Article
Chemistry, Applied
Nushin Ettekali, Somaiyeh Allahyari, Nader Rahemi, Fahime Abedini
Summary: Micro-mesoporous SiO2 aerogel supported by MoO3 nanoparticles was used as a catalyst and adsorbent for the oxidation of dibenzothiophene (DBT), leading to enhanced catalytic activity and successful desulfurization of Iranian gasoil with noticeable reduction in sulfur-containing components. The characterization of the catalysts indicated uniform dispersion of MoO3 nanoparticles on the aerogel surface, with maintained crystalline structure despite decreased porosity in spent catalyst due to adsorption of DBT sulfones.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Fariba Mohammadi Nejati, Shahrokh Shahhosseini, Mehran Rezaee
Summary: Researchers developed a sandwich-type polyoxometalate catalyst immobilized on magnetic graphene oxide, which showed high efficiency in removing sulfur compounds under suitable conditions. The catalyst also demonstrated good reusability.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Juncong Zou, Yan Lin, Shaohua Wu, Mengjie Wu, Chunping Yang
Summary: The developed catalyst Mo/KIT-6-Ti shows excellent oxidative desulfurization performance, achieving efficient conversion of sulfides without the need for organic solvents, demonstrating great potential for practical fuel applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Applied
Yue Du, Wenxue Chen, Zhiyi Zhong, Lina Zhou, Yisi Liu, Lun Yang, Dongbin Xiong, Kai Wang
Summary: The preparation of a 3D meso/macroporous Mo/ZrO2 composite derived from an ionic liquid using a dual-template self-assembling process has shown promising results in the production of sulfur-free diesel fuel.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Materials Science, Ceramics
Esneyder Puello-Polo, Noemi R. Checca-Huaman, Elvis O. Lopez, Carlos A. T. Toloza, Franklin J. Mendez
Summary: The impact of the synthesis method on the properties of the Al2O3-Ga2O3 sample was investigated. Ga loading resulted in an increase in surface area and pore volume, but a decrease in pore size. XRD analysis confirmed the formation of γ-Al2O3 with Ga atoms incorporated into the structure. The adsorption affinity of the adsorbent was strongest for BT and weakest for DBT.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Jilei Liang, Mengwei Fan, Wenjie Wu, Mengmeng Wu, Wangshui Cai, Gao Xinxing, Tingting Huang, Haiyun Rui
Summary: This study demonstrates the successful encapsulation of sandwich cobalt-tungsten polyoxomolybdate in a mesoporous metal-organic framework, resulting in excellent catalytic activity and recyclability.
Article
Materials Science, Ceramics
Josefa Ortiz-Bustos, Isabel del Hierro, Yolanda Perez
Summary: The incorporation of iron and sulphate ions on TiO2 nanoparticles improved the catalytic performance, and a multifunctional and visible-light active photocatalyst was designed to remove pollutants from transportation fuels and water. Doping with a low amount of iron enhanced the photocatalytic performance, with the 1.2%S-0.5%Fe-TiO2 photocatalyst showing the highest activity under visible light irradiation. The improved electron charge transfer behavior of this photocatalyst was confirmed by electrochemistry measurements, and the stability and recyclability of the best photocatalyst were evaluated.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
Fatemeh Khademian, Amin Bazyari, Parham Haghighi, Levi T. Thompson
Summary: High-performance surface-silylated titania-silica catalysts prepared by surface silylation method can improve the efficiency of oxidative desulfurization reactions and reduce the accumulation of harmful substances on the catalyst surface.
