Results 1 to 10 of about 8,577 (208)

Hydrodesulfurization of methanethiol over Co-promoted MoS2 model catalysts [PDF]

Nature Communications
The process of hydrodesulfurization is one of the most important heterogeneous catalytic reactions in industry as it helps with reducing global SOx emissions by selectively removing the sulfur contaminants from commercial fuel.
M. K. Prabhu, J. N. Louwen, E. T. C. Vogt, I. M. N. Groot   +3 more
doaj   +2 more sources

Genetic and metabolic engineering approaches for enhanced biodesulfurization of petroleum fractions [PDF]

Frontiers in Bioengineering and Biotechnology
Sulfur, an abundant component of crude oil, causes severe damage to the environment, poses risks to human health, and poisons the catalysts used in combustion engines.
Asheemita Bagchi, Preeti Srivastava
doaj   +2 more sources

Bifunctional NiMo/HY-γ-Al2O3 catalysts for an effective production of ultra-low sulfur diesel

Case Studies in Chemical and Environmental Engineering, 2023
A series of hydrodesulfurization (HDS) of NiMo supported on HY zeolites and γ-Al2O3 (NiMo/HY-γ-Al2O3) have been prepared. The appropriate amount of HY zeolites and HNO3 were necessary to optimize the textural properties and acidity of the catalysts ...
Carolus B. Rasrendra, Ellen G. Maulidanti, Sarah E.P. Darlismawantyani, Nadya Nurdini, Wawan Rustyawan, Subagjo, Grandprix T.M. Kadja   +6 more
doaj   +1 more source

Molecular simulation on mechanism of thiophene hydrodesulfurization on surface of NiP

Energy Exploration & Exploitation, 2021
Hydrodesulfurization reaction, as the last step of hydrothermal cracking reaction, is of great significance for the reduction of viscosity and desulfurization of heavy oil.
Songjian Du, Tingting Li, Xinwei Wang, Liqiang Zhang, Zhengda Yang, Riyi Lin, Tanxiao Zhu   +6 more
doaj   +1 more source

Mg-modified CoMo/Al2O3 with enhanced catalytic activity for the hydrodesulfurization of 4, 6-dimethyldibenzothiophene

Catalysis Communications, 2021
Hydrodesulfurization of 4, 6-dimethyldibenzothiophene is of great significance for emission reduction and environmental protection. Herein, the effects of Mg addition on CoMo/Al2O3 were systematically studied for the hydrodesulfurization of 4, 6 ...
Ligang Chen, Yuan Xu, Baohuan Wang, Jimmy Yun, Fariba Dehghani, Yating Xie, Xin Liang   +6 more
doaj   +1 more source

Study of Carbon Composites in Deep Desulfurization

Taiyuan Ligong Daxue xuebao, 2022
Carbon materials have large specific surface areas and tunable pore size distributions, which make them potential adsorption and catalytic materials. In recent years, carbon materials have been widely used in the field of deep desulfurization.
Ge ZHANG, Guohua LI, Fan YANG, Yongfeng LI   +3 more
doaj   +1 more source

Reaction Kinetics of MoCo/Al2O3-Meso-ZSM-5 Catalyst for Ultra-Deep Hydrodesulfurization of Diesel Fuel [PDF]

Journal of Petroleum Science and Technology, 2020
Series of Mo-Co type catalysts were supported on Al2O3, Al2O3-meso-ZSM-5-Al2O3-typical-ZSM-5 and tested in the hydrodesulfurization (HDS) of straight-run diesel feedstocks. The materials were characterized by N2 physisorption, X-ray diffraction, scanning
Liu Li, Yang Min, Duan Weiyu, Sun Jin, Yao Yunhai, Li Shicai, Guo Rong   +6 more
doaj   +1 more source

Tailoring NiMo-Based Catalysts for Production of Low-Viscosity Sustainable Hydrocarbon Bases for Drilling Muds from Secondary Gas Oils

Energies, 2023
This article presents the prospect of using the process of deep hydrodesulfurization and hydrodearomatization of secondary gas oils using highly active NiMo catalysts to obtain hydrocarbon bases for drilling fluids.
Aleksei Iusovskii, Roman Boldushevskii, Aleksandr Mozhaev, Olga Shmelkova, Elizaveta Pavlycheva, Aleksandr Koklyukhin, Pavel Nikulshin   +6 more
doaj   +1 more source

Optimal Choice of the Preparation Procedure and Precursor Composition for a Bulk Ni–Mo–W Catalyst

Inorganics, 2023
Among the known synthesis procedures and reagents for unsupported Ni–Mo–W catalysts, there is no consensus about optimal preparation conditions of their precursors.
Ksenia A. Nadeina, Sergey V. Budukva, Yuliya V. Vatutina, Polina P. Mukhacheva, Evgeniy Yu. Gerasimov, Vera P. Pakharukova, Igor P. Prosvirin, Tatyana V. Larina, Oleg V. Klimov, Aleksandr S. Noskov, Victor V. Atuchin   +10 more
doaj   +1 more source

Synthesis of trimetallic nanocatalysts of alumina supported Ni-Mo-W by ultrasound-precipitation method for thiophene hydrodesulfurization [PDF]

شیمی کاربردی روز, 2020
In this study trimetallic Ni-Mo-W/alumina catalysts with different percentages of tungsten were synthesized by a hybrid method of ultrasound-precipitation.
Dariush Moghaddam Nejad, Somaiyeh Allahyari, Nader Rahemi   +2 more
doaj   +1 more source