Article
Biochemistry & Molecular Biology
Zhengquan Yang, Mingyu Peng, Yu Li, Xiaowei Wu, Tian Gui, Yuqin Li, Fei Zhang, Xiangshu Chen, Hidetoshi Kita
Summary: In this study, a dense and acid-resistant beta zeolite membrane was used to improve the esterification of citric acid and n-butanol. The conversion of citric acid was significantly enhanced by continuously removing the by-product water via pervaporation. The high-flux beta zeolite membrane showed excellent acid resistance and promoted the esterification reaction.
Article
Chemistry, Physical
Huaigang Su, Ze Zong, Wenjing Lou, Qin Zhao, Xiaobo Wang, Xiang Feng, Yanxing Qi, Zhaoning Song
Summary: Zr active species were implanted into a ZSM-5 zeolite framework through steam treatment and the liquid-solid isomorphous substitution process, forming a solid acid catalyst. The Zr-ZSM-5-st catalyst showed excellent performance in the esterification reaction of trimethylolpropane and fatty acids, with a production yield of 94.41%. The enhanced acidity, increased surface area, and developed pore structure were found to be the key factors contributing to the catalyst's superior performance.
Article
Biotechnology & Applied Microbiology
Yajuan Wang, Wenqiang Liu, Jiangxin Li, Juan Zhang
Summary: This study focuses on the synthesis of tributyl citrate using a novel solid acid catalyst and evaluates its catalytic performance. The optimal reaction conditions were determined to be 9% (wt%) citrate mass, resulting in a conversion rate of citric acid of <= 91.74%. The catalytic activity of the catalyst remained stable even after multiple reuse. The fitted optimum conditions obtained through surface optimization were in good agreement with the experimental results.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Chemistry, Applied
Mani Durai, Sakthivel Kumaravel, Arivanandhan Mukannan, Balu Krishnakumar, Sivakumar Thiripuranthagan, Young-Ho Ahn
Summary: The study aims to synthesize ethyl valerate (EV) as a fuel additive by esterifying valeric acid with ethanol using Al-SB and x% PTA/Al-SB catalysts. Among the catalysts, the 30% PTA/Al-SB catalyst exhibited the highest catalytic activity with 96% conversion of valeric acid and 100% selectivity towards ethyl valerate. Additionally, the recyclability of the prepared catalyst was found to be excellent.
JOURNAL OF POROUS MATERIALS
(2021)
Article
Energy & Fuels
Feng Yu, Chuanhao Zhang, Ruyi Geng, Haoxiang Zhou, Qi Dong, Shoujun Liu, Binbin Fan, Ruifeng Li
Summary: NiMo/gamma-Al2O3 catalysts with different hydrogenation functions were prepared and Beta zeolites with different acidity were synthesized. The influence of the metal-acid balance on the hydrocracking of naphthalene was investigated through the coupling of NiMo/gamma-Al2O3 catalysts with Beta zeolite. The catalytic performance of the coupled catalysts depended on the hydrogenation ability of NiMo/gamma-Al2O3 and the acidity of Beta zeolite, and the Si/Al ratio, crystal size, and amount of Beta zeolite greatly affected the hydrocracking performance.
Article
Agricultural Engineering
Minghe Cao, Libo Peng, Qinglong Xie, Kainan Xing, Meizhen Lu, Jianbing Ji
Summary: The solid acid catalyst prepared by sulfonated Sargassum horneri carbon efficiently catalyzes the esterification reaction of oleic acid and methanol for biodiesel preparation. By optimizing the conditions, the conversion rate of oleic acid can reach 96.4%, and the catalyst can still maintain a high conversion rate after four cycles of use.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Jizhou Ren, Yana Li, Qinbao Lin, Zenghui Li, Guoquan Zhang
Summary: By adding ATBC and TP, the mechanical properties of PLA packaging films can be significantly improved, along with enhanced antioxidant and antibacterial activities. The PLA/ATBC/TP films show potential for active packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Energy & Fuels
Siyi Tang, Xiaoling Duan, Qingyu Zhang, Cunwen Wang, Weiguo Wang, Weiliang Feng, Tielin Wang
Summary: This paper focuses on the preparation of environmentally friendly biomass carbon-based solid acid catalysts from black soldier fly larvae shells, showing that the synthesized catalysts have high conversion rate under optimal conditions. The stability and reusability of the catalysts were also demonstrated.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Chemistry, Multidisciplinary
Susung Lee, Younghwan Park, Yaejun Baik, Jeong-Chul Kim, Yongjin Lee, Minkee Choi
Summary: Researchers report that meso-/microporous hierarchical LTL zeolite shows unprecedentedly high activity, selectivity, and stability. The one-dimensional cage-like micropores promote the bimolecular reaction between intermediates, selectively producing 4,4'-MDA and inhibiting the formation of undesired isomers and oligomers. The secondary mesopores alleviate mass transfer limitations, leading to a 7.8-fold higher MDA formation rate compared to microporous LTL zeolite alone.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Nino Rinaldi, Nova Dwi Enjelina Purba, Anis Kristiani, Egi Agustian, Robert Ronal Widjaya, Adid Adep Dwiatmoko
Summary: This study explores the effect of sonication on the pillarization process of bentonite. It is found that using sonication can significantly reduce the pillarization time and enhance the porosity and acidity of the prepared solid acid catalyst. As a result, the conversion of the esterification reaction is improved.