Article
Nanoscience & Nanotechnology
Ming Zhang, Wanying Liao, Yanchen Wei, Chao Wang, Yujie Fu, Yongkang Gao, Linhua Zhu, Wenshuai Zhu, Huaming Li
Summary: In this study, 3DOM WOx-400 catalysts with abundant oxygen defects and high desulfurization activity were successfully prepared, achieving over 99% aerobic oxidative desulfurization rate within 4 hours. The material showed potential for recycling and efficient desulfurization, providing a feasible route for developing nanoporous materials for fuel desulfurization.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Applied
Hossein Naseri, Golshan Mazloom, Azam Akbari, Farhad Banisharif
Summary: Bimetallic Mo-M (M = Ni, Co, and Zn)/RHY supported catalysts were synthesized for oxidative desulfurization of DBT. Ni negatively influenced Mo dispersion, while Co and Zn improved it. Zn promoter allowed more active Mo species to be exposed, benefiting the ODS reaction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Physical
Armin Raeisi, Alireza Najafi Chermahini, Marzieh Esmaeilzadeh Khabazi, Mohamad Mohsen Momeni, Rafael Luque, Antonio Pineda, Enrique Rodriguez Castellon, Carolina Vargas Fernandez
Summary: This investigation successfully removes sulfur-based compounds by a combination of absorptive and oxidative desulfurization processes using a series of novel Bi-based bifunctional photo electrocatalysts. The results showed that the catalysts had higher efficiency in absorptive desulfurization and better results in oxidative desulfurization. Among the catalysts, photoelectrocatalytic desulfurization performed best in dibenzothiophene removal.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Environmental Sciences
Lemeng Wang, Zhikai Zhao, Wen Wang, Gaoshan Xing, Fang Zeng, Liqiang Qi
Summary: In this study, a novel catalyst V-Cu-Ce-ZSM-5 was explored for simultaneous removal of SO2 and NOx from flue gas, with the addition of graphene oxide (GO) to further enhance its catalytic activity. The results showed that V-Cu-Ce-ZSM-5@GO0.5 exhibited the best performance for SO2 and NOx oxidation at a low temperature of 150 degrees C.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Xingye Zeng, Adeyemo Adesina, Ping Li, Hanlu Wang, Rujin Zhou
Summary: Ti-containing MWW zeolite was prepared and used as a catalyst and adsorbent in an adsorptive-oxidative desulfurization system. The system achieved high conversion rate of DBT and the oxidation products of DBT were removed by Ti-MWW adsorption. The study also investigated the influence of various parameters and the recycling and regeneration performance of Ti-MWW. This work provides valuable information for the construction of solvent-free oxidative desulfurization systems.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Mohanad Jebar Nehab, Farhad Salimi, Akbar Mohammadidoust
Summary: Decreasing sulfur structures and achieving green fuel is an appropriate approach for environmental protection. In this study, a graphitic-carbon-nitride catalyst modified by iron (III) oxide was introduced and used to remove dibenzothiophene (DBT) from model oil and real oils. The catalyst showed a high removal efficiency for DBT in both model oil (91%) and real oils (73%, 83.5%, and 84.7% for gasoline, kerosene, and diesel oil, respectively). Kinetic models were developed to describe the process and a mechanism for converting DBT to DBTO2 was proposed. The catalyst exhibited good performance, reusability for five cycles, and was cost-effective for cleaning liquid fuels.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Energy & Fuels
M. L. S. N. Vishnu Priya, B. Arunraj, N. Rajesh
Summary: A mesoporous carbon material produced from newspaper waste was utilized for desulfurization, showing efficient removal of DBT and good regeneration properties. Characterization techniques confirmed the effectiveness of the mesoporous carbon in the desulfurization process.
Article
Chemistry, Applied
Charitha J. Gamlath, Kuan Yen Lo, Thomas S. H. Leong, Muthupandian Ashokkumar, Gregory J. O. Martin
Summary: This study demonstrates the potential of ultrasound emulsification to form whey protein-enriched double emulsions with minimum food-grade emulsifiers to fortify the protein content of cheese and other food products. The encapsulation loading rate of whey proteins within the double emulsion droplets was investigated in relation to ultrasound parameters and formulation loading rates. The results showed that high encapsulation loading rates can be achieved using ultrasound with comparable oil droplet diameters to native milk fat globules.
