Article
Green & Sustainable Science & Technology
Silvia Saikia, Ajay S. Kalamdhad
Summary: This article discusses the process of converting municipal solid waste into valuable byproducts using pyrolysis technology, and utilizes central composite design to determine the optimal pyrolysis conditions. The results indicate that the operating temperature is the most influential factor on char yield.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Mathematics, Applied
Alexis Courtais, Abderrazak M. Latifi, Francois Lesage, Yannick Privat
Summary: This paper investigates the geometric shape optimization of a parallelepiped shaped fixed bed reactor to maximize reaction conversion rate. The optimization approach based on the adjoint system method leads to a significantly improved reaction conversion rate with the optimal shape printed using additive manufacturing.
SIAM JOURNAL ON APPLIED MATHEMATICS
(2021)
Article
Chemistry, Multidisciplinary
Kunyue Leng, Yu Ren, Wei Wang, Ruisi Wang, Kaiye Gao, Xiaolin Li
Summary: Hierarchical zeolites exhibit excellent catalytic performance in Friedel-Crafts fixed-bed alkylation, showing high resistance to deactivation and potential industrial applications.
Article
Chemistry, Physical
Prithwish Ghosh, Na Yeon Kwon, Youjung Byun, Neeraj Kumar Mishra, Jung Su Park, In Su Kim
Summary: In this study, a cobalt(II)-catalyzed method for C-H alkylation and acylation of N-heterocycles using 1,4-dihydropyridines (DHPs) as alkylating and acylating agents was reported. The combination of KBrO3 and a Co(II) catalyst successfully generated alkyl and acyl radicals from DHPs. This method was applicable to various heterocycles and demonstrated selectivity in modifying drug candidates and synthesizing bioactive molecules on a gram scale.
Article
Green & Sustainable Science & Technology
H. M. Schellevis, T. N. van Schagen, D. W. F. Brilman
Summary: This study focuses on quantifying the influence of operational parameters on energy duty and CO2 productivity in the Direct Air Capture process, developing a dynamic model and conducting sensitivity analyses. Results show that high desorption temperature is preferred for energy duty, while high sorbent working capacity reaches an optimum for CO2 productivity. Additionally, weather conditions and diurnal variations can significantly impact the performance of the process and should be considered during design and operation.
INTERNATIONAL JOURNAL OF GREENHOUSE GAS CONTROL
(2021)
Article
Materials Science, Ceramics
Sadaf Batool, Zakir Hussain, Usman Liaqat, Manzar Sohail
Summary: This study reports a facile synthesis method for bone whitlockite using a solid-state reaction. Characterization analysis confirmed the presence of whitlockite crystalline phase and characteristic peak of bone whitlockite in the synthesized material. The synthesized particles have an appropriate size and are stable within a certain temperature range.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Nikita Kvasovs, Valeriia Iziumchenko, Vitalii Palchykov, Vladimir Gevorgyan
Summary: This method utilizes visible light-induced generation of nucleophilic hybrid alkyl Pd radical intermediates to achieve efficient atom economical C-C bond construction of alkyl-substituted oximes, allowing a broad range of primary, secondary, and tertiary alkyl bromides and iodides, as well as a range of different formaldoximes, to efficiently undergo this transformation.
Article
Thermodynamics
Massimiliano Zamengo, Stephen Wu, Ryo Yoshida, Junko Morikawa
Summary: This study presents the first attempt to use a multi-objective optimization algorithm for the design of packed bed reactors with heat-transfer-enhanced materials. The optimization aims to find the optimal trade-off between heat storage density, average heat storage rate, and exergy efficiency. The results indicate that the optimal foam porosity is in the range of 70-80%, while the optimal thickness is in the range of 20-70 mm. The analysis suggests the need to improve the thermal contact conductance in packed bed reactors and thinner beds perform better for higher exergy efficiency.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Chemical
Tomohiro Kinoshita, Katsunori Yogo
Summary: A lab-scale continuous CO2 capture system for coal-fired power plants using amine-impregnated solid sorbents was optimized through process simulation. Sensitivity analysis on key parameters was conducted, and the simulation results closely matched experimental values. After confirming the reliability of the simulator, cycle time and process time were optimized to achieve a reduction in regeneration heat without compromising CO2 capture efficiency.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Review
Energy & Fuels
Jing Tan, Ya-Ni Ji, Wen-Sheng Deng, Yue-Feng Su
Summary: Trickle bed reactors (TBRs) are widely used in gas/liquid/solid catalytic reactions due to their flexibility and simplicity, but they suffer from inefficiencies and hot spots caused by non-uniform fluid distribution and incomplete wetting of the catalyst. Process intensification in TBRs is necessary to meet the current and future demands of the chemical industry.