CATALYSIS COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Omid Mazaheri, Ali Zavabeti, Rebecca V. Mcquillan, Zhixing Lin, Masood S. Alivand, Enrico Della Gaspera, Deli Chen, Frank Caruso, Helen Suter, Kathryn A. Mumford
Summary: A solvent-free mechanochemical method has been developed for synthesizing urea-encapsulated metal-phenolic networks as controlled-release fertilizers (CRFs). The matrices show tunable mechanical resistance, crystallinity, stiffness, and wettability properties by rearranging the internal structure of the networks and their interaction with the encapsulated urea crystals. As CRFs, the urea-MPN matrices can be tuned to prolong the release of urea depending on the treatment applied.
CHEMISTRY OF MATERIALS
(2023)
Article
Agricultural Engineering
Alchris Woo L. Go, Yi Chang Xiao, Kristelle Quijote, Chintya Gunarto, Roxanne Kathlyn O. Alivio, Yi-Hsu Ju, Artik Elisa Angkawijaya, Shella Permatasari Santoso
Summary: This study presents a new approach and concept for the conversion of sugarcane bagasse (SCB) generated in the commercial sector, and successfully synthesizes a high-value product, solid acid catalyst (SAC). By conducting dilute acid hydrolysis (DAH) and drying carbonization sulfonation processes, SCB was transformed into carbonized and sulfonated post-hydrolysis SCB (PHSCB). The synthesized catalyst showed excellent conversion performance in biodiesel production.
BIOMASS & BIOENERGY
(2022)
Article
Chemistry, Applied
Jun Liang, Xiangcheng Li, Chuang Liu, Zhangping Shi, Yu Wang, Wenhua Fu, Zhiqing Yuan, Zhendong Wang, Weimin Yang
Summary: A new zeolite, SCM-39, has been successfully synthesized directly as the first aluminosilicate analog of ATS-type zeolite. SCM-39 exhibits excellent hydrothermal stability and abundant acid sites, and shows superior catalytic performances in the disproportionation of toluene and self-condensation of cyclohexanone compared to MOR zeolite.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qiang Yu, Yonghua Guo, Xiaoxia Wu, Zijun Yang, Hua Wang, Qingfeng Ge, Xinli Zhu
Summary: The use of Lewis acidic heteroatom Zr-Beta zeolite shows promising results for the ketonization of biomass derived carboxylic acids, exhibiting good stability and high selectivity, making it a potential catalyst for ketone synthesis.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Thermodynamics
Bingxin Zhang, Ming Gao, Weiqi Tang, Xiaona Wang, Chuanfu Wu, Qunhui Wang, Siu Ming Cheung, Xiankun Chen
Summary: This study investigated the effect of various reagents on the esterification activities of carbon-based solid acid catalysts. The results showed that the density of sulphonic acid groups in the catalyst positively correlated with the esterification efficiency, and the high lignin content of biomass stimulated the loading of sulphonic acid groups. The bamboo powder pretreated with 1% H2SO4 yielded the highest lignin content and esterification efficiency.
Article
Pharmacology & Pharmacy
Demin Li, Ge Zhang, Zeyu Wang, Jiacheng Guo, Yu Liu, Yongzheng Lu, Zhen Qin, Yanyan Xu, Chang Cao, Bo Wang, Qianqian Guo, Yunzhe Wang, Guozhen Liu, Xiaolin Cui, Jinying Zhang, Junnan Tang
Summary: Cardiovascular diseases (CVDs) are the leading causes of mortality worldwide. Myocardial infarction (MI), a type of CVD, induces excessive reactive oxygen species (ROS), leading to cell death and heart failure. Recent evidence suggests that ROS-induced lipid peroxidation promotes autophagy and ferroptosis, which contribute to cardiac tissue dysfunction. Idebenone, an analog of CoQ10, inhibits ferroptosis and preserves cardiac function by improving mitochondrial physiology. The ROS-AMPK-mTOR pathway is identified as the signaling pathway stimulated by idebenone to prevent excessive autophagy and ferroptosis. In an MI animal model, idebenone demonstrates cardioprotection by regulating ROS-dependent autophagy and inhibiting ferroptosis.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2023)
Article
Chemistry, Physical
Wenrui Li, Jianning Lv, Di Liu, Wenjun Cai, Xianchun Chen, Qirui Huang, Lu Wang, Bo Wang
Summary: In this study, porous CeO2-supported IrOx clusters with different oxygen vacancy concentrations were successfully synthesized using N-rich and N-free isostructural Ce-based metal-organic frameworks as templates. The optimized IrOx/CeO2 catalyst showed low overpotential, high turnover frequency, and outstanding durability, making it a promising candidate for proton exchange membrane water electrolysis.