FOOD HYDROCOLLOIDS
(2023)
Article
Chemistry, Physical
Aissa Dehane, Slimane Merouani, Oualid Hamdaoui, Kyuichi Yasui, Muthupandian Ashokkumar
Summary: In sonochemistry, acoustic bubbles serve as microreactors for producing hydrogen and oxidants. This study developed a novel semi-empirical method using hydrogen sono-production to determine the number density of micro-bubbles during water sonolysis. The results showed that the number density of bubbles ranged from -108 to -1013 L-1 s-1, depending on the experimental conditions, and the calculation method used. The study also found that the number of active bubbles increased with frequency, but decreased when calculated via the total single-bubble yield, especially at higher frequencies and colder liquid temperatures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Acoustics
Yang Shen, Rachel Pflieger, Weizhong Chen, Muthupandian Ashokkumar
Summary: In our previous study, we proposed a new model for single bubble dynamics that considers the effect of bulk viscosity. In this study, we conducted experiments to test this model using a 30% (v/v) glycerol-water mixture. The results showed that the calculated bubble dynamics were not significantly affected by bulk viscosity under the experimental conditions. However, there was a noticeable delay in the first rebound when bulk viscosity was taken into account. The sonoluminescence intensities were also compared between the two models, but no significant difference was observed, confirming the negligible effect of bulk viscosity in this condition.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Food Science & Technology
Shunyu Yao, Wu Li, Yue Wu, Gregory J. O. Martin, Muthupandian Ashokkumar
Summary: Hempseed protein isolate (HPI) can be improved in functionality, such as solubility, emulsifying, and foaming properties, through ultrasonic-assisted extraction. The enhanced functionality is attributed to the changes in protein structure, including increased hydrophobicity and decreased particle size of protein aggregates. Prolonged high-power ultrasound exposure may negatively affect the functional properties of HPI.
Article
Chemistry, Analytical
Mohammad Niazi, Ava Azizi, Zeynab Khajavi, Milad Sheikh, Salman Taheri, Sasan Radfar, Abdolhamid Alizadeh, Reza Ghanbari
Summary: An ultra-selective and reproductive ratiometric platform was developed for miRNA-18a detection using the ratio of Ru(phen)32+ electrochemiluminescence (ECL) signal and methylene blue (MB) electrochemistry (EC) signal, amplified by toehold-mediated strand displacement (TMSD). Stable DNA nano-clews (NCs) loaded with MB were synthesized through rolling circle amplification reaction. A Ti3C2-based nanocomposite served as a carrier for both Ru(phen)32+ and gold nanoparticles to provide a constant ECL internal reference. The biosensor exhibited high selectivity and accuracy, with a limit of detection of 9 aM and satisfactory results in serum sample detection.
ANALYTICA CHIMICA ACTA
(2023)
Article
Acoustics
Juhyeon Park, Ahreum Min, Jayaraman Theerthagiri, Muthupandian Ashokkumar, Myong Yong Choi
Summary: Acoustic levitation is a unique tool for levitating and processing droplets and particles. In this study, gold and silver nanoparticles were synthesized using acoustic levitation and pulsed laser irradiation. The synthesized nanoparticles showed excellent catalytic behavior.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Acoustics
Yue Wu, Wu Li, Haiyan Zhu, Gregory J. O. Martin, Muthupandian Ashokkumar
Summary: Liquid-liquid interfacial protein adsorption was proposed as a method to inactivate soy trypsin inhibitors. Ultrasound mixing generated the smallest and most uniform emulsion droplets, resulting in the highest adsorption amount and inactivation percentage. The adsorption amount of trypsin inhibitors increased in the presence of vegetable oil and rapidly increased with sonication time. The pathways of interface-induced inactivation differed for different inhibitors. Overall, ultrasound-assisted interfacial adsorption is a rapid and efficient method to inactivate soy trypsin inhibitors.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shunyu Yao, Wu Li, Gregory J. O. Martin, Muthupandian Ashokkumar
Summary: Hempseed protein isolate (HPI) has high nutritional value but poor functionality, which has hindered its food application. This study provides important new information on hempseed protein extraction, which may give insights into the extraction of other high-thiol-based plant proteins and improve their functional properties.
