Article
Chemistry, Physical
Yuanfei Ai, Shu-Chi Wu, Fan Zhang, Xiaowei Zhang, Renjie Li, Yingying Lan, Lejuan Cai, Wenlong Wang
Summary: This study explores the factors affecting the performance of aluminum-sulfur batteries and improves the performance by adjusting the voltage window and developing catalyst materials. The results show that the catalyst effectively suppresses the shuttle effect of polysulfides and promotes the redox reaction of sulfides.
ENERGY STORAGE MATERIALS
(2022)
Review
Energy & Fuels
Siti H. Osman, S. K. Kamarudin, Nabila A. Karim, Sahriah Basri
Summary: This article discusses the application of graphene in fuel cell technology, introduces its electrochemical characteristics, and summarizes the research trends and economic aspects of graphene. It also discusses the potential benefits and future development of enhancing fuel cell system performance using graphene.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Ali Abdelhafiz, Ji Il Choi, Bote Zhao, Jinwon Cho, Yong Ding, Luke Soule, Seung Soon Jang, Meilin Liu, Faisal M. Alamgir
Summary: In the field of active catalyst design, there has been a lack of emphasis on the rational design of catalyst systems with prolonged stability. This study investigates the degradation mechanism of a catalyst system for the oxygen reduction reaction and proposes a hybrid nanoarchitecture design with extended stability.
Review
Engineering, Environmental
Somayeh Gooneh-Farahani, Mansoor Anbia
Summary: The amount of sulfur in crude oil is a global concern due to its negative effects on catalysts, refinery equipment, and the environment. The hydrodesulfurization process is commonly used to remove sulfur, but new technologies are being developed to address its technical challenges and limitations. However, the lack of knowledge regarding the advantages and disadvantages of these complementary methods has hindered their large-scale implementation. Therefore, articles that provide a comprehensive understanding of each technique are crucial for the industry's development.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Applied
Zhiqiu Hu, Shuai Xie, Yue Guo, Yadong Ye, Jing Zhang, Song Jin, Hengxing Ji
Summary: Al-S batteries show promise as next generation energy storage devices, but suffer from poor reversibility due to slow kinetic processes. The use of CoNG as an electrochemical catalyst in the sulfur cathode significantly reduces voltage hysteresis and improves sulfur utilization, leading to enhanced electrochemical performance.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Physical
Heeyeon Kim, Guk-hyeon Kwon, Seong Ok Han, Alex Robertson
Summary: Developing cost-effective electrocatalysts for proton electrolyte membrane fuel cell electrodes has proven challenging due to the difficulty in finding inexpensive alternatives to platinum with catalytic activity. This study reveals that a graphene-nanocellulose composite effectively reduces the loss of active area in ultrafine nanoparticle catalysts by preventing Ostwald ripening and dissolution.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Environmental Sciences
Nor Atiq Syakila Mohd Nazmi, Fazira Ilyana Abdul Razak, Wan Nur Aini Wan Mokhtar, Mohamad Nasir Mohamad Ibrahim, Farook Adam, NoorFatimah Yahaya, Salmiah Jamal Mat Rosid, Nurasmat Mohd Shukri, Wan Nazwanie Wan Abdullah
Summary: The study focused on optimizing the desulfurization efficiency of fuel by introducing cobalt oxide into an iron-based catalyst, resulting in a highly efficient production technology for low-sulfur diesel.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Kishant Kumar, Anand Bharti, Ajay Kumar, Surya K. Ghosh, Amit Kumar
Summary: Deep eutectic solvents (DES) are a new type of green solvent that are easy to synthesize and have low volatility and non-toxicity. They have emerged as efficient extractants for denitrogenation. This study used molecular dynamics simulation to investigate the feasibility of using glyceline as an extractant to remove nitrogen impurities from liquid fuel. The results showed that glyceline had a strong affinity for quinoline and pyridine, while chloride-ion had a strong interaction with indole and pyrrole.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Multidisciplinary
Santosh K. Singh, Kotaro Takeyasu, Kaito Homma, Shigeharu Ito, Takashi Morinaga, Yuto Endo, Moeko Furukawa, Toshiyuki Mori, Hirohito Ogasawara, Junji Nakamura
Summary: The activity of pyridinic-nitrogen-doped graphene for the oxygen reduction reaction (ORR) decreases under acidic conditions. By increasing proton conductivity in the hydrophobic cavity, the deactivation can be prevented.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Energy & Fuels
Hawraa Srour, Elodie Devers, Adrien Mekki-Berrada, Joumana Toufaily, Tayssir Hamieh, Catherine Batiot-Dupeyrat, Ludovic Pinard
Summary: This study compared the regeneration efficiency of an aged industrial hydrodesulfurization catalyst using conventional thermal oxidation and non-thermal plasma technology. Non-thermal plasma treatment showed promising results in fully regenerating the catalyst at lower temperatures and removing coke compared to traditional thermal treatment. The use of low temperature-assisted non-thermal plasma for HDS catalyst regeneration is a potential alternative to thermal combustion.
