Article
Chemistry, Physical
Ronald Nguele, Kyuro Sasaki
Summary: The study found that asphaltenes have a stronger affinity with silica-based nanofluid film compared to sandstone wetted with base fluid, resulting in a four-fold lower adsorption. The adsorption of asphaltenes decreases with the decrease in polymer concentration. The size of asphaltene molecules' aromatic core affects their diffusion and adsorption, while an increase in the ratio of heteroatom-to-total carbon enhances their affinity with the nanofluid film.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Alcides Simao, Enrique Dominguez-Alvarez, Chengdong Yuan, Muneer A. Suwaid, Mikhail A. Varfolomeev, Jorge Ancheyta, Omar F. Al-mishaal, Sergey Kudryashov, Igor S. Afanasiev, Dmitry A. Antonenko, Oleg Petrashov, Kirill A. Dubrovin
Summary: This article provides a comprehensive review of the application of different metal-based nanoparticles for upgrading heavy oils. The focus is on the catalysts used for in-situ upgrading, using various thermal treatment methods. Different types of catalysts have been identified, but due to their diversity and variations in evaluation conditions, a direct comparison of their performance is not possible. The literature reviewed indicates the need for further research in order to develop more effective catalysts for increasing recovery factor and permanent upgrading of heavy and extra-heavy oil quality.
Article
Chemistry, Physical
Fatemeh Mahmoudi Alemi, Seyed Ali Mousavi Dehghani, Alimorad Rashidi, Negahdar Hosseinpour, Saber Mohammadi
Summary: The study showed that the synthesized MWCNT-Fe2O3 nanocomposite can effectively control the precipitation and aggregation of asphaltene, improving the stability and flow properties of crude oil.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Fatemeh Mahmoudi Alemi, Seyed Ali Mousavi Dehghani, Ali Rashidi, Negahdar Hosseinpour, Saber Mohammadi
Summary: This study synthesized Fe2O3 and functionalized SiO2 nanoparticles to investigate their effects on asphaltene precipitation and aggregation in live oils. The results showed that Fe2O3 nanoparticles better controlled asphaltene precipitation compared to F-SiO2, leading to increased stability and reduced asphaltene structure size. TEM images confirmed these results and indicated an increase in aromatic sheet interlayer spacing.
Article
Chemistry, Multidisciplinary
Saad F. F. Alkafeef, Salem S. S. Al-Marri
Summary: Resin molecules are crucial for the stability of colloidal asphaltene particles in petroleum reservoirs. Changes in thermodynamic parameters can cause asphaltene precipitation, leading to problems such as decreased permeability and severe plugging in oil production facilities. Developing synthetic resins with enhanced chemical potential can increase asphaltene stability, but predicting compatibility is challenging. This study investigates the stability of asphaltene and oil recovery using oil pre-fractionation and solvent deasphalting techniques, and finds that resin concentration and aromatic power solvency can enhance stability and permeability without formation damage.
Article
Engineering, Multidisciplinary
Sajjad Ansari, Hamid Bahmaninia, Mohammad-Reza Mohammadi, Mehdi Ostadhassan, Saeid Norouzi-Apourvari, Mahin Schaffie, Mohammad Ranjbar, Abdolhossein Hemmati-Sarapardeh
Summary: This study investigated the controlling factors on the adsorption of different types of asphaltene on the surface of dolomite and found that the total nitrogen and sulfur content and the aromaticity of the asphaltenes had a significant impact on adsorption. In dynamic experiments, an increase in flow rate led to a decrease in asphaltene adsorption. The findings of this study are important for better management of oil production from dolomitic reservoirs.
