Article
Chemistry, Analytical
Hoon Chae Park, Dong Won Yun, Myung Kyu Choi, Hang Seok Choi
Summary: In this study, a spouted-bed thermogravimetric analyzer (SB-TGA) was developed to accurately investigate the reaction models and kinetic parameters of spouted beds. The analyzer overcomes the disadvantages of conventional thermogravimetric analyzers that arise from different hydrodynamics. The experimental results demonstrate that the SB-TGA provides more reliable results for predicting the pyrolysis reaction in a spouted-bed.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Physical
Ibrahim Dubdub
Summary: This paper aims to investigate the kinetics of polypropylene (PP) polymer pyrolysis using thermogravimetric analysis (TGA). The results show that the activation energy values for PP polymer pyrolysis at different conversions are in good agreement with the values obtained from four model-free methods. Additionally, the most controlling reaction mechanism identified using Criado's method is the geometrical contraction models-cylinder model.
Article
Engineering, Environmental
Hanlu Xu, Hui Dong, Liang Zhao, Menghui Zhang, Daokuan Cheng
Summary: Extracting magnesium resources from Salt Lakes industrial waste bischofite by pyrolysis technology has become a feasible waste utilization method. This study focuses on understanding the pyrolysis behavior and kinetic analysis of bischofite using a thermogravimetric analyzer. The results show that controlling the reaction temperature at 700-800 degrees Celsius can improve the conversion efficiency and product quality.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Thermodynamics
Yao Zhu, Qinhui Wang, Kaikun Li, Jianmeng Cen, Mengxiang Fang, Chengdong Ying
Summary: In this study, the pressurized isothermal pyrolysis characteristics of coal were investigated using a pressurized micro-fluidized bed reaction analyzer (P-MFBRA) for the first time. The effect of pressure on gas release characteristics and the kinetics of pressurized isothermal pyrolysis were explored. The results showed that the yields of CO2, CO, CH4, and H-2 increased with temperature and pressure. The differences in gas-releasing order reduced with increasing temperature and pressure, while the difference in gas-ending order first decreased and then increased with pressure.
Article
Agricultural Engineering
Lin Hu, Xian-Yong Wei, Chenguang Wang, Mei-Ling Xu, Feng-Bin Zhang, Hai-Peng Lv, Zhi-Min Zong
Summary: This research systematically investigated the influence of methanolysis pretreatment on wheat straw, revealing significant changes in physicochemical structure and extracting oxygen-containing functional groups. The study also analyzed the pyrolysis kinetics and thermodynamics parameters, providing new insights into the pyrolysis process of biomass liquefaction residue.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
Qiang Hu, Xin He, Zhiyi Yao, Yanjun Dai, Chi-Hwa Wang
Summary: This study investigates the isothermal chemical conversion of biomass pellets under different atmospheres and temperatures, revealing the effects on gas production, solid yield, and product structure.
JOURNAL OF THE ENERGY INSTITUTE
(2021)
Article
Polymer Science
Ibrahim Dubdub, Mohammed Al-Yaari
Summary: Plastic waste generation has increased significantly over the past 70 years, with more than 50% of municipal plastic waste being composed of PS, PP, and LDPE products. A kinetic model has been developed to describe the thermal decomposition of plastic mixtures, contributing to efficient plastic waste management. Different isoconversional models were used to obtain kinetic parameters, with Coats-Redfern model being the most suitable for determining reaction mechanisms.
Article
Engineering, Chemical
Houwang Wang, Wenzhou Du, Ya Xi, Yansong Zhang, Bowen Wang, Yingjun Sun
Summary: In this study, a kinetic analysis of the pyrolysis of bituminous coal was conducted. The coal sample was pyrolyzed using a thermogravimetric analyzer, and the pyrolysis process at different heating rates was investigated. The results showed that as the heating rate increased, the initial pyrolysis temperature and the peak temperature of the maximum weight loss rate also increased. The activation energy and pre-exponential factor were calculated using the Doyle integral method.
CHEMICAL ENGINEERING & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Lianpei Zou, Lin Song, Man Li, Xuan Wang, Xiang Huang, Yaning Zhang, Bin Dong, John Zhou, Xiaowei Li
Summary: The study shows that anaerobic digestion has varying effects on the gas composition of syngas produced from different organic solid wastes, resulting in changes in the amounts of C, N, and S-containing gases. These findings provide a theoretical foundation for the environmentally-friendly application of syngas from digestates.
