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)
Review
Chemistry, Analytical
Muhammad Shahid Nazir, Sadaf Ahmad, Zaman Tahir, Sadaf ul Hassan, Zulfiqar Ali, Majid Niaz Akhtar, Kashuf Azam, Mohd. Azmuddin Abdullah
Summary: This review paper highlights recent advancements in the desulfurization of diesel oil, aiming to explore less energy-intensive and more economical processes. The main techniques for desulfurization of diesel oil include hydrodesulfurzation, oxidative desulfurization, biodesulfurization, ionic liquid desulfurization, and adsorption desulfurization. Adsorptive desulfurization technique is considered greener, less energy intensive, and more economical compared to other desulfurization techniques.
CURRENT ANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Jasim I. Humadi, Saba A. Gheni, Safaa M. R. Ahmed, Ghassan H. Abdullah, Anh N. Phan, Adam P. Harvey
Summary: This study developed a highly efficient, rapid oxidative desulfurization (ODS) process for continuous removal of sulfur contaminants in diesel fuels. By optimizing the operating conditions, up to 94% of DBT could be removed in a short amount of time without the need for further extraction.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2021)
Article
Chemistry, Physical
Shangshang Li, Hui Chen, Ting Luo, Fei Wang, Guangchun Xiao, Zhaoqiang Chen, Mingdong Yi, Changchao Sheng, Chonghai Xu
Summary: This study investigated the tribological properties of IL L-L108 as an additive to SAE 10W-40 and PEG400 for steel-steel contacts. The results showed that the lubricating performance was improved when L-L108 was used as an additive, with XPS analysis indicating a tribochemical reaction between the mixture and metal substrate. This reaction formed a chemical reaction film on the steel surface, contributing to the excellent tribological performance observed.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Multidisciplinary
Qasim Y. Rahawi, Nadjet Berrabia, Boudjema Hamada, Ahmed M. Daabo
Summary: This research paper focuses on the physicochemical optimization parameters for the Microwave Assisted Extractive/Oxidative Desulfurization (MAEOD) of Algerian diesel. The study used vanadyl acetyl acetonate as catalyst, hydrogen peroxide as oxidant, and an acid Bronsted Ionic Liquid (IL) as an in situ synthesized extractor. The researchers examined the effects of various parameters and developed a regression model to simulate optimal conditions. The highest yield was achieved with a reaction time of 70 s, a catalyst/oil ratio of 0.4%, and an IL/oil volume ratio of 11%, with a correlation of 99.21.
JOURNAL OF ENGINEERING RESEARCH
(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
Polymer Science
Zeping Wang, Binjie Hu, Haibin Yu, George Zheng Chen
Summary: In this study, novel composites of poly(methyl methacrylate) and poly(butyl acrylate) (PMMA-co-PBA) latex with 1-octyl-3 methylimidazolium hexafluorophosphate (C(8)mimPF(6)), cellulose nanocrystals (CNCs), and C(8)mimPF(6)-CNCs were successfully synthesized through mini emulsion polymerization. These composites were coated on mild steel panels and tested for their anti-corrosion performance, with the C(8)mimPF(6)-CNCs sample showing the highest resistance, corrosion inhibition efficiency, and lowest diffusion coefficient and corrosion rate. The proposed synergistic mechanism suggested that CNCs enhance the coating barrier effect while C(8)mimPF(6) inhibits corrosion when released.
Article
Energy & Fuels
Filipa Lima, Luis C. Branco, Armando J. D. Silvestre, Isabel M. Marrucho
Summary: This review article presents the use of deep eutectic solvents (DES) in removing sulfur pollutants from transportation fuels, highlighting the urgent need to reduce the impact of fossil fuels impurities on outdoor air pollution. A comparative evaluation with Ionic Liquids (ILs) shows that DES has advantages in extracting sulfur contaminants, but the efficiency gap between simulated matrices and real fuels is still a challenge to be addressed.
Article
Engineering, Chemical
Barham Sharif Ahmed, Luqman Omar Hamasalih, Kosar Hikmat Hama Aziz, Khalid M. Omer, Iqrash Shafiq
Summary: An effective oxidative desulfurization system was developed using three dicarboxylic acids to activate hydrogen peroxide, successfully reducing the sulfur content in diesel samples.
