Article
Chemistry, Applied
Lei Wang, Daxiang Xie, Yingying Ma, Meng Sun, Nchare Mominou, Weijie Jiang, Chen Shufeng, Chunyu Jing
Summary: This study prepared a photocatalyst with high desulfurization and denitrogenation activities by Er, W, and N co-doping modification of TiO2. Experimental results showed that the desulfurization and denitrogenation ratios were both 100% under suitable conditions. The co-doping of Er, W, and N extended the photo-absorption range and improved the hole-electron separation of TiO2.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Thermodynamics
Mahmut Uyar, Huseyin Aydin
Summary: In this study, a diesel-like fuel was produced from crude oil sludge using catalytic pyrolysis. The fuel went through two stages of desulfurization, resulting in a significant reduction in sulfur content. The obtained fuels were found to be suitable for use in diesel engines without requiring any engine modifications.
Article
Chemistry, Multidisciplinary
Samira Mandizadeh, Omid Amiri, Masoud Salavati-Niasari
Summary: NiFe2O4 nanosheets were successfully synthesized using ultrasonic and combustion methods with triiodothyronine as a biotemplate. The nanosheets showed high efficiency in removing sulfur compounds from diesel fuels and improving diesel engine performance under optimized conditions. The recyclable NiFe2O4 nano additive also demonstrated the ability to reduce NOx, CO, HC, and smoke emissions in diesel engines.
Article
Engineering, Chemical
Yadollah Tavan, Fatola Farhadi, Mohammad Shahrokhi
Summary: The study utilized electrochemical oxidative desulfurization technique to reduce the sulfur content of crude diesel, with kinetic study showing a second order reaction rate. Dimethyl sulfoxide was selected as the solvent for desulfurization extraction, with research indicating that low solvent flow rate can improve extraction efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Jie Zhao, Bingquan Wang, Rui Wang, Ivan V. Kozhevnikov, Korchak Vladimir
Summary: Amphiphilic hybrid catalysts were prepared by modifying [SMo12O40](2-) with tetrabutylammonium bromide (TBAB), 1-butyl-3-methylimidazole bromide (BMIMBr), and octadecyl trimethyl ammonium bromide (ODAB). The catalysts were characterized by various techniques and showed favorable activity for removing sulfur compounds at room temperature in model oil and actual diesel. Different catalysts exhibited varying levels of removal effect, with [TBA](2)SMo12O40 catalyst showing the best performance.
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
Engineering, Chemical
Lei Wang, Ning Zuo, Meng Sun, Yingying Ma, Nchare Mominou, Weijie Jiang, Shuzhen Li, Chunyu Jing
Summary: By doping N, CQDs, Ir, and Pr in TiO2, the prepared Ir/Pr-N-CQDs-TiO2 exhibited excellent desulfurization and denitrogenation activity, with much higher turnover frequencies compared to other catalysts, and desulfurization and denitrogenation ratios reaching very high levels.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Energy & Fuels
Xinyu Li, Junjun Shi, Jiangang Wang, Lei Xi, Rui Sun, Fan Zhang, Xi Wu, Zhiyong Zhou, Zhongqi Ren
Summary: This work reports a novel cerium-vanadium bimetallic catalyst supported by boron nitride nanosheets (CeVO4/BNNS) for the efficient removal of sulfur-containing compounds from diesel fuel through catalyzing molecular oxygen. The CeVO4/BNNS catalyst was prepared successfully and showed good stability after six times recycle. The efficient removal of 4,6-DMDBT, DBT, and BT was achieved due to the synergistic effect of CeVO4 bimetallic oxide and the strong affinity of BNNS for sulfur-containing compounds.
Article
Acoustics
Satadru Chakrabarty, Prachi Upadhyay, Sankar Chakma
Summary: The study explores the production of ultra-low sulfur liquid fuels through experimental and theoretical investigation, estimating various reactive species formed during the reaction. The oxalate-based technique is efficient in achieving high DBT oxidation levels within a short reaction time. The sonochemical effect accelerates reaction kinetics by generating free radicals and other reactive species during transient cavitation.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Energy & Fuels
Guojia Yu, Xiaojia Wu, Lu Wei, Zhiyong Zhou, Wei Liu, Fan Zhang, Yixin Qu, Zhongqi Ren
Summary: Ionic liquids (ILs) are efficient green solvents for thiophene sulfides removal. In this study, several acidic ILs were synthesized and [NFM][TFA] showed excellent desulfurization efficiency. Through a proposed mechanism, [NFM][TFA] reacted with H2O2 to oxidize DBT in IL phase to corresponding sulfones.
Article
Green & Sustainable Science & Technology
Asmaa S. Morshedy, Sahar M. Taw, Karam M. Hashem, Dina M. Abd El-Aty, Ahmed A. Galhoum, Mohsen S. Mostafa, Eric Guibal
Summary: Photocatalysis is a promising process for developing greener fuels, with liquid Cd-based diacetate showing higher sulfur removal efficiency and better quality properties for diesel photo-desulfurization under visible light and sunlight irradiation compared to CdOx nanoparticles. This offers potential for economic and clean fuel production, associated with pollution control.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Biotechnology & Applied Microbiology
Asmaa S. Morshedy, Hager R. Ali, Amr A. Nada, Abdelrahman M. Rabie, Heba H. El-Maghrabi
Summary: The study utilized a well-prepared imprinted nanocomposite polymer as a highly photo-active material for oxidative desulfurization process, achieving a high efficiency of dibenzothiophene degradation. By adjusting experimental parameters such as radiation source, catalyst dosage, reaction time, and addition of oxidizing agents, sulfur compounds can be rapidly removed at room temperature. The material exhibited not only efficient desulfurization under optimal conditions, but also excellent recyclability for multiple uses.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Ahmad S. Darwish, Farah Abu Hatab, Tarek Lemaoui, Omar A. Z. Ibrahim, Ghaiath Almustafa, Botagoz Zhuman, Samah E. E. Warrag, Mohamed K. Hadj-Kali, Yacine Benguerba, Inas M. Alnashef
Summary: Eutectic solvents have been studied for fuel purification, with this work focusing on the extraction of multiple aromatics from n-decane using a salt-acid-based ES. Experimental and theoretical studies showed different extraction mechanisms for different impurities, with full recovery achieved for pyrrole and quinoline after 2 stages of extraction and lower efficiencies for thiophene and toluene.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Lixian Xu, Yaping Luo, Hui Liu, Jie Yin, Hongping Li, Wei Jiang, Wenshuai Zhu, Huaming Li, Hongbing Ji
Summary: A novel amide-based deep eutectic solvent (DES) was synthesized and applied for desulfurization of fuels, showing high efficiency. Experimental and theoretical studies revealed the mechanism of desulfurization by this DES.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Md Mahmudul Hassan Mondol, Biswa Nath Bhadra, Sung Hwa Jhung
Summary: A new composite material named PMA(x) @MAF-6 was prepared by combining metal-azolate framework (MAF-6) with phosphomolybdic acid (PMA). Mo2N, dispersed on porous carbon without external nitrogen sources, was obtained by carbonization of PMA(x)@MAF-6. The catalyst Mo2N@C showed remarkable performance in oxidative desulfurization (ODS) with H2O2 as an oxidant, with high turnover frequency and low activation energy.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
