Article
Energy & Fuels
Qian Huang, Hongying Li, Yu Zhuang, Yifei Ding, Chenbo Ma, Chaohui Chen, Yiwei Xie, Huaqing Liang, Shanpeng Han, Jinjun Zhang
Summary: The application of an electric field perpendicular to the flow direction can achieve viscosity reduction in waxy crude oil, similar to that obtained with an electric field parallel to the flow direction. Additionally, higher electric field strength and lower oil temperature result in more significant viscosity reduction, with viscosity recovering gradually after the electric field is removed.
Article
Mechanics
Shanzhe Zhang, Xiaorong Sun, Sining Yan, Cuiling Liu, Xinyang Miao, Kun Zhao
Summary: This paper investigates the use of laser technology to reduce the viscosity of high-viscosity oil. Through studying the changes in voltage, temperature, and viscosity under laser irradiation, as well as the effect of laser on the liquid, the importance of laser technology in viscosity reduction is highlighted.
Article
Energy & Fuels
Raheek I. Ibrahim, Manal K. Oudah, Amna M. Al-Mufti
Summary: The key idea of this study is to reduce the viscosity of Iraqi crude oil at low temperatures and enhance its rheological properties by adding graphene. The results show that under the optimal conditions, the dynamic viscosity of the crude oil can be significantly reduced and the mass flow rate can be improved.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Chen Jiang, Linyuan Guo, Yuanzhe Li, Shaowei Li, Yu Tian, Liran Ma, Jianbin Luo
Summary: The study found that reducing crude oil viscosity by applying an external magnetic field can save energy and bring economic benefits, especially for low-temperature pipeline transportation. High-intensity magnetic fields can not only reduce the viscosity of high waxy crude oil, but also decrease the viscosity of heavy oil with high content of heavy components.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Chaoyue Zhang, Jinjun Zhang, Jiabao Kang, Yiwei Xie, Shanpeng Han, Hongying Li
Summary: Electrical treatment is an emerging method to improve the cold flowability of waxy crude oil. This study investigates the effect of AC electric fields on the oil's viscosity and yield stress. The results show that AC electric fields can also improve the cold flowability, but to a lesser extent compared to DC fields. The frequency and waveform of the AC field have an impact on its electrorheological effect.
Article
Chemistry, Physical
M. R. Mardani, D. D. Ganji, Kh Hosseinzadeh
Summary: This study investigates the movement and coalescence of dual droplets in a channel exposed to an external electric field. Computational fluid dynamics is used to develop an electro hydrodynamic and electrostatic model. The results show that increasing velocity decreases the coalescence time of the droplets, while increasing the electrostatic field intensity reduces the coalescence time and improves the coalescence efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Multidisciplinary
Haijun Luo, Jiangbo Wen, Rong Jiang, Qianqian Shao, Zhihua Wang
Summary: This study investigates the influence of water cut on the viscosity characteristics of crude oil emulsion and establishes a prediction model for the phase inversion point. The results show that the viscosity of stable W/O emulsion decreases with increasing shear rate and temperature while increasing with the water cut. The viscosity of unstable O/W emulsion decreases with increasing shear rate, water cut, and temperature. The prediction model based on crude oil physical properties achieves a mean relative deviation of 2.9%.
Article
Chemistry, Physical
Fujun Sheng, Jie Zhang, Shuang Yang, Guangyu Sun, Chuanxian Li, Fei Yang, Bo Yao, Xiaobin Jiang, Yangyang Zhou
Summary: In this study, the effects of crude oil viscosity and wax precipitation on foaming characteristics were investigated using the depressurization method. The results showed that the foamability of crude oil tends to decrease with increasing temperature below the wax appearance temperature (WAT). However, above the WAT, the foamability weakens drastically and remains relatively constant with temperature. The dominant factor affecting foamability was found to be the temperature-induced change in oil phase viscosity. Additionally, the foam stability decreased significantly with increasing temperature, which was attributed to the decrease in interfacial dilational modulus and the weakened film strength at the crude oil-CO2 interface.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Energy & Fuels
Gang Chen, Zhichao Zhou, Xiaodan Shi, Xiaolong Zhang, Sanbao Dong, Jie Zhang
Summary: The study found that chromium alkylbenzenesulfonate and zinc alkylbenzenesulfonate are the most effective crude oil flow improvers, significantly reducing the viscosity and pour point of the crude oil, with promising application potential in enhancing heavy oil recovery.
