Article
Energy & Fuels
Ziyang Xu, Chunbo Wang, Shuang Yue
Summary: In this study, the catalytic effect of potassium (K) on the heterogeneous reduction of NO over a char surface was investigated using quantum chemistry calculations. The adsorption performance and reaction pathways were determined using density functional theory, both before and after potassium decoration. The results showed that K can enhance the adsorption of NO molecules on the char surface and decrease the reaction energy barriers, indicating its promotion of the chemical reaction. Four reaction pathways were identified, and the thermodynamic and kinetic analysis revealed that the addition of K increased the reaction equilibrium constants and reaction rate constants, respectively. These findings suggest that K can significantly promote the NO heterogeneous reduction by char.
Article
Energy & Fuels
Shanhui Zhao, Chao Xun, Wanjun Xu
Summary: This study used density functional theory to investigate the catalytic reduction of nitric oxide (NO) on the graphene surface. The effects of inherent potassium and active sites on NO reduction were considered, and two bio-char models with or without potassium were established. The results showed that the migration of electron from potassium atom to carbon atom increased the electron density on the graphene surface, thereby improving the electron-donating capacity.
Article
Energy & Fuels
Jiancheng Yang, Long Chen, Jiachun Su, Yuan Huang, Mingkai Zhang, Mengkai Gao, Mingtao Yang, Shilei Yuan, Xin Wang, Boxiong Shen
Summary: The addition of sodium in high alkali coal was found to promote the heterogeneous reduction of NO in nitrogen-containing char. Density function theory simulations showed that sodium lowered the reaction energy barriers and increased the exothermicity of the reaction, thereby promoting the reaction. Thermodynamic and kinetic analyses confirmed these findings.
Article
Thermodynamics
Yi-Feng Chen, Sheng Su, Tao Liu, Ya-Wei Song, Xin Wang, Meng-Xia Qing, Yi Wang, Song Hu, Zhong-Xiao Zhang, Jun Xiang
Summary: This study used quantum chemistry calculations to reveal the microscopic mechanism of NO heterogeneous reduction on a char surface. The results showed that during the chemisorption process, the char donated electrons to NO and there were two secondary chemisorption stages resulting in the formation of N2 and N2O. The chemisorption of the second NO was determined as the rate-limiting step for NO reduction. The migration of oxygen atoms favored NO reduction, leading to a preferred pathway for N2 formation over N2O.
Article
Chemistry, Applied
Ji Liu, Yuan-Gu Xia, Yang-Wen Wu, Xin-Yue Zhou, Bin Hu, Qiang Lu
Summary: Reburning is an effective method for the clean and efficient utilization of biomass with low NOx emissions. The presence of potassium (K) in biomass affects the reaction between NOx and char nitrogen, thereby influencing the removal efficiency of NOx. This study investigated the effects of K on heterogenous NO-char(N) reactions using density functional theory (DFT) and calculated the rate constants for these reactions. The results showed that the presence of K facilitated the heterogeneous reduction of NO and inhibited the migration of char(N), leading to changes in the reaction path. This research provides theoretical guidance for controlling NOx emissions during biomass reburning.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Energy & Fuels
Yuzhuo Wang, Yingjie Li, Wan Zhang, Xiaotong Ma, Zeyan Wang
Summary: This study utilized density functional theory to investigate the effect of copper on NO reduction by char and CO in the carbonation stage of calcium looping. The results showed that copper decreases the possibility of char deactivation and retains a stable promoting effect on NO reduction. Additionally, copper decreases energy barriers for NO reduction by char and CO, as well as CO oxidation by O-2.
Article
Biotechnology & Applied Microbiology
Yanshan Yin, Jianhang Tao, Wenpeng Deng, Tao Wang, Rufan Yang, Wei Zhang, Hong Tian, Donglin Chen
Summary: In this study, the adsorption and reduction of N2O on char in the presence of CO were investigated using density functional theory. It was found that CO affects the reduction of N2O and the rate-limiting steps occur at different stages for different char models.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Thermodynamics
Mengchi Yang, Chao Liu, Lianfei Xu, Menghao Dong, Zhuozhi Wang, Boxiong Shen, Wenwen Kong, Xin Wang, Jiancheng Yang
Summary: Bi-alkali-metal doping can significantly enhance the heterogeneous reduction rate of NO on char by promoting the dissociation of N-C and the combination of N-Na or O-K. The charge transfer and simulation paths analysis indicate that Na/K co-doping can reduce the energy barrier in the second and third steps of the reaction. This study provides new insights into the microscopic mechanism of NO-char reaction catalyzed by composite metal.
