
Shunda Lin, Xuguang Jiang, Yimeng Zhao, Jianhua Yan
Summary: This study reviewed the disposal of municipal solid waste incinerator fly ash, summarized the technologies for handling heavy metals and organic pollutants, and proposed directions for future research, providing suggestions for the effective and safe disposal of MSWI FA in the future.
ENVIRONMENTAL POLLUTION
(2022)
Article
Construction & Building Technology
Xu Han, Peng Zhang, Yuanxun Zheng, Juan Wang
Summary: The geopolymer technique shows promise for the treatment of municipal solid waste incineration fly ash (MSWIFA). This study investigated the utilization of MSWIFA through geopolymerization process. Results showed that the addition of MSWIFA increased the flowability of geopolymer composites but decreased their compressive and splitting tensile strength. However, a small amount of MSWIFA accelerated the early strength development. The addition of MSWIFA also affected the microstructure of geopolymers.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Environmental
Junde Qin, Yunhui Zhang, Stephan Heberlein, Grzegorz Lisak, Yaolin Yi
Summary: Slagging-gasification is a technology for municipal solid waste treatment that can produce valuable syngas and generate reusable by-products. Gasification fly ash (GFA) is the only hazardous residue that needs landfilling. In order to explore potential recycling methods and maximize recycling efficiency, the detailed physicochemical properties of GFA are crucial. This study conducted a comprehensive characterization of GFA samples and compared the results with incineration fly ash (IFA) samples. The results showed higher levels of heavy metals in GFA, especially lead and zinc, compared to IFA.
Article
Chemistry, Physical
Yuxuan Zeng, Guoxing Chen, Qianyun Bai, Li Wang, Renbing Wu, Xin Tu
Summary: This study investigates the plasma-enhanced catalytic biogas reforming process for hydrogen-rich syngas production using a Ni-K/Al2O3 catalyst in a tabular dielectric barrier discharge non-thermal plasma reactor. Different reaction modes, including plasma catalysis, plasma alone, and catalysis alone, are compared to understand the synergy at elevated temperatures. The combination of Ni-K/Al2O3 and plasma shows temperature-dependent and varied synergistic effects. The results demonstrate that the plasma catalysis achieves the maximum conversions of CH4 and CO2 at 160 degrees C, while increasing the temperature enhances the H2/CO ratio.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Danhua Mei, Shiyun Liu, Jale Yanik, Gartzen Lopez, Martin Olazar, Zhi Fang, Xin Tu
Summary: This study proposes a hybrid plasma-catalytic system for steam reforming of tar compounds over honeycomb-based catalysts in a gliding arc discharge (GAD) reactor. The presence of Ni/γ-Al2O3 gives the best performance with high conversions of toluene and naphthalene, and yields of H2 and CO while inhibiting the formation of byproducts. Characterization of the used catalyst shows strong carbon resistance and excellent stability of the honeycomb material coated with Ni/γ-Al2O3.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Environmental
Yaolin Wang, Yanzhen Chen, Jonathan Harding, Hongyuan He, Annemie Bogaerts, Xin Tu
Summary: A promising plasma process for the single-step conversion of methane and carbon dioxide into liquid fuels and chemicals at ambient pressure and room temperature is reported. The distribution of liquid products can be tailored by tuning the reaction conditions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Mingxing Cheng, Dinesh Bhalothia, Wei Yeh, Amisha Beniwal, Che Yan, Kuan-Wen Wang, Po-Chun Chen, Xin Tu, Tsan-Yao Chen
Summary: In this study, a multi-metallic nanocatalyst was developed to improve the oxygen reduction reaction (ORR) performance of fuel cells. By optimizing the structure of the catalyst, the ORR activity was significantly enhanced, achieving high performance with low platinum loading and high utilization.
Article
Engineering, Environmental
Li Wang, Yuezhao Wang, Linhui Fan, Hongli Xu, Bowen Liu, Jiaren Zhang, Yimin Zhu, Xin Tu
Summary: In this study, the plasma-catalytic conversion of CH4 and CO2 into high-value alcohols, with methanol as the main product, was achieved using Cu-based catalysts. By controlling the support material, calcination temperature, and copper loading, the selectivity of alcohols was significantly improved. The results provide valuable insights for designing efficient catalysts to tune the production of alcohols through the single-step plasma-catalytic conversion of CH4 and CO2.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Bin Xu, Jianjun Xie, Nantao Wang, Yanqin Huang, Huacai Liu, Xiuli Yin, Chuangzhi Wu, Xin Tu
Summary: Steam reforming of toluene was conducted in a DBD plasma reactor with Ni/γ-Al2O3 catalysts. The study investigated the effects of reaction temperature, catalyst calcination temperature, and permittivity of packing materials on the reaction performance and synergistic effect of plasma catalysis. The results showed that toluene conversion initially decreased and then increased with temperature, achieving a high conversion rate of 87.1% at 450°C. Catalysts prepared at lower calcination temperatures or with higher permittivity packing materials exhibited better performance due to larger Ni surface area and higher surface discharge. The study highlighted the potential of this approach for sustainable hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Guangyi Zhang, Gui Chen, Haomin Huang, Yexia Qin, Mingli Fu, Xin Tu, Daiqi Ye, Junliang Wu
Summary: In this study, a coaxial DBD reactor packed with gamma-MnO2 and CeO2 was used for methanol oxidation. CeO2 showed better performance with higher methanol conversion and CO2 selectivity compared to gamma-MnO2. Catalyst characterization revealed that CeO2 had more active oxygen species and adsorbed more methanol, resulting in higher catalytic activity. In addition, CeO2 produced more reactive oxygen species from ozone decomposition and accumulated less intermediate formate during methanol oxidation. Overall, CeO2 was found to be a more effective catalyst than gamma-MnO2 in the plasma catalysis system for methanol oxidation.