CHEMISTRY OF MATERIALS
(2023)
Review
Food Science & Technology
Mengge Li, Cunshan Zhou, Bo Wang, Shiyu Zeng, Rongyi Mu, Guohua Li, Bingzheng Li, Weiqiao Lv
Summary: Microwave is an electromagnetic wave of specific frequencies (300 MHz-3000 GHz), while ultrasonic is a mechanical wave of specific frequencies. The combination of ultrasonic and microwave technology has been used as an improvement technique in food processing. This paper provides an overview of the principles and characteristics of ultrasonic- and microwave-assisted food processing techniques, particularly their combinations, equipment design, and applications in various food processing methods such as thawing, drying, frying, extraction, and sterilization. The synergy of microwave heating and the cavitation effect of ultrasonic improves processing efficiency and damages the cell structure of the material, while reducing nutrient degradation and energy consumption.
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
(2023)
Article
Chemistry, Multidisciplinary
Shuo Tao, Lei Wang, Zhili Wang, Xiaolei Li, Xue Li, Yujie Wang, Bo Wang, Wenwen Zi, Ying Wei, Kuizhi Chen, Zhijian Tian, Guangjin Hou
Summary: Due to the interest in applications of zeolitic materials and challenges associated with traditional synthesis methods, a new synthesis approach for aluminophosphate (AlPO) zeotypes has been developed. By calcinating amorphous precursors at moderate temperatures and short reaction times, highly crystalline AlPO zeotypes with various topologies have been successfully synthesized. Multinuclear multidimensional solid-state NMR techniques combined with complementary characterizations reveal the catalytic role of fluoride and the directing role of organic structure-directing agents in the synthesis process. This novel synthesis strategy not only shows excellent efficiency, but also sheds new light on the crystallization mechanism of zeolitic materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Engineering, Chemical
Lijun Wang, Shuai Zhang, Yunpeng Gao, Tao Cui, Zhao Ma, Bo Wang
Summary: Maize cleaning is an important process in maize cleaning operations. In order to improve the screening performance of the bionic screen, the screening process of maize mixture was simulated using CFD-DEM and validated experimentally. The study investigated the behavior of grains penetrating the bionic screen under different gestures. The results showed that grains exhibiting sliding and rolling behavior were more likely to penetrate the screen holes.
Article
Chemistry, Applied
Qiang Lv, Yajie Song, Bo Wang, Shangjie Wang, Bochen Wu, Yutong Jing, Huaizheng Ren, Shengbo Yang, Lei Wang, Lihui Xiao, Dianlong Wang, Huakun Liu, Shixue Dou
Summary: A bifunctional flame retardant solid polymer electrolyte (SPE) is designed by combining hydroxyapatite (HAP) nanomaterials and N-methyl pyrrolidone (NMP) with the PVDF-HFP matrix. The prepared SPE shows superior ionic conductivity, excellent fireproof properties, and strong resistance to Li dendrites.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Wenkai Shao, Zilin Li, Bo Wang, Song Gong, Ping Wang, Beite Song, Zhixiang Chen, Yong Feng
Summary: Endothelial impairment is closely related to the pathogenesis of steroid-associated osteonecrosis of the femoral head (SONFH). Hypoxia inducible factor-1a (HIF-1 alpha) plays a crucial role in maintaining endothelial homeostasis. Dimethyloxalylglycine (DMOG) can promote HIF-1 alpha signaling pathway and alleviate the effects of methylprednisolone (MPS) on endothelial progenitor cells (EPCs) by inhibiting colony formation, migration, angiogenesis, and stimulating senescence of EPCs.
Article
Microbiology
Fei Liu, Shi-Hui Wang, Ding-Hong Jia, Hao Tan, Bo Wang, Rui-Lin Zhao
Summary: We developed a method for identifying F. filiformis strains using MNP-seq. By screening 179 universal MNP markers and constructing an MNP sequence library, we built a neighbor-joining phylogenetic tree of 232 cultivated and wild strains. Our analysis showed that all cultivars could be accurately separated and categorized into 22 distinct evolutionary pedigrees based on genetic similarity values.
