1
|
Fan S, Shi J, Sun S, Wang J, Wiafe Biney B, Al-shiaani N, Wang S, Guo A, Chen K, Wang Z, Liu H. In-Situ Decontamination of Heavy Metal Containing Wastewater from Oil Refineries into Catalyst for Polycyclic Aromatic Hydrocarbons Hydrogenation Coupled with Water-Gas Shift Reaction. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
2
|
Effect of sulfidation conditions on the unsupported flower-like bimetallic oxide microspheres for the hydrodesulfurization of dibenzothiophene. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.06.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
3
|
Ebrahiminejad M, Karimzadeh R. Diesel hydrocracking and hydrodesulfurization with activated red mud-supported and fluorine-containing NiW nanocatalysts. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
4
|
Sánchez J, Smith KJ, Mondragón F, Moreno A. Bifunctionality of a MoS 2-Amorphous Silica–Alumina-Dispersed Catalyst for Slurry-Phase Hydroconversion: Effect of Acid and Hydrogenating Site Ratios. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00616] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juliana Sánchez
- Química de Recursos Energéticos y Medio Ambiente, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, UdeA−Colombia, Calle 70 No. 52-21, Medellín, Antioquia 050010, Colombia
| | - Kevin J. Smith
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Fanor Mondragón
- Química de Recursos Energéticos y Medio Ambiente, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, UdeA−Colombia, Calle 70 No. 52-21, Medellín, Antioquia 050010, Colombia
| | - Andrés Moreno
- Química de Recursos Energéticos y Medio Ambiente, Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia, UdeA−Colombia, Calle 70 No. 52-21, Medellín, Antioquia 050010, Colombia
| |
Collapse
|
5
|
Akopyan A, Polikarpova P, Vutolkina A, Cherednichenko K, Stytsenko V, Glotov A. Natural clay nanotube supported Mo and W catalysts for exhaustive oxidative desulfurization of model fuels. PURE APPL CHEM 2021. [DOI: 10.1515/pac-2020-0901] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Abstract
Oxidative desulfurization is a promising way to produce, under mild conditions, clean ecological fuels with ultra-low sulfur content. Herein, we present for the first time heterogeneous catalysts based on natural aluminosilicate nanotubes (halloysite) loaded with transition metal oxides for oxidative sulfur removal using hydrogen peroxide as environmentally safe oxidant. The halloysite nanotubes (HNTs) provide acid sites for C–S bond scission, while the Mo and W oxides act as hydrogen peroxide activators. The structure and acidity of both the clay support and catalysts were investigated by low-temperature nitrogen adsorption/desorption, Fourier-transform infrared spectroscopy, X-ray fluorescence analysis, and transmission electron microscopy techniques. These clay-based catalysts revealed the high activity in the oxidation of various classes of sulfur-containing compounds (sulfides, heteroatomic sulfur compounds) under mild reaction conditions. The conversion of various substrates decreases in the following trend: MeSPh > Bn2S > DBT > 4-MeDBT > BT, which deals with substrate electron density and steric hindrance. The influence of the temperature, oxidant to sulfur molar ratio, and reaction time on catalytic behavior was evaluated for Mo- and W-containing systems with various metal content. The complete oxidation of the most intractable dibenzothiophene to the corresponding sulfone was achieved at 80 °C and H2O2:S = 6:1 (molar) for 2 h both for Mo- and W-containing systems. These transition metal oxides HNTs supported catalysts are stable for 10 cycles of dibenzothiophene oxidation, which makes them promising systems for clean fuel production.
Collapse
Affiliation(s)
- Argam Akopyan
- Department of Petroleum Chemistry and Organic Catalysis , Faculty of Chemistry, Lomonosov Moscow State University , GSP-1, 1-3 Leninskiye Gory , 119991 Moscow , Russia
| | - Polina Polikarpova
- Department of Petroleum Chemistry and Organic Catalysis , Faculty of Chemistry, Lomonosov Moscow State University , GSP-1, 1-3 Leninskiye Gory , 119991 Moscow , Russia
| | - Anna Vutolkina
- Department of Petroleum Chemistry and Organic Catalysis , Faculty of Chemistry, Lomonosov Moscow State University , GSP-1, 1-3 Leninskiye Gory , 119991 Moscow , Russia
| | - Kirill Cherednichenko
- Department of Physical and Colloid Chemistry , Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (NRU) , 65 Leninsky Prospekt , 119991 Moscow , Russia
| | - Valentine Stytsenko
- Department of Physical and Colloid Chemistry , Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (NRU) , 65 Leninsky Prospekt , 119991 Moscow , Russia
| | - Aleksandr Glotov
- Department of Physical and Colloid Chemistry , Faculty of Chemical and Environmental Engineering, Gubkin Russian State University of Oil and Gas (NRU) , 65 Leninsky Prospekt , 119991 Moscow , Russia
| |
Collapse
|