Article
Energy & Fuels
Shao-Xu Mao, Qi-Hang Zhou, Hui-Li Guo, Ming Du, Wen-Shuai Zhu, Hua-Ming Li, Jing-Yu Pang, Dong-Bin Dang, Yan Bai
Summary: This article reports a novel porous phosphomolybdate-based poly(ionic liquid) catalyst with 70% water (PDIM-PMo-W70%). The catalyst showed a turnover frequency (TOF) value of 41.15 h-1 for dibenzothiophene (DBT) removal, which was 35.47 and 9.92 times higher than that of HPMo and PDIM-PMo, respectively. The effects of water content, reaction temperature, H2O2/S molar ratio, catalyst dosage, and different sulfur-containing compounds on the oxidative desulfurization (ODS) performance were investigated in detail.
Article
Chemistry, Multidisciplinary
Yan Gao, Lilong Yang, Zhe Liu, Ruimin Gao, Guangfa Hu, Jianshe Zhao
Summary: A series of PIL-based POM salts were designed and synthesized, and supported catalysts were prepared for oxidative organic sulfide extraction in fuel oils. The supported catalyst showed better performance with maximum sulfur removal efficiencies up to 98.32% to 99.98%. The catalyst can be easily recovered and reused without significant activity decrease.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Suhang Xun, Rongmin Le, Chenchao Hu, Desheng Liu, Songmei Wang, Minqiang He, Wenshuai Zhu, Huaming Li
Summary: In this study, supported catalysts V2O5/3D g-C3N4 were prepared using a solvothermal method and programmed calcination, with a vanadium-based ionic liquid (V-IL) [(C8H17)3NCH3]3H3V10O28 as the vanadium source and 3D porous carbon nitride (3D g-C3N4) as the carrier. The use of V-IL promoted the high dispersion of V2O5 on the carrier and effectively avoided agglomeration. As a result, the catalytic oxidative desulfurization activity of V2O5/3D g-C3N4 was greatly enhanced, reducing the content of dibenzothiophene in model oil to 1.2 ppm under appropriate conditions. The recycling capacity and the possible process of oxidative desulfurization were also discussed.
Article
Energy & Fuels
Suhang Xun, Rongmin Le, Chenchao Hu, Desheng Liu, Songmei Wang, Minqiang He, Wenshuai Zhu, Huaming Li
Summary: A series of supported catalysts V2O5/3D g-C3N4 were prepared using a solvothermal method and programmed calcination. The use of a vanadium-based ionic liquid (V-IL) promoted the high dispersion of V2O5 on the carrier and effectively prevented agglomeration. As a result, the catalytic oxidative desulfurization activity of V2O5/3D g-C3N4 was greatly enhanced, reducing the content of dibenzothiophene in model oil to 1.2 ppm under appropriate conditions. The recycling capacity and the possible process of oxidative desulfurization were also discussed.
Article
Chemistry, Physical
Yang Xu, Xueao Jiang, Zhaoen Liu, Zhengjian Chen, Shiguo Zhang, Yan Zhang
Summary: In this study, novel ionogels were designed by in situ UV radiation-induced chemically crosslinked polymerization without additional lithium salt. The obtained ionogels exhibit nonflammability, favorable thermal and mechanical features, high ionic conductivity, and interestingly adhesive ability with the Li anode.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Hanxiang Chen, Shuting Hou, Haoyuan Cui, Chao Wang, Ming Zhang, Hongping Li, Hui Xu, Jiqing Wu, Wenshuai Zhu
Summary: The interfacial properties and active site distribution of catalysts have a significant impact on catalytic oxidative desulfurization activity, which has been a research focus in recent years. In this study, an amphiphilic and polyoxometalate poly(ionic liquids) were prepared through cross-linking copolymerization and ion exchange reaction for desulfurization in fuel. The resulting sample, p-C2VIM-DVB-2-PMo, exhibited enhanced desulfurization performance and good thermal stability, meeting the requirements for deep desulfurization. Density functional theory calculations were also utilized to investigate the adsorption strength and interaction nature between the cation and sulfide compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Environmental
Jian Wang, Biao Yang, Xuelian Peng, Yongcong Ding, Shanshan Yu, Fuqing Zhang, Linfeng Zhang, Huadong Wu, Jia Guo
Summary: A novel polyoxometalate-based ionic liquid salt [MIMPs]3PMo6W6O40 was designed and used as a catalyst in oxidative desulfurization, showing high activity in removing sulfur compounds with a low O/S molar ratio. The catalyst also exhibited excellent recyclability and efficiency in reducing sulfur compounds in real diesel.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
M. Christina Nilavu, B. Arunraj, Himanshu Aggarwal, N. Rajesh
Summary: By oxidizing and modifying carbon from Prosopis juliflora wood, sulfur removal from model fuel oil was efficiently achieved via adsorption with ultrasound assistance. The adsorbent exhibited a high specific surface area and mesoporous structure, leading to excellent removal efficiency for Dibenzothiophene. The adsorption process was thermodynamically favorable and followed pseudo-second-order kinetics.