Article
Polymer Science
Ibrahim Dubdub
Summary: In this study, thermal cracking of plastic wastes, including polystyrene (PS), low-density polyethylene (LDPE), and polypropylene (PP), was investigated using thermal analysis technique thermogravimetric analyzer (TGA). An artificial neural network (ANN) model was developed to predict the weight fraction of mixed polymers, and the results showed good agreement between the actual and predicted values, indicating the high efficiency of the model in simulating new data.
Article
Engineering, Environmental
Mian Xu, Xianqing Zhu, Xian Li, Zhenzhong Hu, Yun Huang, Ao Xia, Hong Yao
Summary: Accurate measurement of combustion kinetics is crucial for numerical simulation and process optimization of MSW-fired systems. The micro-fluidized bed reaction analyzer (MFBRA) was used to investigate combustion behaviors and kinetic modeling of noodles char (NC) and bamboo chopsticks char (BC), showing that TGA may not fully meet the requirements for MSW char combustion kinetics study.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Environmental Sciences
Mohamed Aboughaly, I. M. Rizwanul Fattah
Summary: This review paper discusses the recommended monitoring technologies for detecting greenhouse gas emissions in solid waste thermochemical reactions. Gas analyzers based on the absorption principle are used to continuously measure the properties of gas mixtures during thermochemical reactions. The paper recommends gas analyzers and process control tools to enhance the sensitivity and dynamics of thermochemical reactions. The environmental assessment compares different solid waste chemical recycling methods in terms of greenhouse gas emissions and various impact categories.
Review
Chemistry, Multidisciplinary
Qi Yuan, Shan Liu, Ming-Guo Ma, Xing-Xiang Ji, Sun-Eun Choi, Chuanling Si
Summary: This article discussed various strategies and historical context of kinetic models in hemicellulose hydrolysis, with a focus on oligosaccharides, acid catalysts, and thermogravimetric analysis. The article also presented the issues and suggestions for kinetic models in hemicellulose hydrolysis, aiming to enhance the understanding of hemicellulose pyrolysis mechanism.
FRONTIERS IN CHEMISTRY
(2021)
Article
Thermodynamics
Xuefei Zhang, Yongling Li, Xianwen Zhang, Peiyong Ma, Xianjun Xing
Summary: Co-combustion of municipal solid waste (MSW) with hydrochars was found to be an effective method for waste treatment and energy recovery. The addition of hydrochars lowered the burnout temperatures and reduced the release of harmful gases. The hydrochar prepared at 200℃ (SD200) showed the best co-combustion performance among different hydrochars prepared at various temperatures.
Article
Engineering, Environmental
Jimin Zeng, Jun Yuan, Lihui Jiang, Shihe Chen, Shaonan Zhang, Zhichao Li
Summary: The study focused on the reactions between solid fuel and gas intermediates in a chemical looping combustion (CLC) reactor, identifying carbon gasification as a control step and determining that the diffusional resistance of 45-75 μm char particles can be ignored.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Agricultural Engineering
Sivasamy Sethupathy, Garbriel Murillo Morales, Lu Gao, Hongliang Wang, Bin Yang, Jianxiong Jiang, Jianzhong Sun, Daochen Zhu
Summary: As an abundant aromatic biopolymer, lignin holds great potential for producing various chemicals and biofuels through biorefinery activities, contributing to a sustainable circular economy. However, lignin valorization faces challenges such as its heterogeneous nature, intrinsic recalcitrance, strong smell, dark color, difficulties in lignocellulosic fractionation, and high bond dissociation enthalpies in its functional groups. Despite these constraints, recent research and development have shown promising applications of lignin-based hydrogels, surfactants, 3D printing materials, electrodes, and fine chemicals production. This review summarizes the main limitations and possible solutions for industrial lignin valorization, and provides future perspectives based on its abundance and potential applications reported in scientific literature.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Jia-ming Yin, Meng-ping Quan, Zhao Wang, Jie Wang, Zhi-kun Yang, Liu-sheng Duan, Zhao-hu Li, Qing X. Li, Hong-liang Wang, Wei-ming Tan
Summary: Lignin, a renewable natural resource with UV resistance, was modified by cationic surfactants to produce microspheres encapsulating abscisic acid (ABA). The study showed that the type of surfactant and the weight percentage of lignin played a significant role in modifying the particle size, zeta potential and encapsulation efficiency of the microspheres. Among the surfactants tested, dodecyl tetramethyl ammonium bromide (DTAB) was the most effective in encapsulating ABA.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Green & Sustainable Science & Technology
Xiaona Yu, Shanshuai Chen, Weichen Wang, Tiansheng Deng, Hongliang Wang