Review
Engineering, Chemical
Ana M. Sousa, Henrique A. Matos, Maria J. Pereira
Summary: The study reviewed the main principles affecting emulsions, the influence of water fraction on flow patterns, the equations for estimating physical properties, and the methods for identifying or characterizing emulsions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Energy & Fuels
Temurali Kholmurodov, Arash Tajik, Abdolreza Farhadian, Oybek Mirzayev, Pooya Tahay, Alexey V. Vakhin, Alimorad Rashidi
Summary: This study aims to fill the research gap of using aromatic ligands in catalyst synthesis for catalytic aquathermolysis of heavy oil. The developed oil-soluble catalyst (Ni-OSC) using catechol as a novel ligand effectively interacts with heavy oil fractions, reducing the content of resin and asphaltene and increasing the amounts of saturated and aromatic hydrocarbons. GC-MS analysis revealed an increase in low molecular weight hydrocarbons and a higher concentration of alkanes and aromatic hydrocarbons in the presence of Ni-OSC, improving the quality and recovery of heavy oil.
Article
Chemistry, Multidisciplinary
Jinfa Zhang, Yingzhu Guan, Ting Li, Guojun Yin
Summary: The solubility of CO2 in water-bearing crude oil is crucial for crude oil reserves calculation and the development of CO2-related technologies. This study investigated the dissolution characteristics of CO2 in water-bearing crude oil under different temperature and pressure conditions, and proposed a new solubility prediction model. The results showed that temperature and pressure had significant effects on the solubility of CO2 in water-bearing crude oil, and the newly established prediction model exhibited high accuracy.
Article
Mechanics
Maria K. Papadimitriou, Pavlos S. Stephanou
Summary: In this paper, we propose a model to predict the rheological response of water-in-oil emulsions during crude oil extraction. The emulsions are modeled as deformable droplets using a determinant-preserving contravariant second-rank tensor. By employing the generalized bracket formalism of non-equilibrium thermodynamics, we ensure the thermodynamic admissibility of the derived model. The introduction of an additional scalar structural variable allows the prediction of a yielding point, with the predictions of the new model showing excellent agreement with experimental measurements.
Article
Biotechnology & Applied Microbiology
Abdul Salam Abdul Raheem, Dorra Hentati, Dawoud Bahzad, Raeid M. M. Abed, Wael Ismail
Summary: We enriched bacterial consortia from oilfield samples and found that they have potential for bio-catalytic upgrading of heavy crude oil. Treatment with one bacterial consortium resulted in an increase in saturates fraction, a decrease in aromatics fraction, a reduction in asphaltene content, and an increase in resins. The biotreated oil also showed better recovery of fractions compared to the non-treated oil. The bacterial consortia composition varied with the source and changed over time, with certain bacteria identified as key players in the bioupgrading process.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2022)
Article
Chemistry, Multidisciplinary
Maria E. F. Brollo, Ivanei F. Pinheiro, Gabriel S. Bassani, Guillaume Varet, Daniel Merino-Garcia, Vanessa C. B. Guersoni, Marcelo Knobel, Antonio C. Bannwart, Charlie van der Geest, Diego Muraca
Summary: Flow assurance is crucial for successful crude oil extraction, as it ensures a financially sustainable flow and addresses issues such as paraffin deposition, asphaltene, and methane hydrate. The application of magnetic nanoparticles in the oil industry is a recent research focus, where the use of magnetic nanofluids and the phenomenon of magnetic hyperthermia can significantly decrease viscosity.
Article
Multidisciplinary Sciences
Yukai Zhuang, Bo Gan, Zhongxun Cui, Ruilian Tang, Renbiao Tao, Mingqiang Hou, Gang Jiang, Catalin Popescu, Gaston Garbarino, Youjun Zhang, Qingyang Hu
Summary: Water in the mantle transition zone and the core-mantle boundary plays a crucial role in Earth's internal processes. This study investigates the electrical conductivity and sound velocity of a specific iron mineral and finds that it matches the characteristics of water channels in the mantle. This provides evidence for active water transportation in the mantle.