Article
Chemistry, Multidisciplinary
Lina Liu, Jing Dai, Sonali Das, Yaolin Wang, Han Yu, Shibo Xi, Zhikun Zhang, Xin Tu
Summary: A hybrid DBD plasma-catalytic system was developed for the low-temperature CO2 reforming of toluene, where the Ni4Fe1-R catalyst exhibited the highest activity and stability. The plasma-catalytic system showed promising results in promoting the CRT reaction by generating synergy between DBD plasma and the catalyst. In situ FTIR spectroscopy and comprehensive catalyst characterization were used to elucidate the reaction mechanism and plasma-catalyst interfacial effect.
Article
Engineering, Environmental
Xiaomai Chen, Xuefeng Shi, Peirong Chen, Bowen Liu, Meiyin Liu, Longwen Chen, Daiqi Ye, Xin Tu, Wei Fan, Junliang Wu
Summary: In this study, Pd nanoparticles confined within silicalite-1 zeolites (Pd@S-1) were demonstrated to be highly active and stable catalysts for methane oxidation. The introduction of Ce further improved the activity by promoting the formation of oxygen vacancies and inhibiting the transformation of the active PdO phase. The bimetallic PdCe0.4@S-1 catalyst showed exceptional outstanding activity and durability in complete methane oxidation, even in the presence of water vapor.
ACS ENVIRONMENTAL AU
(2023)
Review
Engineering, Environmental
Guoxing Chen, Xiao Yu, Kostya (Ken) Ostrikov, Bowen Liu, Jonathan Harding, Gert Homm, Heng Guo, Stephan Andreas Schunk, Ying Zhou, Xin Tu, Anke Weidenkaff
Summary: This article critically examines recent advances in methane pyrolysis, highlighting efforts to bridge the gap between laboratory research and industrial applications, and discusses opportunities and challenges for translation research towards commercial production of clean hydrogen.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Yuxuan Zeng, Guoxing Chen, Bowen Liu, Hao Zhang, Xin Tu
Summary: In this study, the hydrogenation of CO2 over M/SiO2 and M/Al2O3 catalysts was investigated at different temperatures. The results showed that the coupling of catalysts with plasma demonstrated better reaction efficiency than thermal catalysis and plasma alone modes.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Dengke Xi, Xinyi Lv, Ziwei Huang, Xu Du, Rusen Zhou, Xianhui Zhang, Size Yang, Xin Tu
Summary: This study demonstrates a sustainable plasma electrolysis process for converting protein-rich waste into high-performance cleaner energy. The results show that the process can effectively convert protein-rich foods into liquid products with a high heating value.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Energy & Fuels
Yuxuan Zeng, Guoxing Chen, Jianqiao Wang, Rusen Zhou, Yifei Sun, Anke Weidenkaff, Boxiong Shen, Xin Tu
Summary: Biogas reforming for hydrogen production was achieved using K-promoted Ni/Al2O3 catalysts in a tabular dielectric barrier discharge system. The catalyst with 2 wt% K loading exhibited the best reforming performance and highest energy efficiency, enhancing H2 production while suppressing CO formation.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Energy & Fuels
Xinbo Zhu, Haiping Xiong, Jin Liu, Yuting Gan, Zitan Xu, Chunlin Zhou, Yaolin Wang, Ye Jiang, Xin Tu
Summary: In this study, Fe-Mn based ternary catalysts were evaluated for the plasma-catalytic oxidation of ethylene oxide. The addition of transition metal dopants significantly improved the catalyst performance. The presence of water vapor improved the reaction performance, but high humidity reduced the performance.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Energy & Fuels
Xinbo Zhu, Jin Liu, Xueli Hu, Zijian Zhou, Xinbao Li, Weitao Wang, Renbing Wu, Xin Tu
Summary: In this study, the effect of different supports on the plasma-catalytic synthesis of ammonia over Ru-based catalysts in a dielectric barrier discharge reactor was investigated. The presence of Ru-based catalysts significantly enhanced the NH3 production and energy yield. Experimental and analytical methods were used to explore the structure-performance relationships between the catalysts and NH3 synthesis.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Energy & Fuels
Yingna Du, Chen Huang, Wei Jiang, Qiangwei Yan, Yongfei Li, Gang Chen
Summary: In this study, anionic surfactants modified hydrotalcite was used as a flow improver for crude oil under low-temperature conditions. The modified hydrotalcite showed a significant viscosity reduction effect on crude oil. The mechanism of the modified hydrotalcite on viscosity and pour point of crude oil was explored through characterization and analysis of the modified hydrotalcite and oil samples.