Article
Thermodynamics
Qian Zhou, Lihong Wei, Yinbo Yang, Tong Hao, Hui Liu
Summary: This study investigated the effects of different loadings of iron on coal-derived char for the heterogeneous reduction of NO. The catalytic mechanism of Fe was revealed through theoretical calculations. The experimental results showed that the char containing 0.4% FeCl3 exhibited the highest catalytic performance, with an NO reduction rate 18.8% higher than that of demineralized char. The catalytic mechanism of Fe was attributed to the creation of new active sites, reduction of energy barriers, and facilitation of N-N bond formation and N-2 desorption from the char surface.
COMBUSTION AND FLAME
(2023)
Article
Thermodynamics
Ruobing Wang, Chan Zou, Yue Zhang
Summary: The mechanism of N2O reactions with CO, both homogeneous and heterogeneous, was investigated using DFT. The calculations showed that there are two channels for the homogeneous reaction and two possible reaction pathways for the heterogeneous reaction. Thermodynamic analysis indicated that both types of reactions are exothermic and can take place spontaneously. Kinetic analysis revealed that the activation energy of the heterogeneous reaction is lower than that of the homogeneous reactions, suggesting that the reduction of N2O with CO is more likely to occur on the char surface.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Long Chen, Jiancheng Yang, Menghan Li, Mingkai Zhang, Mengkai Gao, Yiqing Zhang, Mengyi Gao, Lianfei Xu, Xin Wang, Boxiong Shen
Summary: This study investigates the effect of sodium and potassium on the adsorption behavior and heterogeneous reduction roads of NO on the surface of internal nitrogen-containing char in high alkali coal. The results show that the addition of Na and K promotes the adsorption of NO on char and facilitates the reaction. The study provides a theoretical pavement for the continued study of the heterogeneous reduction process, which is of great significance for the clean use of high alkali coals.
Article
Thermodynamics
Anyao Jiao, Zining Zhou, Xiuchao Yang, Hongtao Xu, Feng Liu, Xiaowei Liao, Jiaxun Liu, Xiumin Jiang
Summary: This study investigates the mechanism of NO reduction by NH3 and char at high temperatures, revealing that the presence of O2 inhibits the reduction efficiency. The E-R mechanism is found to govern the NH3-NO reactions, reducing barriers by up to 14.5%. The temperature increase leads to an increase in energy barriers and a decrease in reaction rates.
Article
Energy & Fuels
Bo Xiong, Jing Liu, Yingju Yang, Yuchen Yang, Zhixuan Hua
Summary: In this study, the effect of NO on the electrocatalytic reduction of CO2 over Pd@Cu bimetal catalysts was investigated using density functional theory. It was found that NO is more easily adsorbed on the catalyst surface and reduced to NH3, promoting the CO2RR process.
Article
Chemistry, Physical
Jie Wu, Yang-Xin Yu
Summary: Through first-principles calculations and microkinetic modeling, the potential of a series of metal-dimer anchored on the PC6 monolayer as efficient NORR electrocatalysts was examined. Four promising candidates for NORR catalysis, Cr-2/PC6, Mn-2/PC6, Fe-2/PC6, and Re-2/PC6 BACs, were screened out. Among them, Fe-2/PC(6)BAC showed the best performance with a significantly higher NORR rate constant compared to other BACs. This work not only provides eligible BACs for NH3 synthesis but also offers an atomic understanding of the NORR process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Yinbo Yang, Lihong Wei, Qian Zhou, Hang Yu, Baochong Cui, Lun Luo
Summary: This study investigated the role of sodium in the NO heterogeneous reduction by nitrogen-containing char in the reduction zone of staged combustion. The results showed that sodium promoted the adsorption and reduction of NO, but an excessive amount of sodium inhibited the adsorption and reduction of NO. The addition of 0.6 wt.% NaCl had the best catalytic effect.