Article
Chemistry, Physical
Michele De Bastiani, Giovanni Armaroli, Rawan Jalmood, Laura Ferlauto, Xiaole Li, Ran Tao, George T. Harrison, Mathan K. Eswaran, Randi Azmi, Maxime Babics, Anand S. Subbiah, Erkan Aydin, Thomas G. Allen, Craig Combe, Tobias Cramer, Derya Baran, Udo Schwingenschlogl, Gilles Lubineau, Daniela Cavalcoli, Stefaan De Wolf
Summary: This study investigates the root causes of catastrophic delamination at the top contact in state-of-the-art perovskite/silicon tandem solar cells and identifies the interface between the fullerene electron transport layer and the tin oxide buffer layer as the origin of such delamination. The study shows that the perovskite morphology and roughness, as well as the film processing conditions, play significant roles in the microscopic adhesion of the top layers. These findings highlight the need for new interfacial linking strategies to enable mechanically strong perovskite-based solar cells for commercialization.
ACS ENERGY LETTERS
(2022)
Article
Instruments & Instrumentation
Runze Jiang, Chunyuan Lan, Jinxue Du, Renbiao Tao
Summary: In this study, a series of systematic calibration experiments were conducted on the multihole gasket technique using statistical methods. The pressure deviations among different holes in a gasket were constrained to less than 0.2 GPa at average pressures below 10 GPa. The multihole gasket technique could be widely applied to study water-mineral interactions at high-pressure and high-temperature conditions.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Engineering, Manufacturing
Ran Tao, Xiaole Li, Arief Yudhanto, Marco Alfano, Gilles Lubineau
Summary: Ensuring the progressivity of failure is crucial for the safety and maintenance of adhesively-bonded composite joints. This study investigated the integration of ductile structures within the adhesive layer to transition from brittle failure to stable softening behavior.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Chiara Morano, Ran Tao, Ahmed Wagih, Marco Alfano, Gilles Lubineau
Summary: This study focuses on secondary bonded composite/metal joints and explores a toughening approach enabled by a snap-through cracking process, which significantly enhances load bearing capacity and dissipated energy.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Mechanics
Jassem ALYousef, Arief Yudhanto, Ran Tao, Gilles Lubineau
Summary: Repairing damaged composite parts using the scarf technique requires carefully selecting treatment methods for the composite surface. Laser treatment, specifically using a CO2 laser, has shown potential in improving joint strength by altering the surface characteristics. This study investigates the influence of CO2 laser treatment on the surface characteristics and joint strength of carbon fiber-reinforced plastic laminates. The results suggest that a laser fluence of 3.6 J/m(2) is safe and can improve joint strength in certain types of laminates.
COMPOSITE STRUCTURES
(2022)
Article
Materials Science, Composites
Ping Hu, Ran Tao, Xiaole Li, Gilles Lubineau
Summary: The coupling effect between intralaminar and interlaminar damage makes it difficult to measure the delamination properties of carbon fiber reinforced polymer (CFRP) plies. In this study, an edge effect mitigator is used to isolate the coupling effect and evaluate the delamination properties. The experimental results show that the edge effect mitigator confines the delamination crack and allows for a more objective evaluation of the properties.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Mechanics
Xiaole Li, Ran Tao, Yangyang Xin, Gilles Lubineau
Summary: A cassette-like peeling system is developed to overcome the limitations of current peeling standards when evaluating bonding quality of soft-to-rigid assemblies. The system enables self-similar crack propagation and a stationary peeling front, making it compatible with most universal testers and allowing in situ observation.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2022)
Article
Multidisciplinary Sciences
Lijuan Zhang, Lifei Zhang, Ming Tang, Xiao Wang, Renbiao Tao, Cheng Xu, Thomas Bader
Summary: Massive abiotic methane can be produced during prograde HP-UHP metamorphism in cold subduction zone, which may represent one of the largest sources of abiotic CH4 on Earth. Methane (CH4) is a critical but overlooked component in the study of the deep carbon cycle. Here, CH4-rich fluid inclusions in garnet from eclogites in Western Tianshan, China are studied, confirming the abiotic origin of this CH4. The formation and flux of abiotic CH4 in mafic rocks during subduction are poorly understood, but our findings suggest that massive abiotic CH4 was generated during cold subduction at depths of 50-120 km, making it a significant source of CH4.