Article
Energy & Fuels
Mohammad Saeid Rostami, Mohammad Mehdi Khodaei
Summary: In this study, a hybrid structure, MIL-53(Al)@MWCNT, was synthesized by combining MIL-53(Al) particles and -COOH functionalized multi-walled carbon nanotube (MWCNT). The hybrid structure was then embedded in a polyethersulfone (PES) polymer matrix to prepare a mixed matrix membrane (MMM) for CO2/CH4 and CO2/N2 separation. The addition of MWCNTs prevented MIL-53(Al) aggregation, improved membrane mechanical properties, and enhanced gas separation efficiency.
Article
Energy & Fuels
Yunlong Li, Desheng Huang, Xiaomeng Dong, Daoyong Yang
Summary: This study develops theoretical and experimental techniques to determine the phase behavior and physical properties of DME/flue gas/water/heavy oil systems. Eight constant composition expansion (CCE) tests are conducted to obtain new experimental data. A thermodynamic model is used to accurately predict saturation pressure and swelling factors, as well as the phase boundaries of N2/heavy oil systems and DME/CO2/heavy oil systems, with high accuracy.
Article
Energy & Fuels
Morteza Afkhamipour, Ebad Seifi, Arash Esmaeili, Mohammad Shamsi, Tohid N. Borhani
Summary: Non-conventional amines are being researched worldwide to overcome the limitations of traditional amines like MEA and MDEA. Adequate process and thermodynamic models are crucial for understanding the applicability and performance of these amines in CO2 absorption, but studies on process modeling for these amines are limited. This study used rate-based modeling and Deshmukh-Mather method to model CO2 absorption by DETA solution in a packed column, validated the model with experimental data, and conducted a sensitivity analysis of mass transfer correlations. The study also compared the CO2 absorption efficiency of DETA solution with an ionic solvent [bmim]-[PF6] and highlighted the importance of finding optimum operational parameters for maximum absorption efficiency.
Article
Energy & Fuels
Arastoo Abdi, Mohamad Awarke, M. Reza Malayeri, Masoud Riazi
Summary: The utilization of smart water in EOR operations has gained attention, but more research is needed to understand the complex mechanisms involved. This study investigated the interfacial tension between smart water and crude oil, considering factors such as salt, pH, asphaltene type, and aged smart water. The results revealed that the hydration of ions in smart water plays a key role in its efficacy, with acidic and basic asphaltene acting as intrinsic surfactants. The pH also influenced the interfacial tension, and the aged smart water's interaction with crude oil depended on asphaltene type, salt, and salinity.
Article
Energy & Fuels
Dongao Zhu, Kun Zhu, Lixian Xu, Haiyan Huang, Jing He, Wenshuai Zhu, Huaming Li, Wei Jiang
Summary: In this study, cobalt-based metal-organic frameworks (Co-based MOFs) were used as supports and co-catalysts to confine the NHPI catalyst, solving the leaching issue. The NHPI@Co-MOF with carboxyl groups exhibited stronger acidity and facilitated the generation of active oxygen radicals O2•, resulting in enhanced catalytic activity. This research provides valuable insights into the selection of suitable organic linkers and broadens the research horizon of MOF hybrids in efficient oxidative desulfurization (ODS) applications.
Article
Energy & Fuels
Edwin G. Hoyos, Gloria Amo-Duodu, U. Gulsum Kiral, Laura Vargas-Estrada, Raquel Lebrero, Rail Munoz
Summary: This study investigated the impact of carbon-coated zero-valent nanoparticle concentration on photosynthetic biogas upgrading. The addition of nanoparticles significantly increased microalgae productivity and enhanced nitrogen and phosphorus assimilation. The presence of nanoparticles also improved the quality of biomethane produced.