Article
Environmental Sciences
Jing Gao, Yang Cao, Tao Wu, Yujiang Li
Summary: In this study, roasted spent HDS ash (sHDSc-A) was used to catalytically pyrolyze oily spent HDS catalysts (sHDSc) to enhance the yield and quality of pyrolysis oil. sHDSc-A promoted the decomposition of coke in oily sHDSc, leading to increased oil and gas recovery. Additionally, sHDSc-A improved the quality of the pyrolysis oil by inhibiting alkane aromatization, increasing the content of long-chain alkanes, and reducing heteroatomic compounds. Metal oxides in sHDSc-A, such as Al2O3, Fe2O3, MoO3, and NiO, played a significant role in the catalytic process. This study demonstrates the potential of recycling oily spent HDS catalysts and provides a waste-treatment-waste strategy for energy recovery and waste reuse.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Su-Jeong Bak, Sun- Kim, Su-yeong Lim, Taehyo Kim, Se-Hun Kwon, Duck Hyun Lee
Summary: The study demonstrated highly efficient oxygen reduction catalysts composed of uniform Pt nanoparticles on small, reduced graphene oxides (srGO). The catalysts exhibited efficient surface reactions, large surface areas, high metal dispersions, and excellent oxygen reduction performance. Detailed investigations suggested that the chemical functionality and electrical conductivity greatly influenced the enhanced oxygen reduction efficiency of the catalysts.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Chemistry, Applied
Kaixuan Yang, Xiao Chen, Zongxuan Bai, Changhai Liang
Summary: This study successfully prepared a series of intermetallic noble metal silicides supported by carbon nanotubes catalysts using chemical vapor deposition, which showed high efficiency and long-term stability in sulfur removal, especially with excellent stability for 4,6-DMDBT. These sulfur-tolerant noble metal silicides have the potential to be promising catalysts for the ultra-deep HDS of fossil fuel.
Article
Green & Sustainable Science & Technology
Arife Uzundurukan, Elif Seda Akca, Yagmur Budak, Yilser Devrim
Summary: In this study, carbon nanotube-graphene supported PtAu, Au and Pt catalysts were prepared and tested in a liquid-fed NaBH4/H2O2 fuel cell. The PtAu/CNT-G catalyst showed enhanced performance with a maximum power density of 139 mW/cm(2) at 50 degrees Celsius.