Article
Engineering, Chemical
Ying Yang, Huixiong Jiang, Jianguo Yu
Summary: This study systematically investigated the desorption process for lithium recovery from simulated salt lake brine using an adsorption method. Temperature is found to significantly impact the desorption process, while washing volume affects the elution rate of lithium. The concentration-dependent Homogeneous Surface Diffusion Model (HSDM) was developed to fit and simulate the dynamic elution performance of lithium in fixed bed columns.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Chemistry, Organic
Shinyeong Han, Injoo Seo, Do Hyun Ryu
Summary: A catalytic enantioselective Friedel-Crafts reaction of various heteroaromatic compounds with glyoxals has been developed, providing chiral alpha-hydroxyketones in high yield and excellent enantioselectivity. The synthetic utility of this method was demonstrated by converting the products to various derivatives such as 1,2-diol and optically active amino alcohol.
Article
Chemistry, Multidisciplinary
Yuntao Tian, Yuanfang Wan, Liangliang Zhang, Guangwen Chu, Adrian C. Fisher, Haikui Zou
Summary: An artificial neural network was developed and optimized to evaluate product distribution and octane number in the sulfuric acid-catalyzed C4 alkylation process, with a network topology of 10-20-30-5 and Bayesian Regularization backpropagation. The model showed high accuracy with training mean square error of 5.8 x 10^(-4) and testing mean square error of 8.66 x 10^(-3), demonstrating potential for evaluating complex systems in different reactors.
Article
Chemistry, Multidisciplinary
Nian Xu, Maoping Pu, Han Yu, Gaofei Yang, Xiaohua Liu, Xiaoming Feng
Summary: This study achieved the direct alpha-alkylation of acyclic carbonyls with nonactivated hydrocarbons using iron-based catalysts, resulting in highly selective products. The use of a chiral iron complex and oxidants allowed for the high enantioselectivity (up to 99% ee) with good compatibility in yields (up to 88%).
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Energy & Fuels
Aaron Martinez-Castello, Maria Tejeda-Serrano, Anna Elzbieta Nowacka, Judit Oliver-Meseguer, Antonio Leyva-Perez
Summary: In this study, it was demonstrated that organic solid acids can be used as catalysts for the esterification reaction of long-chain acids and alcohols, achieving high yields and selectivity in both batch and flow processes. Large-scale experiments in pilot plant tubular reactors confirmed the feasibility of ton-scale production of long-chain esters using solid catalysts in a continuous process.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2022)
Article
Engineering, Chemical
Yuandong Cui, Bin He, Yu Lei, Yu Liang, Wanting Zhao, Jian Sun, Xiaomin Liu
Summary: Efficient and sustainable lignin-based absorbents were prepared by grafting the active amine group on a lignin-derived compound. These absorbents showed low cost, high efficiency, and good sustainability, addressing the challenges of existing petroleum-based CO2 absorbents.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yanfei Yang, Guilin Meng, Hongli Wang, Wankai Wang, Junping Zhang
Summary: A new nanomaterial Co/N-C@Li-MMT is designed to inhibit polysulfide shuttle and maximize polysulfide redox kinetics in Li-S batteries. The modified separator with Co/N-C@Li-MMT shows high Li+ conductivity, fast Li+ diffusion, efficient polysulfide trapping and conversion, leading to high capacity, good rate performance, excellent cycling stability, and ultralow self-discharge in Li-S batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Timing Fang, Chunlei Wei, Xiangshuai Meng, Guohui Zhou, Xiaomin Liu
Summary: The behavioral processes of gas separation and transfer in homogeneous and biphasic cellulose/ionic liquid membranes have been studied using molecular dynamics simulations. Structural homogeneity is the main criterion for separation. It is revealed that solvent homogeneity affects gas separation at the molecular level, which may enhance the creation and design of two-dimensional materials in the future.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Chemical