APPLIED SCIENCES-BASEL
(2023)
Article
Polymer Science
Amrish Kumar Padmakumar, Vianna F. F. Jafari, Nikhil K. K. Singha, Muthupandian Ashokkumar, Greg G. G. Qiao
Summary: This work describes an alternative method (arm-first approach) to efficiently synthesize core-crosslinked star polymers. The star polymers are produced using a two-step, one-pot Sono-RAFT process. By altering the applied power, the reaction time can be decreased by half. A CCS polymer was produced using a triblock arm, and it exhibited a very high arm-to-star conversion.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Reshma Kaimal, Madappa C. Maridevaru, Aashutosh Dube, Jerry J. Wu, Anandan Sambandam, Muthupandian Ashokkumar
Summary: The study focuses on the development of a sensor for the detection of low levels of As(III) in water. By synthesizing borophene and modifying the glassy carbon electrode with it, high sensitivity detection of As(III) is achieved. The sensor is low-cost, highly selective, and has good repeatability, making it suitable for practical applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Acoustics
Sivakumar Manickam, Daria Camilla Boffito, Erico M. M. Flores, Jean-Marc Leveque, Rachel Pflieger, Bruno G. Pollet, Muthupandian Ashokkumar
Summary: Ultrasonic waves can cause physical and chemical changes in liquid media through acoustic cavitation. The effects of ultrasonics and sonochemistry have been applied in various fields, such as material synthesis, emulsification, cleaning, and processing. The Editors of the Ultrasonics Sonochemistry journal share their perspectives on different aspects of ultrasonics and sonochemistry, providing valuable insights for students and early career researchers.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Polymer Science
Arunjunai R. S. Santha Kumar, Stephanie Allison-Logan, John R. Finnegan, Nikhil K. Singha, Muthupandian Ashokkumar, Greg Qiao
Summary: The effect of ionic liquids on RAFT polymerization was investigated, and a considerable increase in the polymerization rate constants in ionic liquids was observed. Block copolymers with varying block ratios were synthesized with precise control over their molecular weight and chain-end fidelity provided by the photoiniferter polymerization in ionic liquids was described using MALDI-ToF MS analysis.
Review
Food Science & Technology
Vitoria Hagemann Cauduro, Jiwei Cui, Erico Marlon Moraes Flores, Muthupandian Ashokkumar
Summary: Ultrasound-assisted encapsulation is an emerging technique that is used to encapsulate phytochemicals into food products. It has the advantages of producing smaller capsules with lower polydispersity index and higher bioavailability. Further studies should focus on incorporating these capsules into model food products to assess their stability and sensory properties.
Article
Chemistry, Multidisciplinary
Devyani Srivastava, Amita Singh, Gabriele Kociok-Koehn, Suresh W. Gosavi, Ratna Chauhan, Muthupandian Ashokkumar, Abhinav Kumar, Mohd. Muddassir
Summary: Three new heteroleptic Co(iii) ferrocene dithiocarbamate complexes with dppe as ligand have been synthesized and characterized. Single crystal X-ray diffraction revealed a distorted octahedral geometry around Co(iii) in the complexes. The compounds were used as photo-sensitizers in dye-sensitized solar cells and exhibited good photovoltaic performance.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Devyani Srivastava, Aparna Kushwaha, Gabriele Kociok-Kohn, Suresh W. Gosavi, Ratna Chauhan, Muthupandian Ashokkumar, Abhinav Kumar, Mohd. Muddassir
Summary: Three new nickel complexes were synthesized and used as sensitizers in dye sensitized solar cells (DSSCs). Among the three sensitizers, the DSSC fabricated using p-NiL exhibited the best photovoltaic performance with an efficiency of 3.40%, strong electronic coupling, and enhanced electron injection.
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.