Review
Chemistry, Physical
Iqrash Shafiq, Sumeer Shafique, Parveen Akhter, Wenshu Yang, Murid Hussain
Summary: Hydrodesulfurization is essential in modern refineries to reduce sulfur-containing compounds for cleaner end-products. This review outlines factors influencing catalyst performance for sulfur removal from transportation fuels, specifically diesel. It discusses recent advancements in catalyst development for ultra-low sulfur fuels, aiming to meet future sulfur regulations.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2022)
Article
Energy & Fuels
Raziyeh Ahmadi, Mehdi Ardjmand, Alimorad Rashidi, Mehdi Rafizadeh
Summary: In this study, waste jute was successfully synthesized and fabricated as a novel nanoadsorbent, which showed a unique micro-mesoporous structure and excellent adsorption capabilities. Through physicochemical characterization and experimental results, the potential application of this nanoadsorbent for gas adsorption on a large scale was confirmed.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Chemistry, Physical
Ashkan Maleki, Zeinab Hosseini-Dastgerdi, Alimorad Rashidi
Summary: This study investigates the potential use of silica and alumina polyacrylamide as inhibitors for wax crystallization and deposition in crude oils. The results demonstrate that nanocomposites effectively reduce wax deposition and improve the flowability of heavy crude oil. The presence of nanocomposites delays the wax crystallization process and causes morphological changes in the wax crystals.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Saeed Fakhraie, Hamid Reza Rajabi, Alimorad Rashidi
Summary: In this study, novel core-shell MOFs were designed to improve the selective separation of H2S and CO2. The MU nanocrystals exhibited high adsorption capacity and selectivity due to optimized pores diameter and additional open metal sites.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Saeed Hasannia, Mohammad Kazemeini, Abdolvahab Seif, Alimorad Rashidi
Summary: In this study, CoW/X materials were used as catalysts for the oxidative desulfurization (ODS) of DBT in a model fuel. The results showed that the CoW (15)/CNT catalyst achieved high desulfurization efficiency under milder operating conditions, outperforming a previously reported catalyst. Experimental and theoretical investigations were conducted to better understand the characteristics and reaction mechanisms of the catalyst.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Ziyang Zhou, Abdolvahab Seif, Sepideh Pourhashem, Jizhou Duan, Alimorad Rashidi, Majid Mirzaee, Pier Luigi Silvestrelli, Baorong Hou
Summary: In this research, the aim is to create a composite epoxy coating with enhanced corrosion and fouling resistance. Two strategies are used: modification with APTES and PDMS, as well as loading APTES-modified hybrids of graphene quantum dots and metal-organic framework (F-GQDs@MOF). The results show that the composite coating exhibits high water contact angle, low surface roughness, strong adhesion strength, superior electrochemical resistance, and minimal corrosion products and blisters. It also has antibacterial activity and low marine organism attachment.
APPLIED MATERIALS TODAY
(2023)
Article
Engineering, Civil
Mehran Shahpari, Alireza Khaloo, Alimorad Rashidi, Mohammad Saberian, Jie Li
Summary: The aim of this study is to improve conventional cement by using hybrid nanomaterials (carbon nanotubes and nano-silica) as partial replacements, resulting in a higher strength-to-weight ratio concrete. Through experimental and analytical tests, three types of carbon nanotubes and four types of nano-silica were evaluated for their mechanical properties in concrete. Test results show that by using 0.1% carbon nanotubes + 1.5% nano-silica, the compressive strength improved by 125%, and by using 0.5% carbon nanotubes + 1.0% nano-silica, the tensile strength improved by 110%. Scanning electron microscopy (SEM) was used to visualize the strength-enhancement mechanism of the novel concrete. The use of this nano-blended cement allows for the creation of high-performance concretes without requiring additional cement or concrete ingredients, resulting in a lighter and more cost-effective structure compared to conventional concrete.
Article
Construction & Building Technology
Ziyang Zhou, Abdolvahab Seif, Sepideh Pourhashem, Jizhou Duan, Alimorad Rashidi, Pier Luigi Silvestrelli, Xiaohong Ji, Majid Mirzaee, Baorong Hou
Summary: In this study, a ZIF-8 metal-organic framework decorated with silane moieties was used to enhance the properties of epoxy coatings modified with polydimethylsiloxane. The modified coatings exhibited improved anti-corrosion, anti-bacterial, and anti-fouling properties. The combination of graphene oxide nanosheets and silane-functionalized ZIF-8 resulted in a super-hydrophobic coating with high pull-off adhesion strength and increased impedance modulus. The coating also showed advanced resistance against bacterial attachment and fouling in marine environments.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Environmental Sciences
Mohammad Reza Nazarpour Kalaei, Amir Heydarinasab, Alimorad Rashidi, Mahshad Alaei
Summary: This study synthesized Mxene and functionalized Mxene nanoparticles, and fabricated Mxene coated stainless steel meshes using dip-coating method to investigate their capability in oil-water emulsion separation. The Mxene fabricated mesh showed good resistance to corrosive solutions and high efficiency in harsh medium condition. Characterization tests confirmed the effectiveness of the Mxene coating and its application as a highly effective mesh for oil-water separation.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Environmental Sciences
Raziyeh Ahmadi, Omid Arjmand, Neda Haj Mohammad Hossein Tehrani, Atiyye Ghorbani, Alimorad Rashidi, Mehdi D. Esrafili, Hadi Hamyali
Summary: In this study, amine impregnated activated carbon was synthesized and used as an effective adsorbent for gasoline vapor uptake. The physiochemical characterization of the synthesized sorbents showed high surface area and unique micro-meso pore structure, which significantly influenced the gasoline sorption capacity. The prepared sorbents exhibited high durability and maintained a high uptake capacity after multiple cycles.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Chemistry, Applied
Hamid Shirkhanloo, Mohsen Habibnia, Alimorad Rashidi, Ali Faghihi Zarandi, Mostafa Dehghani Mobarake
Summary: A rapid and efficient method based on a novel nitrogen-doped porous graphene nanostructure (NDPG) was developed for the speciation of mercury in water and human blood samples. The cloud point assisted dispersive ionic liquid-micro solid-phase extraction method was used to separate mercury in samples, and the UV-microwave accessory was utilized to convert organic mercury to inorganic mercury for determination. Organic mercury content was calculated by subtracting inorganic and total mercury contents.