Article
Chemistry, Physical
Ao Li, Hongyan Song, Hong Meng, Yingzhou Lu, Chunxi Li
Summary: The preparation of SiO2@V-PIL nano core-shell catalyst can significantly enhance the oxidation rate of sulfides and retain 99% of catalytic performance after 5 recycled uses, showing potential for upgrading the catalytic activity of composite catalysts.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Energy & Fuels
Xin Wang, Junkai Chong, Shuoyang Liang, Min Guo, Mei Zhang
Summary: Sorbents of Mn doped CuO loading on alumina particles were successfully synthesized by hydrothermal method for capturing H2S at low-temperature in a dry and anaerobic environment. The effects of calcination temperature and Cu/Mn molar ratio on the desulfurization performance were investigated. The prepared sorbent showed improved breakthrough H2S capacity and CuO active component utilization.
Article
Chemistry, Multidisciplinary
Argam Akopyan, Polina D. Polikarpova, Nina Arzyaeva, Alexander Anisimov, Olga Maslova, Olga Senko, Elena N. Efremenko
Summary: This study investigated the effect of the hydrophobicity of mesoporous silicate SBA-15 on the catalytic activity and service life in the peroxide oxidation of sulfur-containing compounds. The immobilization of molybdate anion on SBA-15 support resulted in lower reaction temperature and longer catalyst lifespan. The hydrophobic catalyst showed insensitivity to initial sulfur content and hydrogen peroxide amount, retaining activity for at least six oxidation cycles.
Article
Materials Science, Multidisciplinary
Lu Yu, Le Yu, Yitong Peng, Xiwei Lan, Xianluo Hu
Summary: This study presents a novel poly(ionic liquid) nanofiber membrane separator that exhibits high Li+ conductivity, nonflammability, excellent thermal stability, and good wettability with ionic liquid electrolytes. The separator improves the transport kinetics of Li+ ions and enables safer lithium-metal batteries.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Physical
Meng Yao, Haitao Zhang, Kun Dong, Bosen Li, Chunxian Xing, Manyu Dang, Suojiang Zhang
Summary: Novel solid polymer electrolytes (SPEs) with enhanced Li+ ion migration exhibit outstanding ionic conductivity and electrochemical stability, making them suitable for next-generation solid lithium metal batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Javid Safarov, Pramod Nachhu, Egon Hassel, Karsten Mueller
Summary: This study reported the density, dynamic viscosity, heat capacity, and speed of sound of 1-ethyl-3-methylimidazolium dicyanamide [EMIM][DCA] at different temperatures and pressures. Experimental data was correlated using an equation of state to calculate various thermophysical properties.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Yue Du, Jiacheng Hu, Yongxu Jin, Yisi Liu, Qiyun Pan, Kai Wang, Lina Zhou, Zhenhui Liu, Xiaodi Du
Summary: A new solvent-free strategy for synthesizing mesoporous metal-based ionic liquid/TiO2 composite has been developed in this study, showing excellent performance in catalytic oxidation reaction to remove organic sulfur compounds effectively from model fuel.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
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.