Article
Energy & Fuels
Yao Xiao, Asma Leghari, Linfeng Liu, Fangchao Yu, Ming Gao, Lu Ding, Yu Yang, Xueli Chen, Xiaoyu Yan, Fuchen Wang
Summary: Iron is added as a flocculant in wastewater treatment and the hydrothermal carbonization (HTC) of sludge produces wastewater containing Fe. This study investigates the effect of aqueous phase (AP) recycling on hydrochar properties, iron evolution and environmental assessment during HTC of sludge. The results show that AP recycling process improves the dewatering performance of hydrochar and facilitates the recovery of Fe from the liquid phase.
Article
Energy & Fuels
He Liang, Tao Wang, Zhenmin Luo, Jianliang Yu, Weizhai Yi, Fangming Cheng, Jingyu Zhao, Xingqing Yan, Jun Deng, Jihao Shi
Summary: This study investigated the influence of inhibitors (carbon dioxide, nitrogen, and heptafluoropropane) on the lower flammability limit of hydrogen and determined the critical inhibitory concentration needed for complete suppression. The impact of inhibitors on explosive characteristics was evaluated, and the inhibitory mechanism was analyzed with chemical kinetics. The results showed that with the increase of inhibitor quantity, the lower flammability limit of hydrogen also increased. The research findings can contribute to the safe utilization of hydrogen energy.
Article
Energy & Fuels
Zonghui Liu, Zhongze Zhang, Yali Zhou, Ziling Wang, Mingyang Du, Zhe Wen, Bing Yan, Qingxiang Ma, Na Liu, Bing Xue
Summary: In this study, high-performance solid catalysts based on phosphotungstic acid (HPW) supported on Zr-SBA-15 were synthesized and evaluated for the one-pot conversion of furfural (FUR) to γ-valerolactone (GVL). The catalysts were characterized using various techniques, and the ratio of HPW and Zr was found to significantly affect the selectivity of GVL. The HPW/Zr-SBA-15 (2-4-15) catalyst exhibited the highest GVL yield (83%) under optimized reaction conditions, and it was determined that a balance between Bronsted acid sites (BAS) and Lewis acid sites (LAS) was crucial for achieving higher catalytic performance. The reaction parameters and catalyst stability were also investigated.
Article
Energy & Fuels
Michael Stoehr, Stephan Ruoff, Bastian Rauch, Wolfgang Meier, Patrick Le Clercq
Summary: As part of the global energy transition, an experimental study was conducted to understand the effects of different fuel properties on droplet vaporization for various conventional and alternative fuels. The study utilized a flow channel to measure the evolution of droplet diameters over time and distance. The results revealed the temperature-dependent effects of physical properties, such as boiling point, liquid density, and enthalpy of vaporization, and showed the complex interactions of preferential vaporization and temperature-dependent influences of physical properties for multi-component fuels.
Article
Energy & Fuels
Yuan Zhuang, Ruikang Wu, Xinyan Wang, Rui Zhai, Changyong Gao
Summary: Through experimental validation and optimization of the chemical kinetic model, it was found that methanol can accelerate the oxidation reaction of ammonia, and methanol can be rapidly oxidized at high concentration. HO2 was found to generate a significant amount of OH radicals, facilitating the oxidation of methanol and ammonia. Rating: 7.5/10.
Article
Energy & Fuels
Radwan M. EL-Zohairy, Ahmed S. Attia, A. S. Huzayyin, Ahmed I. EL-Seesy
Summary: This paper presents a lab-scale experimental study on the impact of diethyl ether (DEE) as an additive to waste cooking oil biodiesel with Jet A-1 on combustion and emission features of a swirl-stabilized premixed flame. The addition of DEE to biodiesel significantly affects the flame temperature distribution and emissions. The W20D20 blend of DEE, biodiesel, and Jet A-1 shows similar flame temperature distribution to Jet A-1 and significantly reduces UHC, CO, and NOx emissions compared to Jet A-1.
Article
Energy & Fuels
Jiang Bian, Ziyuan Zhao, Yang Liu, Ran Cheng, Xuerui Zang, Xuewen Cao
Summary: This study presents a novel method for ammonia separation using supersonic flow and develops a mathematical model to investigate the condensation phenomenon. The results demonstrate that the L-P nucleation model accurately characterizes the nucleation process of ammonia at low temperatures. Numerical simulations also show that increasing pressure and concentration can enhance ammonia condensation efficiency.
Article
Energy & Fuels
Shiyuan Pan, Xiaodan Shi, Beibei Dong, Jan Skvaril, Haoran Zhang, Yongtu Liang, Hailong Li
Summary: Integrating CO2 capture with biomass-fired combined heat and power (bio-CHP) plants is a promising method for achieving negative emissions. This study develops a reliable data-driven model based on the Transformer architecture to predict the flowrate and CO2 concentration of flue gas in real time. The model validation shows high prediction accuracy, and the potential impact of meteorological parameters on model accuracy is assessed. The results demonstrate that the Transformer model outperforms other models and using near-infrared spectral data as input features improves the prediction accuracy.