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
Chemistry, Physical
Yu-Zhu Wang, Zhuang-Zhuang Li, Zhong-Wen Liu, Xian-Ying Shi
Summary: Heterogenous carboxyl-functionalized bilayer ionic liquids/polyoxometalate catalysts were synthesized and characterized. The catalyst showed good amphiphilicity and achieved 100% sulfur removal for four model fuels without the need for extractant. The polyoxometalate and carrier had significant effects on the catalytic activities, with Keggin-type phosphotungstate and 50 nm silica being superior for desulfurization. The catalyst also demonstrated good recyclability in scale-up experiments.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Chemistry, Applied
Dinis F. Silva, Rui G. Faria, Isabel Santos-Vieira, Luis Cunha-Silva, Carlos M. Granadeiro, Salete S. Balula
Summary: The high costs of commercially available desulfurization technologies in the refinery industry call for the development of novel, efficient, and sustainable alternative processes. Nitrogen compounds also negatively affect the process efficiency. Thus, effective alternative methods capable of simultaneously removing sulfur and nitrogen from fuels under economic and sustainable procedures are desired in the petroleum industry. This study presents a sustainable catalytic process that combines oxidation and liquid-liquid extraction to efficiently remove sulfur and nitrogen from fuels. The catalyst used was a MIL-100(Fe)-based composite containing phosphomolybdic acid (PMo12) as the active center, which achieved complete desulfurization of a model fuel containing refractory sulfur and nitrogen compounds in just 30 minutes.
Article
Chemistry, Multidisciplinary
Lifang Chen, Jin An Wang, Natali de la Fuente, Sinong Zhou, Peng Jiang, Yueqin Song, Xiaolong Zhou
Summary: This study focuses on the roles of structural defects, surface acidity, and catalytic properties of phosphotungstic acid grafted on Zr-doped MCM-41 catalysts in oxidative desulfurization, demonstrating the importance of these factors in improving catalytic activity for ultralow-sulfur fuel production.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Biochemistry & Molecular Biology
Wenbo Li, Yilin Wang, Dongchen Li, Jiachi Jiang, Kunlan Li, Kaili Zhang, Qingda An, Shangru Zhai, Ligang Wei
Summary: The oxidative depolymerization of alkali lignin in the [C(2)C(1)im]OAc system under mild conditions was successful, with the addition of water further improving reaction efficiency. The system allowed for the breakdown of specific inter-unit linkages of lignin, resulting in residual lignin with low molecular weight and narrow polydispersity index. The [C(2)C(1)im]OAc-based system proved to be a simple and efficient catalytic system for lignin oxidative depolymerization.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Polymer Science
Saqar Rahmani, Hamid Reza Mortaheb, Mohammad Reza Omidkhah, Azam Khodadadi Dizaji
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2019)
Article
Engineering, Civil
Sara Pedram, Hamid Reza Mortaheb, Faranzaneh Arefi-Khonsa
JOURNAL OF WATER SUPPLY RESEARCH AND TECHNOLOGY-AQUA
(2019)
Article
Engineering, Chemical
Pouriya H. Niknam, Daniele Fiaschi, Hamid Reza Mortaheb, Babak Mokhtarani
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
(2019)
Article
Chemistry, Physical
Elham Jafarigol, Mahsa Baghban Salehi, Hamid Reza Mortaheb
Summary: Acrylamide-based hydrogel samples were prepared through free radical polymerization method with different combinations of carboxy methyl cellulose, acrylic acid, and N,N,N ',N '-tetra-methylethylene-diamine. The obtained viscoelastic hydrogel poly(AM-co-AA)/TEMED/CMC showed high ESR, heat resistance, and structural strength, making it a promising candidate for various applications.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2021)
Article
Environmental Sciences
Y. Majooni, H. R. Mortaheb, A. Khodadadi Dizaji
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2020)
Article
Energy & Fuels
Ali Asghar Nozaeim, Ahmad Tavasoli, Hamid Reza Mortaheb, Morteza Mafi
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2020)
Article
Engineering, Chemical
Elham Jafarigol, Mahsa Baghban Salehi, Hamid Reza Mortaheb
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2020)
Article
Polymer Science
Mohammad Ali Mousavi, Hamid Reza Mortaheb, Mahsa Baghban Salehi
Summary: Hydrophobic polyether sulfone membranes were prepared using the sol-gel method and modified with Trimethylsilyl chloride (TMSCl) and Methyltrimethoxysilane (MTMS) solutions for desalination in air gap membrane distillation setup. The membrane performance was found to be influenced most significantly by feed temperature, with a permeation flux of 4.47 Kg m(-2) h(-1) and a salt rejection of 99.37% achieved under optimal conditions.