ALEXANDRIA ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Jie Yu, Hongping Quan, Zhiyu Huang, Junbang Shi, Shihao Chang, Lilong Zhang, Xuewen Chen, Yuling Hu
Summary: A new polymer sc-CTS-st, containing long-chain saturated aliphatic hydrocarbon, hydroxyl group and benzene ring, was synthesized and found to be able to dissolve in heavy oil and interact with asphaltene, leading to a significant reduction in viscosity and alteration of asphaltene's supramolecular structure.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Yingchao Li, Hua Yin, Yuhao Cai, Haoyu Luo, Caiya Yan, Zhi Dang
Summary: By adjusting the calci-nation temperature, alpha-Fe2O3 modified biochar showed different morphology and crystal facets, affecting the adsorption performance. The chemisorption process was found to be the dominant adsorption mechanism. Fe2O3/BC-350 exhibited superior adsorption capacity for Cu (II) and Pb(II), while Fe2O3/BC-250 showed good adsorption capacity for As(V). DFT calculations revealed that different Fe2O3/BC had different adsorption affinities to various heavy metals.
Article
Energy & Fuels
Chengdong Yuan, Nikolay Rodionov, Seyedsaeed Mehrabi-Kalajahi, Dmitrii A. Emelianov, Almaz L. Zinnatullin, Mikhail A. Varfolomeev, Rustem Zairov, Alexey Stepanov, Asiya R. Mustafina, Ameen Al-Muntaser, Farit G. Vagizov
Summary: In this study, γ-Fe2O3 nanoparticles with a surface free of capping ligands were synthesized successfully, and their catalytic effect on heavy oil combustion was investigated. The results showed that the combustion performance of heavy oil was significantly improved by γ-Fe2O3 nanoparticles. The reaction intervals of low temperature oxidation and high temperature oxidation shifted to lower temperature, and the effective activation energy was reduced during the whole combustion process.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Biotechnology & Applied Microbiology
Arif Nissar Zargar, Ankur Kumar, Anurag Sinha, Manoj Kumar, Ioannis Skiadas, Saroj Mishra, Preeti Srivastava
Summary: A 9-membered microbial consortium was isolated in this study, showing high efficiency in asphaltene biotransformation and upgrading of heavy crude oil. Experimental results from Maya crude oil demonstrated that the use of this microbial consortium can significantly reduce the viscosity of the oil.
Article
Engineering, Environmental
Jianhua Zhang, Hongjiao Pang, Stephen Gray, Shaoheng Ma, Zongli Xie, Li Gao
Summary: The study confirmed that in-situ formed ferric nanoparticles via ozonation can effectively remove PFAS, with particle sizes affected by various factors.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Ivan Moncayo-Riascos, Christian Guerrero-Benavides, Juliana Giraldo, Oscar Ramirez-Jaramillo, Fernando A. Rojas-Ruiz, Jorge A. Orrego-Ruiz, Cristiam Cundar, Wilson A. Canas-Marin, Raul Osorio Gallego
Summary: A machine learning-based classification model and a linear regression model were proposed in this study to predict the risk of asphaltene damage and the asphaltene onset pressure. Through experimental evaluation and comparison, the accuracy and effectiveness of these models were demonstrated. The integrated model contributes to predicting and preventing the decline in oil production caused by asphaltene precipitation.
Review
Chemistry, Applied
Manh Tung Nguyen, Dang Le Tri Nguyen, Changlei Xia, Thanh Binh Nguyen, Mohammadreza Shokouhimehr, Siva Sankar Sana, Andrews Nirmala Grace, Mortaza Aghbashlo, Meisam Tabatabaei, Christian Sonne, Soo Young Kim, Su Shiung Lam, Quyet Van Le
Summary: Traditional light petroleum supply is decreasing, leading to a higher dependence on heavy oil sources. Hydroprocessing is an effective method for heavy oil upgrading, but asphaltenes may interfere with the process efficiency, requiring proper treatment. Research has extensively studied the impact of operating conditions on asphaltenes, aiming to achieve deep conversion during hydroprocessing.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Physical
Jie Yu, Hongping Quan, Shihao Chang, Zhiyu Huang
Summary: The high viscosity of heavy oil poses challenges in its extraction, transportation, and processing. Enhancing the fluidity of heavy oil can improve the economic benefits of its resource development. The aggregation and precipitation of asphaltenes contribute to the high viscosity of heavy oil. The study focuses on the use of a fluorine-containing copolymer to disperse asphaltenes and reduce the viscosity of heavy oil.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Sahar Kafashi, Mohammad Reza Rasaei, Ehsan Eshraghi, Laura Kuhar, Andrej Bona, Aleksandar N. Nikoloski
Summary: In situ recovery involves injecting lixiviant into ore formations to extract target metals, with establishing uniform contact between the fluid and the ore being a major challenge, especially in fractured environments. Titanium dioxide nanoparticles show potential in destabilizing asphaltene deposition, but require stabilization methods for effectiveness.