Summary: Lignin, a versatile bioaromatic polymer, was modified by selective phenolation to enhance its phenolic hydroxyl content and achieve a more uniform structure. The resulting lignin particles were used to prepare Pickering emulsions for AVM encapsulation, leading to improved stability, anti-UV and anti-oxidant capacities. The encapsulation efficiency of AVM in the lignin-based Pickering emulsion was significantly increased, and the release of AVM could be controlled according to application demands.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Shengli Shi, Bingxin Tong, Xinfeng Wang, Wenhai Luo, Meixiu Tan, Hongliang Wang, Yong Hou
Summary: This study conducted a meta-analysis using published research data to evaluate the recovery efficiencies of nitrogen (N) and phosphorus (P) from livestock slurry using five mainstream treatment technologies. The results showed that all technologies exhibited clear recovery effects on N and P, with struvite crystallization being the most efficient treatment technology. pH levels and temperatures were found to be the main factors influencing the efficiency of ammonia stripping, struvite crystallization, and microalgae cultivation, while membrane types and properties had a significant impact on membrane filtration and air scrubbing. The recovered products, such as ammonium sulfate and struvite crystals, were found to achieve similar crop yields compared to commercial fertilizers. This study provides valuable insights into designing proper treatment technologies to reduce nutrient discharge from livestock slurry and identifies research gaps that should be further explored in the future.
Article
Chemistry, Applied
Jingxue Li, Liqin Dai, Zhefan Wang, Hao Wang, Lijing Xie, Jingpeng Chen, Chong Yan, Hong Yuan, Hongliang Wang, Chengmeng Chen
Summary: In this study, a free-standing cellulose nanofiber (CNF) separator was designed and fabricated to address the issues of polysulfides shuttle and dendrite growth in Lithium-sulfur batteries (LSBs). The CNFs with abundant polar oxygen-containing functional groups were able to chemically immobilize the polysulfides and control the surface morphology of the SEI on lithium metal, thereby suppressing dendrite formation. The pore structure of the membrane was fine-tuned by adjusting the isopropanol content in the suspension to achieve optimal electrochemical performance.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Review
Agriculture, Dairy & Animal Science
Hongliang Wang, Weitong Long, Dave Chadwick, Xiaoying Zhang, Shuai Zhang, Xiangshu Piao, Yong Hou
Summary: The overuse of antibiotic growth promoters in livestock husbandry may pose environmental and human health risks. Acidifiers have been used as alternatives to these growth promoters, but their effects on pig growth performance are not consistently positive. A systematic review and meta-analysis were conducted to determine the most effective acidifiers for improving growth performance in pig diets. Results showed that acidifiers had positive effects on growth performance compared to control diets, with the most consistent improvement observed in nursery-growing pigs. Acidifiers were less effective than antibiotics, but blends of acids showed superior results compared to individual organic acids or salts of acids.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Weichen Wang, Tian Sheng, Shanshuai Chen, Zhiyu Xiang, Fangyuan Zhou, Wanbin Zhu, Hongliang Wang
Summary: Designing highly active catalysts for selective hydrodeoxygenation of lignin-derived oxygenates is important for utilizing lignin effectively. Defect engineering in metal-organic frameworks (MOFs) is a promising strategy to tailor the properties of MOFs and synthesize high-performance catalysts. In this study, a bifunctional catalyst consisting of highly dispersed Pd nanoparticles on defective NH2-MIL-53(Al) was prepared using a facile synthetic strategy. The introduction of defects generated coordinatively unsaturated metal sites, which acted as anchor points for Pd nanoparticles and active acid sites for catalytic reactions. The catalyst exhibited outstanding catalytic performance in converting vanillin and other lignin derivatives into decarbonyl products under mild conditions. Density functional theory calculations showed that the HDO reaction mainly proceeded via hydrogenation-hydrogenolysis routes, and the synergistic interaction between Pd and defective NH2-MIL-53(Al) contributed to the catalyst's high activity. The catalyst remained active after being reused 5 times. The engineering of defects in MOFs has great potential for designing novel bifunctional catalysts for lignin valorization.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Microbiology
Lianhua Zhang, Shenfei Long, Hongliang Wang, Xiangshu Piao
Summary: This study aimed to investigate the potential influences of 25OHD(3) on pork quality, antioxidant status, and intestinal microbiota of growing-finishing pigs receiving low-phosphorus diet. The results showed that 25OHD(3) supplementation improved production performance, meat quality, antioxidant capacity, bone properties, and gut microbiota composition of the pigs.
