Article
Engineering, Chemical
Lianwen He, Jing He, Peng Cui, Yuting Feng, Mingqing Hua, Jinrui Zhang, Peiwen Wu, Wenshuai Zhu, Huaming Li, Zhichang Liu, Chunming Xu
Summary: By introducing porous boron nitride into ionic liquids, the efficiency of sulfur extraction from fuel oil can be improved. Using m-BN-PIL as an extractant under optimized conditions achieves desulfurization performances of 59.2% and 61.8% for dibenzothiophene and 4-methyldibenzothiophene, respectively. After four stepwise extractions, the extraction efficiency over dibenzothiophene reaches 98.2%, achieving deep desulfurization of fuel oil.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Energy & Fuels
Sofia Laraib, Sana Zulfiqar, Noshaba Tabassum, Sohaila Andleeb, Saima Nasreen
Summary: Humanity is threatened by the systematic pollution of the environment, accompanied by dwindling resources due to rapid population growth. To address this issue, researchers synthesized graphene oxide-GO and magnetic graphene oxide-MGO and fabricated them with cellulose acetate for desulfurization of fuel. These materials demonstrated effective desulfurization and adsorption capabilities, offering a promising solution to reduce pollution.
Article
Biotechnology & Applied Microbiology
Pingping Zhao, Xiaoxin Wang, Qiang Wang, Lianzheng Zhang, Dongmei Xu, Jun Gao
Summary: A series of ionic liquid (IL) extractants were developed for the removal of sulfides from fuels. The ILs, synthesized with functionalized 1,8-diazabicyclo[5.4.0]undecano-7-ene (DBU) cations and large volume difluoromethane sulfonimide (NTf2) anion, showed good performance in removing benzothiophene (BT), thiophene (TH), and dibenzothiophene (DBT) in model oil.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Engineering, Chemical
Guojia Yu, Dongyu Jin, Xinyu Li, Fan Zhang, Shichao Tian, Yixin Qu, Zhiyong Zhou, Zhongqi Ren
Summary: A nitrogen-containing ionic liquid was used to effectively remove sulfur-containing contaminants from model fuel oil, demonstrating its selectivity and stability.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2022)
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, Environmental
Nan Jin, Jun Yue, Yuchao Zhao, Hongying Lu, Chengxiu Wang
Summary: The study focused on intensifying extractive desulfurization using microreactor, which succeeded in extracting aromatic heterocyclic sulfur compounds like dibenzothiophene from model diesel. The process achieved efficient desulfurization in a shorter time, with the extraction modeled based on a two-film model and investigation into the mechanisms for improved performance at higher temperatures or larger IL to MD flow ratios.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Zahra Moheb-Aleaba, Mohammad Reza Khosravi-Nikou
Summary: Extractive desulfurization using ionic liquids has attracted attention due to its simplicity and easy operating conditions. However, the selection of suitable cations and anions remains a challenge. This study developed a methodology to screen cation and anion molecules for maximum sulfur removal efficiency. Through genetic algorithm and principal component analysis, it was determined that certain imidazolium and pyridinium cations combined with specific anions are promising for extractive desulfurization. The selected ionic liquid, [HMPY][N(CN)2], was synthesized and evaluated, showing potential as a solvent for removing DBT or BT from n-heptane.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Zahra Moheb-Aleaba, Mohammad Reza Khosravi-Nikou
Summary: This study developed a new methodology for screening suitable cation and anion molecules to achieve maximum sulfur removal efficiency. The best structural descriptors were selected using Genetic Algorithm, and then the most proper cations and anions were chosen using Principal Component Analysis (PCA). It was concluded that ionic liquids with imidazolium and pyridinium cations with hexyl chain, combined with [N(CN)2] and [Ac] anions, are promising extraction solvents for desulfurization.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Jingwen Li, Yanwen Guo, Junjun Tan, Bing Hu
Summary: A novel family of imidazole-based polyoxometalate dicationic ionic liquids catalysts were synthesized for efficient desulfurization of fuel oil, showing excellent desulfurization efficiency and recyclability. The possible mechanism of the ECODS process was proposed based on the catalytic performance under different conditions.
Article
Energy & Fuels
Zenglin Jiang, Xiaohong Wang, Hao Deng, Jia Zhao, Yugang Li
Summary: This study selected 16 environmentally friendly and easily degradable ionic liquids for fuel desulfurization research. Through molecular mechanism studies and experiments, it was found that [C2COOCH3ImC6H13][NTF2] ILs exhibited high desulfurization efficiency.
JOURNAL OF THE ENERGY INSTITUTE
(2024)
Article
Chemistry, Applied
Jinrui Zhang, Jie Yin, Wendi Fu, Hongshun Ran, Wei Jiang, Hongping Li, Wenshuai Zhu, Huaming Li, Ming Zhang
Summary: Silica-based porous ionic liquids (OS-PIL) functionalized with quaternary ammonium salt were successfully synthesized to remove dibenzo-thiophene (DBT) in model fuel. The OS-PIL exhibited high extraction activity with a Nernst partition coefficient of 4.22. The synergistic effect between porous materials and ionic liquids, along with the multiple sites in the quaternary ammonium salt, greatly contributed to the high extractive desulfurization efficiency.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Energy & Fuels
Jimin Wu, Xumin Wu, Pingping Zhao, Zenghui Wang, Lianzheng Zhang, Dongmei Xu, Jun Gao
Summary: The ZIF-8-PILs demonstrated high removal efficiencies for thiophene and benzothiophene under optimal conditions and can be easily recovered and reused due to their stable liquid porous structure. The synergistic effects of electrostatic interactions, hydrogen bonding, and pi-complexation interactions among ILs, ZIF-8, and sulfur compounds contributed to the high removal efficiency. The results suggest that PILs are a new and promising extractant for fuel extraction desulfurization process.
Article
Energy & Fuels
Jakob Albert, Michael Huber, Jens Tochtermann, Sebastian Eller, Wolfgang Korth, Andreas Jess
Summary: Extractive catalytic oxidative deoxygenation (ECODO) is used to remove organic oxygen from fuels, making renewable fuels more stable and efficient. Aqueous heteropolyacid catalyst solution is used to completely oxidize compounds like cresol and furan under oxygen. The oxidation products are separated as CO2 or CO in the gas phase, or as water-soluble organic acids in the three-phase process. Tuning the reaction conditions and optimizing the catalyst loading drastically increase the conversion of stable dibenzofuran (DBF).
Review
Engineering, Environmental
Fen Liu, Jiang Yu, Abdul Basit Qazi, Li Zhang, Xueke Liu
Summary: Ionic liquids (ILs) have attracted attention as novel functional desulfurization materials, with metal-based ILs (MILs) showing unique advantages in hydrophobicity, oxidation performance, and acidity for improved oxidative desulfurization. MILs possess absorption and oxidation centers for intramolecular adsorption and oxidation, improving the ODS process efficiency.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Chemical
Sarrthesvaarni Rajasuriyan, Hayyiratul Fatimah Mohd Zaid, Mohd Faridzuan Majid, Raihan Mahirah Ramli, Khairulazhar Jumbri, Jun Wei Lim, Mardawani Mohamad, Pau Loke Show, Brian Yuliarto
Summary: The biggest challenge faced in oil refineries is the removal of sulfur compounds in fuel oil. Researchers have studied a new desulfurization process that combines extractive desulfurization and oxidative desulfurization using a combination of ionic liquids and a photocatalyst to achieve efficient desulfurization.
