Article
Energy & Fuels
Jinlin Han, Yu Wang, L. M. T. Somers, Bert van de Beld
Summary: This study investigates the ignition behavior and combustion process of hydrotreated pyrolysis oil (HPO) derived from different biomass resources. The results show that HPO has a longer ignition delay compared to commercially available biofuels and fossil fuels. The biomass type and after-treatment have a small influence on the ignition delay of HPO.
Article
Energy & Fuels
Samy A. Alkhayat, Gaurav D. Joshi, Naeim Henein
Summary: This study aims to investigate the auto-ignition behavior of HVO and ULSD blends, determine derived cetane numbers using LabVIEW and ASTM standards, and analyze the effect of ignition delay on auto-ignition. Correlations for ignition delay of different blends are developed for future use in combustion research modeling and engine control unit design.
Article
Fisheries
Jiale He, Tao Liu, Xinzhi Weng, Puqiang Zheng, Hanyin Xu, Jiteng Wang, Tao Han
Summary: In this 8-week feeding trial, the effects of different lipid sources on the growth performance and tissue fatty acid composition of Oplegnathus punctatus were studied. The complete substitution of fish oil with linseed oil had no negative effect on the feed utilization and growth performance of O. punctatus. In fact, the linseed oil group showed better growth performance and higher tissue fatty acid content compared to the other vegetable oil groups.
AQUACULTURE REPORTS
(2022)
Article
Nanoscience & Nanotechnology
Ji-Ling Su, Juan Wang, Xiao-Na Fu, Li Hou, Ping Zhu, Kai Zhang, Huo-Wang Li, Ying Hou, Xiang-Yi Liu, Juan Xu
Summary: This study investigated the properties, fatty acid compositions, and thermal characteristics of Malania oleifera seed oil (MOSO). It found that MOSO is a rich source of essential fatty acids and nervonic acid (NA), making it a potential resource for health supplements and medicines.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Energy & Fuels
Dianne Luning Prak, Michael Hamilton, Rhea Banados, Jim Cowart
Summary: This study investigates the physical properties and combustion behavior of blends of military jet fuel JP-5 with biodiesels synthesized from 13 plant oils, bacon grease, and duck fat. The biodiesels were found to have higher densities and viscosities than the maximum allowable limits for military diesel fuel, but their flash points and cetane numbers mostly met the requirements. Combustion experiments showed that blending 20% biodiesel with JP-5 had minimal impact on the combustion characteristics in a diesel engine.
Article
Energy & Fuels
Yushin Naito, Kengo Ueda, Nozomu Hashimoto, Masahide Takagi, Satoshi Kawauchi, Yasuo Imai, Manabu Watanabe, Takayuki Hasegawa, Toshiaki Hayashi, Yusuke Suganuma, Hiroshi Nomura, Osamu Fujita
Summary: The authors conducted droplet evaporation experiments of light cycle oil (LCO) at different ambient temperatures and pressures, revealing significant differences in droplet lifetime among different fuel species at low ambient temperatures. They found a stronger relationship between droplet lifetime and late-stage distillation temperature at low ambient temperature and high pressure. By analyzing chemical species properties, it was clarified that the mass evaporation rate is smaller than internal diffusion, and droplet lifetime is independent of cetane index.
Article
Biotechnology & Applied Microbiology
Alejandro Gonzalez-Benjumea, Gisela Marques, Owik M. Herold-Majumdar, Jan Kiebist, Katrin Scheibner, Jose C. del Rio, Angel T. Martinez, Ana Gutierrez
Summary: Enzymatic conversion of vegetable oils into epoxide derivatives shows potential for industrial applications, with different peroxygenases demonstrating varying oxygenation selectivities. The enzymes exhibit high selectivity towards epoxidation, forming pure epoxides, hydroxylated derivatives, and triepoxides depending on the specific fatty acids present in the oils. This environmentally friendly approach offers promising opportunities for the production of reactive fatty-acid epoxides.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Energy & Fuels
Ines A. S. Ferrao, Andre R. R. Silva, Ana S. O. H. Moita, Miguel A. A. Mendes, Mario M. G. Costa
Summary: This study investigates the effects of adding aluminum nanoparticles of different sizes and concentrations to biofuel on combustion characteristics. Results show that the addition of nanoparticles enhances the combustion characteristics of pure biofuel, with a slight increase in burning rate observed with smaller particle sizes and a pronounced increase with higher concentrations.
Article
Environmental Sciences
Chiew Tin Lee, Mei Bao Lee, Guo Ren Mong, William Woei Fong Chong
Summary: Vegetable oil-based bio-lubricants have the potential to replace mineral oil-based lubricants due to their biodegradability and renewability. However, there is a lack of detailed research on the tribological and physicochemical properties of these bio-lubricants. This study conducted a bibliometric analysis to examine the focus, trend, and future direction of vegetable oil-based bio-lubricants.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Food Science & Technology
Godfrey Elijah Zharare, Arindo Lukawu Akweni, Mathilda Mostert, Andrew Rowland Opoku
Summary: A study was conducted to analyze the oil content, physiochemical properties, and fatty acid composition of Strychnos madagascariensis seed coat. The results suggest that Strychnos madagascariensis has the potential to be a valuable source of vegetable oil.