POLYMER-PLASTICS TECHNOLOGY AND MATERIALS
(2021)
Article
Engineering, Chemical
Erfaneh Faghihi, Babak Mokhtarani, Hamid Reza Mortaheb, Kourosh Tabar Heydar, Mojtaba Mirzaei, Ali Sharifi
CHEMICAL ENGINEERING & TECHNOLOGY
(2020)
Article
Environmental Sciences
Homeira Nasiri, Farshad Yazdani, Jalal Zeinali, Hamid Reza Mortaheb
Summary: The study demonstrated that the synthesized new magnetic nanocomposites had great potential for lead ion removal, with a maximum adsorption capacity of 361.53 mg/g. The adsorption kinetics fit well with the pseudo-second order kinetic model, and the reusability test showed good adsorption efficiency for at least three consecutive cycles.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Chemistry, Applied
Marzieh Bakhshi, Hamid Reza Mortaheb, Mohammad Hassan Amini
Summary: Demands for phosphoric acid are increasing rapidly in various industries, emphasizing the importance of optimizing its production and purification methods. Purification of phosphoric acid produced by a wet process is a major concern due to the presence of many organic and inorganic impurities. The use of foam fractionation for removing trace metal impurities from phosphoric acid has shown promising results, with a significant increase in total metal removal efficiency achieved in a two-stage experimental run.
JOURNAL OF SURFACTANTS AND DETERGENTS
(2021)
Article
Chemistry, Multidisciplinary
H. R. Mortaheb, M. Baghban Salehi, M. Rajabzadeh
Summary: Hybrid membranes of PVDF and electrochemically-fabricated graphene were prepared and studied for desalination. Adding graphene increased membrane hydrophobicity and permeation flux, but excessive graphene content decreased flux. Key parameters for optimal membrane preparation were determined as ethanol concentration, graphene content, and temperature.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Environmental Sciences
Ali Asghar Nozaeim, Hamid Reza Mortaheb, Ahmad Tavasoli, Morteza Mafi
Summary: The rates of CO2 absorption into fresh and regenerated solutions of DEEA, MDEA, and their mixture with sulfolane were investigated. Sulfolane acts as an effective absorption activator in the hybrid DEEA solutions, but has a negative effect on the absorption rate in MDEA solutions. The absorption rates of regenerated DEEA solutions are lower than fresh solutions, while the values for hybrid DEEA solutions are higher. The CO2 absorption regime in the DEEA solutions was determined as a fast second-order reaction based on Hatta number and enhancement factor.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Energy & Fuels
Mohammad Sadegh Samie, Hamid Reza Mortaheb
Summary: A new set of correlations has been developed for easy prediction of SARA values of VRs, combining multilinear and nonlinear regression, resulting in high agreement between predicted and measured values.
Article
Engineering, Environmental
Abolfazal Jafari, Hamid Reza Mortaheb, Fausto Gallucci
Summary: Functionalized and reduced graphene oxide nanosheets (rGOODA) were successfully incorporated into polydimethylsiloxane (PDMS) membranes for efficient removal of toluene from water by pervaporation. The properties of the functionalized nanosheets were characterized and the performance of the mixed matrix membranes (MMMs) was evaluated. The results showed that the addition of rGOODA significantly improved the separation factor and enrichment factor compared to pure graphene oxide nanosheets due to their better solubility parameter, hydrophobicity, and compatibility with the polymeric matrix.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