Hao Li, Yingwei Li, Ruirui Wang, Sheng Zhong, Ruirui Zhang, Ruixia Liu
Summary: In this study, an ionic liquid-mediated method was successfully developed to construct oxygen vacancies (OVs) in defective Co3V2O8 catalyst, which exhibited excellent performance in cyclohexane oxidation. The ionic liquids not only acted as structure-directing agents but also promoted the formation of OVs through coordination with Co2+ and V5+, accelerating the redox cycle and enhancing substrate activation and electron transfer. This design presents a facile strategy for constructing OVs using ionic liquids and provides insights into OV-rich mixed metal oxides in selective oxidation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Obstetrics & Gynecology
Junping Zhang, Naiqian Wu, Minhui Li
Summary: Researchers developed a prediction model based on glucose indicators in the second trimester to earlier identify the risk of cesarean delivery (CD). The model showed good performance in predicting CD risk based on significant variables including pre-pregnancy BMI, plasma glucose levels, and glycosylated hemoglobin.
JOURNAL OF MATERNAL-FETAL & NEONATAL MEDICINE
(2023)
Article
Chemistry, Multidisciplinary
Ning Tian, Jinfei Wei, Junping Zhang
Summary: Researchers have designed superhydrophobic fabrics with high impalement resistance and stretching stability by constructing elastic reconfigurable micro-/micro-/nanostructures. The effects of microfiber distance and micro-/nanostructures on superhydrophobicity and impalement resistance were studied. The superhydrophobic fabrics display excellent impalement resistance and stretching stability, and also show good antifouling property, self-cleaning performance, as well as high abrasion and washing stability.
Article
Chemistry, Multidisciplinary
Lingxiao Li, Weiqiang Xiong, Shixi Wu, Junping Zhang
Summary: Ultra-stable aluminum nanoparticles (Al NPs) with enhanced combustion performance are reported using a crosslinked polydopamine/polyethyleneimine (PDA/PEI) nanocoating. The nanocoating, with a thickness of about 15nm and mass of about 0.24 wt %, is formed through one-step rapid graft copolymerization of dopamine and PEI on Al NPs at room temperature. The Al@PDA/PEI NPs exhibit excellent stability in hot water and improved combustion heat and burning rate.
Article
Biochemistry & Molecular Biology
Xiaokang Wang, Yuanyuan Cui, Yingying Song, Yifan Liu, Junping Zhang, Songsong Chen, Li Dong, Xiangping Zhang
Summary: In this study, ionic liquids (ILs) containing hydroxylamine as the cation were found to have better extraction performance for the separation of methanol from DMC. The extraction mechanism of these functionalized ILs was analyzed to be mainly governed by hydrogen bonding energy and Van der Waals force. Experimental results validated the reliability of the COSMO-RS model, and ethanolamine acetate ([MEA][Ac]) was determined to have the best extraction performance.
Article
Energy & Fuels
Caiyi Zhang, Ting Guo, Luis K. K. Ono, Shuai Yuan, Tianhao Wu, Hengyuan Wang, Jiahao Zhang, Xiaomin Liu, Xiaomin Huo, Congyang Zhang, Chenfeng Ding, Tongtong Li, Yanbo Wang, Liyuan Han, Yabing Qi
Summary: It has been reported that the loss of iodine from the perovskite layer is one of the factors leading to stability issues in iodine-containing perovskite solar cells. In this study, bidentate coordination is used to construct a stable perovskite-based heterostructure with undercoordinated I- on the perovskite surface. This strong halogen bonding effectively prevents the migration of I- into functional layers and the release of I-2, resulting in a high power conversion efficiency of 22.59% for the inverted perovskite solar cell and a 96.15% maintenance of its initial value after continuous operation for 500 h under illumination.