Article
Engineering, Electrical & Electronic
Ogi Sopian, Hadi Teguh Yudistira, Fitrah Qalbina, Rico Aditia Prahmana, Adhitya Gandaryus Saputro, Amir Faisal
Summary: This study aims to design and analyze a microwave metamaterial based on a single split-ring resonator (SRR) that can detect the composition of vegetable oil and gasoline mixtures. The experimental results show that the microwave metamaterial is able to detect the volume composition of the mixtures by shifting resonance frequency, and it significantly affects the permittivity and refractive indexes of vegetable oil and gasoline samples of different compositions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Green & Sustainable Science & Technology
J. San Jose, M. A. Sanz-Tejedor, Y. Arroyo, P. Stoychev
Summary: The combustion performance and pollutant emissions of a vegetable oils blend were studied, showing excellent performance and low emissions. Comparison of combustion results under different conditions revealed that un-preheated vegetable oil with an Amid airflow rate had virtually negligible CO emissions.
Article
Energy & Fuels
Mohammed Alabbad, Touqeer Anwar Kashif, Ribhu Gautam, Khalid Aljohani, Edwin Guevara Romero, Aamir Farooq
Summary: This study conducted pyrolysis experiments on heavy fuel oil (HFO) and vacuum residual oil (VRO) to analyze the composition of the products. The results showed similar pyrolysis products from HFO and VRO. The reactivity of the mixture was further studied by measuring ignition delay times (IDTs) of major components of the gas products and benzene and naphthalene derivatives in the liquid products.
Article
Engineering, Chemical
Sofia M. Kosolapova, Makar S. Smal, Viacheslav A. Rudko, Igor N. Pyagay
Summary: Countries invest in and incentivize the production of liquid biofuels due to the recognized advantages in social, economic, and environmental aspects. This study focuses on the synthesis of fatty acid esters in order to increase the reaction kinetics. Various parameters were studied using magnetic stirred tank reactors with a homogeneous alkaline catalyst. The results show the potential of using a continuous reactor system to produce fatty acid esters from linoleic raw materials containing up to 16% free fatty acids, indicating the possibility of utilizing second generation biofuel feedstock.
Article
Engineering, Environmental
Ya-Jie Wang, Xu-Yang Wang, Hong Xu, Wei-Wei Ren, Rui Pang, Li Yang, Wen-Chao Tong, Qian-You Wang, Shuang-Quan Zang
Summary: A series of unprecedented one-dimensional copper bromide-based inorganic-organic hybrids were synthesized as hypergolic fuels. In the absence of promoters, all 1D hybrids showed good hypergolic activity towards oxidant HTP. The structure-performance relationships revealed that the abundant copper alkynyl bonds distributed in the 1D infinite Cu-Br chain greatly promoted the hypergolic efficiency. This work demonstrates the potential applications of these hybrids combined with HTP as green hypergolic bipropellants for rockets.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Peter Emberger, Dietrich Hebecker, Peter Pickel, Edgar Remmele, Klaus Thuneke
BIOMASS & BIOENERGY
(2015)
Article
Energy & Fuels
Peter Emberger, Dietrich Hebecker, Peter Pickel, Edgar Remmele, Klaus Thuneke
Article
Chemistry, Applied
Matthias Plank, Georg Wachtmeister, Edgar Remmele, Klaus Thuneke, Peter Emberger
FUEL PROCESSING TECHNOLOGY
(2017)
Article
Agricultural Engineering
Johannes Ettl, Heinz Bernhardt, Peter Pickel, Edgar Remmele, Klaus Thuneke, Peter Emberger
BIOSYSTEMS ENGINEERING
(2018)
Article
Green & Sustainable Science & Technology
Peter Emberger, Michael Hinrichs, Georg Huber, Agnes Emberger-Klein, Klaus Thuneke, Peter Pickel, Edgar Remmele
Summary: The study conducted field tests using pure rapeseed oil fuel in forest machinery to operate a modern forest harvester successfully, indicating compliance with emission requirements.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Energy & Fuels
Peter Emberger, Robert Altmann, Juergen Gebhard, Klaus Thuneke, Markus Winkler, Georg Toepfer, Hans-Peter Rabl, Edgar Remmele
Summary: The research investigates the differences in ignition and combustion behavior between pure rapeseed oil fuel (R100) and diesel fuel (DF). Adjusting the injection settings is necessary to achieve optimized combustion of R100, with specific adjustments needed for different load conditions.
Article
Multidisciplinary Sciences
Johannes Ettl, Heinz Bernhardt, Georg Huber, Klaus Thuneke, Edgar Remmele, Peter Emberger
SN APPLIED SCIENCES
(2020)
Proceedings Paper
Agricultural Engineering
J. Ettl, K. Thuneke, E. Remmele, P. Emberger, G. Huber, H. Bernhardt
LAND, TECHNIK AGENG 2017: THE FORUM FOR AGRICULTURAL ENGINEERING INNOVATIONS (VDI-MEG 2017)
(2017)
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.