Article
Chemistry, Multidisciplinary
Qirui Huang, Linyu Hu, Xianchun Chen, Wenjun Cai, Lu Wang, Bo Wang
Summary: This article reports the fine regulation of mesopores in N-doped carbon materials by pyrolyzing metal-triazolate (MET) frameworks with different particle sizes and ramp rates. The higher thermal transfer rates caused by smaller particle size and higher ramp rate result in more violent decomposition and larger mesopores in the derivatives. Consequently, a series of N-doped carbon materials with controllable mesopores are obtained. As a proof-of-concept, high-performance electrocatalysts for oxygen reduction reaction are achieved by encapsulating ultrafine Pt nanoparticles inside these mesopores.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Physics, Applied
Yonghai Guo, Yu Zhang, Wenbo Lv, Bo Wang, Bo Zhang, Jiangwei Cao
Summary: Seeking magnetic heterostructures with large current-induced torque efficiency is a hot topic in spintronics. This study reports the large and composition-dependent damping-like torque in a structure composed of light metals Cr and Ti layers and a ferrimagnetic Tb-Co layer. The efficient current-induced magnetization reversal and large torque in the Ti/Tb-Co/Cr structures may originate from the orbital Hall effect in the Cr metal. This work demonstrates the enhancement of the orbital torque effect using a magnetic layer containing an element with strong spin-orbit coupling.
APPLIED PHYSICS LETTERS
(2023)
Article
Thermodynamics
Lipeng Liu, Ying Lu, Mingze Xia, Bo Wang, Yi Cheng, Zhiyong Wei
Summary: Aliphatic polycarbonates (APCs) have been synthesized using dimethyl carbonate (DMC) and different lengths of aliphatic diols, showing increased flexibility and crystallization with more methylene groups in the repeating units. However, the rigidity of the ester group affected the strength and Young's modulus of APCs, which decreased and then increased. Brill transition increased the distance between intermolecular chains, affecting the barrier properties of poly(octamethylene carbonate).
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Materials Science, Multidisciplinary
Shanshan Song, Tingting Hao, Bo Wang, Dongqi Liu, Zichen Ren, Yike Zhang, Wenchao Liu, Leipeng Zhang, Yao Li
Summary: Colored films with high transparency are prepared using IR low-absorptive inorganic pigments and IR high-transparent polymer. The information transmission in the IR band is realized by controlling the thermal radiation characteristics of IR electrochromic devices. A thermochromic and IR transparent functional layer is introduced by incorporating thermochromic microcapsules, which enables separate spectral modulation ability in the visible and IR region. The device configuration holds promising potential for applications in anti-counterfeiting, optical security, and more.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Weiyi Yu, Bo Wang, Hong Zou, Jiahao Li, Xiaofeng Wang, Jinhai Huang, Liqun Liu, Linjian Huang, Xu Yang, Guoding Chen, Liang Lei, Qu Wang
Summary: In this paper, a sandwich structure two-port transmission beam splitter with two-layer array is proposed. The structure and parameters of the grating are analyzed and optimized using rigorous coupled-wave analysis and simulated annealing algorithm to achieve high efficiency diffraction and zero order suppression. The diffraction efficiency of the grating at +/- 1st transverse magnetic polarization and transverse polarization is 48.83% and 49.12% respectively at normal incidence of 800 nm light. The grating can still maintain high efficiency within the process tolerance range of some parameters (including incident wavelength, duty cycle, incident angle and grating period).
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS
(2023)
Article
Energy & Fuels
Xingyuan Cheng, Jie Gu, Bingtian Huang, Liancheng Bing, Dezhi Han, Guangjian Wang, Fang Wang
Summary: In this study, various metal-modified ZSM-5 zeolite adsorbents were prepared by the impregnation method and applied to the removal of organic chlorides from model naphtha. The adsorption performance and regeneration stability were investigated, and the Mg/ZSM-5 zeolite adsorbent showed the best dechlorination and regeneration performance. The introduction of the metal significantly influenced the acidic properties of the catalyst surface.
CHINA PETROLEUM PROCESSING & PETROCHEMICAL TECHNOLOGY
(2023)
Article
Chemistry, Physical
Xinyu Yu, Xin Huang, Mengchu Feng, Yuanyuan Zhang, Bo Wang
Summary: The design and synthesis of metal-organic frameworks (MOFs) with supramolecular motifs enable efficient separation of propylene/propane through the construction of distinct topologies and channels. The study demonstrates the successful separation of propylene/propane using a MOF structure with wide cavities, narrow bottlenecks, and an optimal pore size, as confirmed by dynamic breakthrough experiments and molecular dynamics simulations.
JOURNAL OF MATERIALS CHEMISTRY A
(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.