FRONTIERS IN MICROBIOLOGY
(2023)
Review
Chemistry, Physical
Jingxue Li, Hui Jia, Shuaishuai Ma, Lijing Xie, Xian-Xian Wei, Liqin Dai, Hongliang Wang, Fangyuan Su, Cheng-Meng Chen
Summary: Supercapacitors have gained attention due to their ability to provide energy pulses in short periods. The separator, a crucial component of supercapacitors, prevents internal electronic short circuits and ensures their safety and performance. Existing cellulose-based separators have low mechanical strength or high self-discharge rates, while polyolefin-based separators lack thermal stability. Researchers have been developing advanced separators to enhance supercapacitor performance. This study explores the requirements for ideal separators, the effects of raw materials and preparation strategies, and proposes future directions for advanced separator design.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Xiaona Yu, Xue Li, Shuaishuai Ma, Yihui Wang, Wanbin Zhu, Hongliang Wang
Summary: A stable and high-performance pesticide delivery system from biomass resources was constructed using a facile in situ Pickering emulsion (PE) modification strategy. The resulting microcapsules showed improved stability, high encapsulation efficiency, and super UV protection to a hydrophobic and photo-sensitive pesticide. The microcapsules also exhibited pH and laccase dual responsiveness, enabling targeted release of the pesticide in vivo.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Agricultural Engineering
Wen-Zheng Yin, Ling-Ping Xiao, Shuang-Lin Zou, Wen-Xin Li, Hongliang Wang, Run-Cang Sun
Summary: A novel strategy using a commercial Pd/C catalyst was proposed to produce monophenolic compounds from fermented corn stover. By controlling the reaction temperature, the highest monomer yield of 28.5 wt% was achieved at 220 degrees C, compared to 22.8 wt% for pristine corn stover. The enhanced monophenol yield was attributed to higher lignin content and lower recalcitrance in the fermented stover. The results demonstrated a potential avenue for the valorization of lignin through reductive catalytic fractionation of agricultural waste.
BIORESOURCE TECHNOLOGY
(2023)
Editorial Material
Biotechnology & Applied Microbiology
Daochen Zhu, Bin Yang, Hongliang Wang, Mohd. Shahnawaz
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Agricultural Engineering
Xiaona Yu, Bin Yang, Wanbin Zhu, Tiansheng Deng, Yunqiao Pu, Arthur Ragauskas, Hongliang Wang
Summary: In the pursuit of low-carbon development, the production of diverse functional materials from renewable resources, particularly lignocellulosic biomass, is crucial. Lignin, a major component of lignocellulose, has biodegradability, biocompatibility, and low acquisition cost, making it an alternative to basic industrial materials. It can be modified and used for energy and environment applications. This review summarizes and provides a perspective on the research devoted to transforming lignin into high-value materials, including industrially established engineering materials and emerging nanomaterials.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Environmental Sciences
Jiadong Yu, Lixin Zhao, Zonglu Yao, Jing Feng, Xufeng Yuan, Hongliang Wang, Yi Liang, Jiankun Chen, Yizhuo Du, Ruixia Shen
Summary: The study investigates the synergistic characteristics of abiotic and biotic transformation to improve the methane production efficiency in thermophilic and mesophilic sequencing batch dry anaerobic digestion (SBDAD). A pilot scale experiment using corn straw and cow dung as lignocellulosic material shows significant differences in biogas production and VFA concentration and composition. The combination of first-order hydrolysis and a modified Gompertz model increases cellulose and hemicellulose conversion efficiency by 112.03% and 90.09%, respectively, at thermophilic temperatures. The microbial community exhibits different functional network relationships under the two temperature conditions. Simulation of SBD-AD engineering shows reduced heat energy consumption and increased net energy production at thermophilic temperatures.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Materials Science, Multidisciplinary
Xiaona Yu, Jie Wang, Xue Li, Shuaishuai Ma, Wanbin Zhu, Hongliang Wang
Summary: In this study, pH/laccase responsive microcapsules were prepared to protect photosensitive avermectin and achieve tunable release performances. The microcapsules showed high encapsulation efficiency, sustained release, and antiphotolysis of avermectin. Furthermore, the release of avermectin was enhanced by laccase and alkaline conditions, making the microcapsules responsive to these trigger factors.
MATERIALS ADVANCES
(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.