Review
Energy & Fuels
Eliane Barros, Paulo R. Filgueiras, Valdemar Lacerda Jr, Ryan P. Rodgers, Wanderson Romao
Summary: This article introduces the definition, formation mechanisms, and classification of naphthenic acids (NAs), as well as the challenges and phenomena related to the petrochemical industry. A bibliometric review shows an increase in the number of publications about NAs in recent years. The article also presents the primary extraction and characterization techniques of NAs, with Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) being an excellent characterization method.
Article
Energy & Fuels
Sharath Chandra Mahavadi, Mohammed Al Hamad, Shouxiang Mark Ma, Wael Abdallah
Summary: Interfacial tension (IFT) between crude oil and water is a critical property that affects multiphase flow in porous media. Measuring IFT in the laboratory is challenging, and tools for downhole measurement are currently unavailable. Existing reservoir simulators rely on empirical models that do not accurately account for crude oil chemistry. This study developed a potential model for downhole IFT measurement using crude oil samples from different fields. The model can improve saturation height function modeling, aid in field development planning and production strategies, and serve as a monitoring tool to prevent technical issues.
Article
Energy & Fuels
Mohammad Fattahi Mehraban, Seyed Amir Farzaneh, Mehran Sohrabi
Summary: This study investigates the effect of salinity on oil/water interfacial interactions and identifies that low salinity water injection promotes the formation of water microdispersion at the oil/water interface.
Article
Energy & Fuels
Amit Patil, Kamilla Arnesen, Anja Holte, Umer Farooq, Anders Brunsvik, Trond Storseth, Stein Tore Johansen
Summary: Crude oils exhibit complex dispersion and emulsion flow behavior with water due to their rich chemical composition. The interfacial properties and surface chemistry of oil and water heavily influence the stability and separation, a new technique involving stirred tank cell with interfacial tension and analytical chemistry measurement is proposed for better understanding. Droplet stability parameters and surface-active components in crude oils play a significant role in emulsion droplet stability.
Article
Energy & Fuels
Madjid Meriem-Benziane, Benyebka Bou-Said, Bassam Gamal Nasser Muthanna, Ismail Boudissa
Summary: Corrosion damage at the elbows in the piping system during crude oil refining process is influenced by sodium chloride, calcium chloride, naphthenic acids, and sulfur compounds. Computational fluid dynamics helps predict corrosion behavior and offers solutions to improve operational safety.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Energy & Fuels
Soroush Ahmadi, Azizollah Khormali, Fridel Meerovich Khoutoriansky
Summary: This study investigates the effect of oil to kerosene ratio, space velocity, temperature, demulsifier dosage, and wash water ratio on the performance of demulsification of water-in-heavy crude oil emulsions. The results show that the oil to kerosene ratio has the greatest impact on water removal efficiency (WRE) and salt removal efficiency (SRE).
Article
Construction & Building Technology
Waqas Rafiq, Madzlan Napiah, Noor Zainab Habib, Muslich Hartadi Sutanto, Wesam Salah Alaloul, Muhammad Imran Khan, Muhammad Ali Musarat, Abdul Muhaimin Memon
Summary: This study examines the influence of using crude palm oil in hot mix asphalt with recycled asphalt pavement materials. Experimental results show that stability and indirect tensile strength increase with up to 80% recycled asphalt pavement material, but 100% RAP with crude palm oil reduces these strength parameters. Microstructural analysis reveals that the incorporation of CPO changes the structure of aged and virgin binder, forming new and unique phases. The statistical models are significant and well-fitted, validated through experiments with a low error rate, indicating potential for CPO as a bio binder material.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Energy & Fuels
Juan S. Ramirez-Pradilla, Cristian Blanco-Tirado, Marie Hubert-Roux, Pierre Giusti, Carlos Afonso, Marianny Y. Combariza
Summary: In this study, the performance of APPI, LDI, and ET-MALDI for analyzing PP-enriched extracts was compared. ET-MALDI produced a less complex spectrum with fewer ions, leading to improved signal resolution and mass accuracy in FT-ICR-MS.
Article
Chemistry, Multidisciplinary
Jiangbo Wen, Haijun Luo, Gang Ai
Summary: The study found that the emulsified water fraction is related to the physicochemical properties of crude oil and can be conveniently predicted with a prediction model for different crude oils and shearing conditions. The model prediction has a mean relative deviation of 4.5%.
Article
Chemistry, Multidisciplinary
Nurul Widiastuti, Romaya Sitha Silitonga, Hadi Nugraha Cipta Dharma, Juhana Jaafar, Alvin Rahmad Widyanto, Mochammad Purwanto
Summary: Crude palm oil is an important commodity in the economic and social development of producer nations, but the presence of free fatty acids decreases its quality. Coating the surface of PVDF hollow fiber membrane with chitosan and glutaraldehyde enhances the hydrophilicity, porosity, and roughness of the membrane, resulting in a maximum FFA rejection rate of 14.99% compared to the uncoated membrane.