COMBUSTION SCIENCE AND TECHNOLOGY
(2022)
Article
Thermodynamics
Zhijun Zhou, Qi Zhang, Liping Chen
Summary: This study focuses on determining intrinsic kinetic parameters and interpreting and simulating the rate profile of coal char. It analyzes the reactivity of coal char at different temperatures, discusses the weight loss process in non-isothermal conversion, and studies the effects of kinetic analysis methods. It also examines the rate profiles of isothermal conversion and the influence of particle temperature. Finally, an intrinsic reaction model is developed to reproduce the rate profile of isothermal conversion accurately.
COMBUSTION SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Huan Luo, Jiayi Li, Bo Song, Bing Zhang, Yixi Li, Zhijun Zhou, Xiuli Chang
Summary: This study explored the toxicity of lithium, lead, and manganese on neural stem cell proliferation, as well as their combined effects. The results showed that the combination of lead and manganese had a synergistic toxicity effect in both models. In the dose-additivity method, mixtures with a high ratio of lithium exhibited synergistic effects, while mixtures with a lower or equal lithium ratio showed antagonistic effects. Additionally, the interactions of lithium and manganese mixtures varied across different endpoints.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Cell Biology
Bo Song, Yuwei Zhang, Guiya Xiong, Huan Luo, Bing Zhang, Yixi Li, Zhibin Wang, Zhijun Zhou, Xiuli Chang
Summary: Cadmium (Cd) is an environmental pollutant that has adverse effects on neuronal maturation. This study used single-cell RNA sequencing to uncover the molecular mechanisms of Cd on neuronal lineage cells. The results showed that Cd alters the trajectory of neuronal maturation, induces differential transcriptome expression, and affects oxidative damage and cell cycle phases. In addition, Cd downregulates the autocrine and paracrine signals of Wnt5a. Activation of Wnt5a effectively rescues neuronal development and promotes maturation.
CELL BIOLOGY AND TOXICOLOGY
(2023)
Editorial Material
Dermatology
Zhijun Zhou, Na Li, Huicheng Li, Luhuai Shi, Yangmin Gao, Weijun Liu, Xiaobing Wang, Hua Qian, Xiaoguang Li
INTERNATIONAL JOURNAL OF DERMATOLOGY
(2023)
Article
Environmental Sciences
Jiayun Ding, Yiming Dai, Jiming Zhang, Zheng Wang, Lei Zhang, Sinan Xu, Ruonan Tan, Jianqiu Guo, Xiaojuan Qi, Xiuli Chang, Chunhua Wu, Zhijun Zhou
Summary: This study found significant associations between in utero PFAS levels and adipocytokine concentrations, suggesting that exposure to a mixture of PFAS during pregnancy may lead to decreased fetal leptin levels but increased adiponectin levels, with potential sex-specific effects.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Zhuoyou Gao, Zhijun Zhou, Mengying Wang, Ningzhao Shang, Wei Gao, Xiang Cheng, Shutao Gao, Yongjun Gao, Chun Wang
Summary: This study presents an efficient method to fabricate highly dispersed Pd-PTA/ZrO2 catalysts and demonstrates their superior catalytic performance for the hydrodeoxygenation of lignin-derivatives under mild conditions.