Article
Engineering, Chemical
Sonia Mir, Abbas Naderifar, Alimorad Rashidi, Hossein Mahdavi, Mehdi D. Esrafili, Somayeh Gholipour, Mahir Gulen
Summary: Efforts are being made to improve the efficiency of water-oil separation by enhancing the performance of g-C3N4 with the help of Zn(OH)(2). This study investigates the effect of porosity and surface defects on the removal of oil from oil-water mixtures using g-C3N4/Zn(OH)(2) nanocomposites with varying amounts of Zn(OH)(2). The results highlight the significant impact of oxygen-containing groups in the nanocomposite on the wettability behavior and water-removing separation performance. The g-C3N4/Zn(OH)(2) coated mesh demonstrates potential as a material for water-oil separation due to its higher adsorption energy for water compared to oil molecules.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Maryam Soleymani, Ramin Karimzadeh, Alimorad Rashidi, Ali Eslamimanesh
Summary: The aim of this research is to evaluate the effects of various parameters on the synthesis of a Fe-Mo catalyst supported on mesoporous activated carbon. Mesoporous carbon was prepared from grape branches and oil palm trunks, and optimum values of activation time and drying period were determined. The synthesized catalyst with an efficient support exhibited higher sulfur conversion efficiency for heavy naphtha hydrodesulfurization compared to a catalyst with a commercial support.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Multidisciplinary Sciences
Soheila Sharafinia, Alimorad Rashidi, Behnam Babaei, Yasin Orooji
Summary: This study compared the differences in surface chemistry and adsorptive characteristics between coordinate organic polymer (Cop-150) and nanoporous carbon (NPC), and found that the new NPC can effectively remove phenolic pollutants. The experimental results showed that Cop-150 had an adsorption capacity of 50 mg/g under the conditions of pH 4.638, contact time of 19.695 min, temperature of 56.8°C, and initial phenol concentration of 6.902 mg/L, while NPC had an adsorption capacity of 500 mg/g under the conditions of pH 7.042, contact time of 15.738 min, temperature of 28.3°C, and initial phenol concentration of 49.252 mg/L.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Environmental
Neda Haj Mohammad Hossein Tehrani, Masood S. Alivand, Ali Kamali, Mehdi D. Esrafili, Marzieh Shafiei-Alavijeh, Raziyeh Ahmadi, Mohammad Samipoorgiri, Omid Tavakoli, Alimorad Rashidi
Summary: A novel seed-mediated synthesis strategy using a low-cost and heteroatom-rich carbon structure was used to prepare hierarchical micro-mesoporous MIL-101(Cr), which exhibited significantly enhanced adsorption efficiency for benzene and toluene due to its large surface area and high pore volume.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Temurali Kholmurodov, Arash Tajik, Abdolreza Farhadian, Oybek Mirzayev, Pooya Tahay, Alexey V. Vakhin, Alimorad Rashidi
Summary: This study aims to fill the research gap of using aromatic ligands in catalyst synthesis for catalytic aquathermolysis of heavy oil. The developed oil-soluble catalyst (Ni-OSC) using catechol as a novel ligand effectively interacts with heavy oil fractions, reducing the content of resin and asphaltene and increasing the amounts of saturated and aromatic hydrocarbons. GC-MS analysis revealed an increase in low molecular weight hydrocarbons and a higher concentration of alkanes and aromatic hydrocarbons in the presence of Ni-OSC, improving the quality and recovery of heavy oil.
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.