MINERALS ENGINEERING
(2021)
Correction
Chemistry, Applied
Jia Liu, Juntong Dong, Xiaodan Li, Teng Xu, Zhenguo Li, Jeffrey Dankwa Ampah, Mubasher Ikram, Shihai Zhang, Chao Jin, Zhenlong Geng, Tianyun Sun, Haifeng Liu
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Seba Alareeqi, Daniel Bahamon, Kyriaki Polychronopoulou, Lourdes F. Vega
Summary: This study explores the potential application of single-atom-alloy (SAA) catalysts in bio-oils hydrodeoxygenation refining using density functional theory (DFT) and microkinetic modeling. It establishes the relationships between stability, adsorptive properties, and activity structures for bio-oil derivatives, providing guidance for the synthesis of cost-effective SAA combinations.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Bin Hu, Wen -Ming Zhang, Xue-Wen Guo, Ji Liu, Xiao Yang, Qiang Lu
Summary: This study explored the pyrolysis behaviors and mechanisms of different monosaccharides, including arabinose, galactose, galacturonic acid, and glucuronic acid. The roles of structural differences in these monosaccharides were analyzed, and it was found that glucuronic acid undergoes a special C-C bond breaking reaction during pyrolysis. The findings provide a deep understanding of the pyrolysis chemistry of hemicellulose and the role of different branches.
FUEL PROCESSING TECHNOLOGY
(2024)
Review
Chemistry, Applied
Youwei Zhi, Donghai Xu, Guanyu Jiang, Wanpeng Yang, Zhilin Chen, Peigao Duan, Jie Zhang
Summary: Hydrothermal carbonization (HTC) is an effective method for the harmless disposal of municipal sludge (MS) and offers potential applications for the obtained products. Optimizing reaction conditions, coupling with other waste materials, and combining different processes can improve the performance of HTC. Furthermore, HTC contributes to energy recovery and enhances the quality of life cycle assessment.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Jia Wang, Jianchun Jiang, Dongxian Li, Xianzhi Meng, Arthur J. Ragauskas
Summary: This study presents a scalable process for converting holocellulose and cellulosic wastes into advanced oxygen-containing biofuels with high furan, cyclic ketone, and ethanol content. By combining hydropyrolysis and vapor-phase hydrodeoxygenation using Pd/Al2O3 as a catalyst, the researchers achieved high yields and conversions. The integrated process holds great promise for biomass waste conversion into advanced biofuels.
FUEL PROCESSING TECHNOLOGY
(2024)
Article
Chemistry, Applied
Florian Held, Jannis Reusch, Steffen Salenbauch, Christian Hasse
Summary: The accurate prediction and assessment of soot emissions in internal combustion engines are crucial for the development of sustainable powertrains. This study presents a detailed quadrature-based method of moments (QMOM) soot model coupled with a state-of-the-art flow solver for the simulation of gasoline engines. The model accurately describes the entire cause-and-effect chain of soot formation, growth and oxidation. Experimental validation and engine cycle simulations are used to identify the root cause of observed soot formation hotspots.
FUEL PROCESSING TECHNOLOGY
(2024)