Article
Chemistry, Multidisciplinary
You Zhang, Shengzhe Ying, Zhezheng Ding, Chuanlong Wei, Qing Wang, Chengwang Zhou, Guohui Zhou, Xiao Tang, Xiaomin Liu
Summary: This study proposes an aqueous ammonium-iodine battery with a chaotropic electrolyte and specific anode and cathode materials. Experimental and theoretical results indicate that the chaotropic electrolyte enhances electrolyte stability and forms a hydrophobic cationic sieve on the anode, ensuring stability of the electrolyte and electrode. Additionally, the Cl--containing electrolyte supports consecutive I+/I-0 reactions on the cathode.
Article
Chemistry, Physical
Xiaopeng Huang, Lingxiao Li, Xia Zhao, Junping Zhang
Summary: Silicone nanoparticles were deposited onto melamine sponge and modified with polypyrrole and Au nanoparticles to fabricate highly saltresistant solar evaporators for stable long-term desalination and water harvesting. These solar evaporators have a superhydrophilic hull for water transport and solar desalination, and a superhydrophobic nucleus for reducing heat loss. They achieved spontaneous rapid salt exchange and reduction in salt concentration gradient due to ultrafast water transport and replenishment in the superhydrophilic hull with a hierachical micro-/nanostructure, effectively preventing salt deposition during interfacial solar-driven evaporation (ISE). These solar evaporators demonstrated long-term stable evaporation performance and the ability to collect fresh water without any salt precipitation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Wei Ding, Jinfei Wei, Junping Zhang
Summary: The adhesion of liquid foods on their packaging materials has become a major concern due to the significant waste and pollution it causes. Food grade superhydrophobic coatings offer a promising solution, although their application has been limited by low mechanical stability and complex preparation methods. In this study, a food grade superhydrophobic coating was developed using edible paraffin wax, polydimethylsiloxane-modified attapulgite natural nanorods, and a food grade silicone adhesive. The coating exhibited good static and dynamic superhydrophobicity, as well as excellent mechanical and chemical stability. It also showed repellency towards various liquid foods, including hot ones, and could be applied to a wide range of food packaging materials. Therefore, the superhydrophobic coatings have great potential for anti-adhesion of liquid foods in the food packing industry.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Yingwei Li, Shengxin Chen, Ying Jin, Xinxin Li, Ruirui Zhang, Ruixia Liu
Summary: A series of CHR-VOx were prepared by controllable hydrogen treatment and reduced to states dominated by V5+ and V4+ species. The catalytic roles of V-species and O-species for cyclohexane oxidation were explored. The surface properties of CHR-VOx underwent remarkable changes, leading to significant improvement in catalytic performance. XPS and Raman confirmed the reduction behavior. Moderate-reduced CHR-VOx with 78.7% multi-liganded-oxygen (O-L) showed the best conversion for cyclohexane (11.8%), while over-reduced CHR-VOx with a large content of V4+ species (33%) exhibited the best selectivity for adipic acid (44.3%). O-L sites were identified as the active sites for cyclohexane activation, while V4+ species were regarded as oxygen vacancies (OVs) contributing to further oxidation to adipic acid.
Article
Chemistry, Multidisciplinary
Yumei Liu, Deshuai Yang, Guixiang Zeng, Kexin Li, Shuang Wei, Hao Li, Min Ji, Ruixia Liu
Summary: In this study, a simple ruthenium/deep eutectic solvent catalytic system was developed to efficiently catalyze the alkoxycarbonylation reaction of alkenes under mild conditions, without the use of sensitive ligands or acid additives. The catalyst system showed high conversion and selectivity for ester production.
Article
Chemistry, Physical
Muhammad Faizan, Yingwei Li, Xingsheng Wang, Piao Song, Ruirui Zhang, Ruixia Liu
Summary: This study synthesized modified VPO catalysts using deep eutectic solvents and evaluated their catalytic performance in the oxidation of n-butane. The results showed that deep eutectic solvents could regulate the chemical state of the catalyst surface, leading to improved n-butane conversion and maleic anhydride selectivity.
GREEN ENERGY & ENVIRONMENT
(2023)
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.