Article
Engineering, Biomedical
Guangwei Mao, Zhijun Zhou, Hao Su, Yaozhong Chen, Jianjun Zhang, Chiyuan Zhang, Zhigong Wang, Xiaoying Lu
Summary: This paper proposes an ESCS system for animal experimental study, which provides a fully implantable and programmable stimulating system for complete SCI rat model, along with a wireless charging power solution. The system consists of an implantable pulse generator (IPG), a stimulating electrode, an external charging module, and an Android application (APP) via a smartphone. The results of the animal experiment show that the stimulating system can work stably in SCI rats, effectively activating the lower limb muscles and providing an effective tool for studying the ESCS application in motor function recovery.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Agriculture, Multidisciplinary
Jie Li, Yushi Yang, Zhijun Zhou, Shuofeng Li, Lin Hao, Weihua Liu, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: A novel fluorine-functionalized triazine-based porous organic polymer (F-POP) was developed for the adsorption of aflatoxins. The F-POP demonstrated superior adsorption ability due to multiple interaction mechanisms, including hydrogen bond, F-O interaction, pi-pi interaction, F-pi interaction, and hydrophobic interaction. Furthermore, magnetic F-POP was prepared and used as a magnetic sorbent for the extraction of trace aflatoxins in peanut and rice samples.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Chemistry, Analytical
Zixuan Cai, Zhijun Zhou, Bin Zhao, Sicheng Ma, Lin Hao, Weihua Liu, Qianqian Wang, Zhi Wang, Qiuhua Wu, Chun Wang
Summary: In this study, novel magnetic hypercrosslinked polymers were successfully fabricated and applied for the enrichment of chlorophenols in environmental water, peach beverage, and honey samples. The method showed good linearity, low detection limits, and high recoveries, making it a promising alternative for the detection of chlorophenols in complex matrix samples.
MICROCHEMICAL JOURNAL
(2023)
Article
Evolutionary Biology
Qidi Zhu, Zhijun Zhou, Qi Guo, Yanhao Duan, Haijian Wang, Fuming Shi
Summary: This study provides the first phylogenetic and biogeographical analyses of Diestramimini, showing its sister-group relationship with Diestramima + Tamdaotettix and Arboramima + Gigantettix. A new genus, Bidiestramima, is established and a new species, Bidiestramima hekouensis, is described. The diversification of Diestramimini is attributed to dispersal and vicariance events influenced by the uplift of the Himalaya-Tibetan Plateau, the formation of the monsoon, and climate fluctuations.
Article
Microbiology
Qing-mei Li, Dai Zhang, Ji-zong Zhang, Zhi-jun Zhou, Yang Pan, Zhi-hui Yang, Jie-hua Zhu, Yu-hua Liu, Li-feng Zhang
Summary: Continuous cropping of the same crop leads to soil degradation and a decline in crop production, but these impacts could be mitigated through rotation cropping. This study compared the effects of potato continuous cropping and rotation cropping (potato-oat and potato-forage maize) on soil ecosystem multifunctionality (EMF). The results showed that rotation cropping enhanced soil EMF, microbial diversity, and potato yield.
FRONTIERS IN MICROBIOLOGY
(2023)
Article
Immunology
Weijun Liu, Huicheng Li, Yun Jin, Lifang Cheng, Luhuai Shi, Yangmin Gao, Zhijun Zhou, Suying Feng, Hua Qian, Takashi Hashimoto, Xiaoguang Li
Summary: Mucous membrane pemphigoid (MMP) is a challenging autoimmune bullous disease that affects various mucosae and sometimes presents with skin lesions. The pathogenesis of MMP remains unclear, despite the identification of multiple autoantigens.
FRONTIERS IN IMMUNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Zhijun Zhou, Chunxue Cui, Da Zheng, Kai Li, Yinglong Xuan, Chunyao Wang
Summary: This paper derives a prediction model for the transient productivity of perforated herringbone wells, considering the mutual interference between branches and perforations. The influence of different perforation schemes on productivity is studied, and selective completion perforation technology is adopted to improve the productivity of herringbone wells.
Editorial Material
Public, Environmental & Occupational Health
Meibian Zhang, Gaku Ichihara, Zhijun Zhou, Jianlin Lou, Dongming Wang
FRONTIERS IN PUBLIC HEALTH
(2023)
Article
Engineering, Chemical
Yuzhe Cao, Zhijun Zhou, Tongyu Zhang, Zejuan Ni, Bo Ge, Hao Zhang, Guina Ren, Xin Shao, Zhaozhu Zhang
Summary: A solar-driven photothermal evaporation device with salt-resistance and the ability to remove dye and oil slicks has been developed to overcome the limitations of existing devices. The device uses a superhydrophobic part to eliminate dye and oil slicks, protecting both the device and the environment. It achieves a purification efficiency of over 99.9% for heavy metal ions and Rh B solution. The device also demonstrates high evaporation rates under one sun illumination for different water sources, indicating its potential for desalination and wastewater purification.
SEPARATION AND PURIFICATION TECHNOLOGY
(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.