NATIONAL SCIENCE REVIEW
(2023)
Article
Geochemistry & Geophysics
Chao Wang, Lu'an Ren, Jesse B. B. Walters, Lifei Zhang, Renbiao Tao
Summary: In this study, natural siderite and rhodochrosite were characterized using Raman spectroscopy in an externally heated diamond-anvil cell. The Raman frequency shifts of both minerals were found to be related to pressure and temperature, and the effect of the P-T cross derivative term cannot be neglected. Based on the functional relationship between frequency and pressure/temperature, calibration curves were developed for both minerals. This is significant for studying water-carbonate interaction at high P-T conditions.
AMERICAN MINERALOGIST
(2023)
Article
Geochemistry & Geophysics
Chunyuan Lan, Renbiao Tao, Fang Huang, Runze Jiang, Lifei Zhang
Summary: In this study, the solubility of different carbonates (calcite/aragonite, dolomite, and magnesite) under high-pressure and high-temperature conditions relevant to subduction zones was systematically determined. The dissolution of dolomite was found to be an incongruent process, while magnesite had much lower solubility compared to aragonite and dolomite. Based on the experimental results, the decarbonation fluxes from carbonate dissolution were about three times larger than those from metamorphism in cold or intermediate subducting slabs.
EARTH AND PLANETARY SCIENCE LETTERS
(2023)
Review
Geosciences, Multidisciplinary
Chao Wang, Renbiao Tao, Jesse B. B. Walters, Tianshi Ren, Jingbo Nan, Lifei Zhang
Summary: This review summarizes the results of petrological, thermodynamic, and experimental investigations on the formation pathways of abiotic organic compounds, including simple hydrocarbon molecules such as CH4 and complex hydrocarbon systems. It also emphasizes the changes and role of organics in geological environments.
ACTA GEOLOGICA SINICA-ENGLISH EDITION
(2023)
Article
Geochemistry & Geophysics
Lu'an Ren, Chao Wang, Xiaowei Li, Renbiao Tao
Summary: We calibrated the Raman shift of synthetic c-BN grains as a P-T sensor for diamond-anvil cell experiments under high-pressure and high-temperature conditions. We found a negative correlation between the Raman shift of c-BN and temperature, and a positive correlation with pressure. We also established a Raman shift P-T sensor for c-BN and tested its stability and signal clarity in water-rock interaction experiments.
AMERICAN MINERALOGIST
(2023)
Article
Chemistry, Physical
Ruslan Melentiev, Ran Tao, Lujain Fatta, Amit K. Tevtia, Nikhil Verghese, Gilles Lubineau
Summary: Electroplating on polymers involves chemical and mechanical interactions of the surface to ensure adhesion. However, the relative contributions of these factors have been debated without quantitative evidence. This study separates the contribution of polymer chemistry by using non-interlocking micro-textures with varied surface area. The results show that chemical adhesion only contributes a minor fraction to the overall adhesion strength in electroplating.
SURFACES AND INTERFACES
(2023)
Article
Geology
Lan ChunYuan, Tao RenBiao, Zhang LiFei, Guo Shun
Summary: More than 98% of global carbon is stored in the Earth's mantle and core. Carbon can be released from the Earth's interior to the surface through magmatism, and it can also enter the Earth's interior through subduction of plates. Different decarbonization mechanisms play a significant role in releasing carbon and influencing CO2 concentration in the Earth's surface system, which can impact the habitability of the Earth. This article summarizes five decarbonization mechanisms and reviews the research progress and problems related to carbon release flux in subduction zones, aiming to inspire new research methods for understanding the deep carbon cycle in subduction zones in the future.
ACTA PETROLOGICA SINICA
(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.