Article
Energy & Fuels
Yongjun You, Chong Liu, Qi Xu, Xuefei Hu, Simin Zhang, Changhan Wang, Huanliang Guo, Chao Tang
Summary: This study optimized the main parameters of ultrasonic-assisted oil recovery from oily sludge using a response surface method. The study identified the best conditions for oil recovery and analyzed the characteristics of the recovered oil and residue.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Christian Nwosu, Olumide Ayodele, Hussameldin Ibrahim
Summary: In this study, the central composite design of the response surface methodology (RSM) and artificial neural network (ANN) were used to optimize hydrogen gas production via autothermal reforming of crude glycerol. The results showed that ANN provided a better regression with excellent statistical values, indicating a superior model fit compared to RSM.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Engineering, Environmental
Deborah Cristina Crominski da Silva Medeiros, Pamela Chelme-Ayala, Mohamed Gamal El-Din
Summary: Large volumes of oil sands process water containing naphthenic acids (NAs) and other contaminants are effectively treated using activated biochar from sludge, reducing environmental impact and promoting circular economy. The activated biochar exhibited higher adsorption capacity for NAs due to increased surface area, presence of mesopores, and oxygen-containing surface groups. Adsorption mechanisms include pore-filling, hydrogen bonding, and 7C-7C interactions. Thermal regeneration of spent activated biochar further increased its adsorption capacity. OSPW treated with activated biochar also showed reduced levels of metals, organic matter, acute toxicity, and bioavailability of organics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Guillaume Lemahieu, Johann Le Maitre, Charlotte Mase, Julien Maillard, Jesus F. Ontiveros, Leticia Ligiero, Matthieu Loriau, Pierre Giusti, Carlos Afonso, Jean-Marie Aubry, Valerie Molinier
Summary: A novel method for extracting crude oil surface-active species using three-phase microemulsions has been described, demonstrating effectiveness compared to the established wet-silica method. Analytical data suggests a correlation between the interfacial materials and the interfacial activity, stability, and equivalent alkane carbon numbers of the crude oil.
Article
Energy & Fuels
Qian-Hui Zhao, Shuai Ma, Jian-Xun Wu, Wei-Feng Chang, Sheng-Fei Zhang, Xin-Ge Sun, Bing Zhou, Zeng-Min Lun, Keng H. Chung, Quan Shi
Summary: Most heavy crude oils undergo degradation and produce naphthenic acids, which are polar compounds that affect oil viscosity. The relationship between the molecular composition of naphthenic acids and oil viscosity is not well understood. This study analyzed a clean heavy oil with low heteroatom content but high naphthenic acid content. It was found that naphthenic acids with 2-3 rings and 15-35 carbon atoms are the dominant components, and the viscosity of the distillation fraction increases exponentially with boiling point.
Article
Energy & Fuels
Norshahidatul Akmar Mohd Shohaimi, Wan Azelee Wan Abu Bakar, Jafariah Jaafar
PETROLEUM SCIENCE AND TECHNOLOGY
(2017)
Article
Chemistry, Multidisciplinary
Norshahidatul Akmar Mohd Shohaimi, Wan Azelee Wan Abu Bakar, Jafariah Jaafar
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2014)
Article
Energy & Fuels
N. A. M. Shohaimi, W. A. W. A. Bakar, Jafariah Jaafar
PETROLEUM SCIENCE AND TECHNOLOGY
(2014)
Article
Engineering, Chemical
A. H. Zamani, Norshahidatul Akmar Mohd Shohaimi, Salmiah Jamal Mat Rosid, Nor Hakimin Abdullah, Nurasmat Mohd Shukri
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2019)
Article
Energy & Fuels
Aunie Afifah Abdul Mutalib, Mohd Lokman Ibrahim, Juan Matmin, Muhd Firdaus Kassim, Mohd Sufri Mastuli, Yun Hin Taufiq-Yap, Norshahidatul Akmar Mohd Shohaimi, Aminul Islam, Yie Hua Tan, Noor Haida Mohd Kaus
BIOENERGY RESEARCH
(2020)
Article
Energy & Fuels
Norshahidatul Akmar Mohd Shohaimi, Nur Shahirah Mohd Halim, Ahmad Zamani Ab Halim, Nurasmat Mohd Shukri, Nor Hakimin Abdullah
PETROLEUM SCIENCE AND TECHNOLOGY
(2020)
Article
Biochemistry & Molecular Biology
Nor Hakimin Abdullah, Mazlan Mohamed, Norshahidatul Akmar Mohd Shohaimi, Azwan Mat Lazim, Ahmad Zamani Abdul Halim, Nurasmat Mohd Shukri, Mohammad Khairul Azhar Abdul Razab
Summary: Activated carbon was synthesized from local oil palm trunk biomass for the removal of synthetic dye from aqueous media. Optimization using response surface methodology achieved a high dye removal efficiency of 97.9% under specific conditions.
Article
Chemistry, Physical
Muhammad Amirrul Hakim Lokman NolHakim, Norshahidatul Akmar Mohd Shohaimi, Wan Nur Aini Wan Mokhtar, Mohd Lokman Ibrahim, Rose Fadzilah Abdullah
Summary: Beads and powder potassium hydroxide (KOH) and potassium carbonate (K2CO3) supported on alumina oxide (Al2O3) were successfully prepared via incipient wetness impregnation technique. Catalytic performance was evaluated via transesterification of waste cooking oil (WCO) to biodiesel, with optimal conditions of 1:12 oil-to-methanol molar ratio and 5 wt.% catalyst at 65 degrees C. The mesoporous size of the catalysts led to 86.8% and 77.3% yield of fatty acids methyl ester (FAME) at 2 hours' reaction time. Utilization of perforated hydrophilic materials (PHM) increased reusability of the catalyst up to 7 cycles.
