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Kartavova KE, Mashkin MY, Kostin MY, Finashina ED, Kalmykov KB, Kapustin GI, Pribytkov PV, Tkachenko OP, Mishin IV, Kustov LM, Kustov AL. Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Opening. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:936. [PMID: 36903814 PMCID: PMC10005695 DOI: 10.3390/nano13050936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
Because of the growing demand for high-quality fuels, the light cycle oil fraction improvement including cetane number improvement is important. The main way to reach this improvement is the ring opening of cyclic hydrocarbons, and a highly effective catalyst should be found. Cyclohexane ring openings are a possible option to investigate the catalyst activity. In this work, we investigated rhodium-loaded catalysts prepared using the commercially available industrial supports: single-component ones, SiO2 and Al2O3; and mixed oxides CaO + MgO + Al2O3 and Na2O + SiO2 + Al2O3. The catalysts were prepared by incipient wetness impregnation and investigated by N2 low-temperature adsorption-desorption, XRD, XPS, DRS UV-Vis and DRIFT spectroscopy, SEM, and TEM with EDX. The catalytic tests were performed in cyclohexane ring opening in the range of 275-325 °C. The best result was demonstrated by the sample 1Rh/CaMgAlO: the selectivity to n-hexane was about 75% while the cyclohexane conversion was about 25% at 275 °C. The space-time yield was up to 12 mmoln-hexane gcat-1h-1.
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Affiliation(s)
- Kristina E. Kartavova
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Institute of Ecotechnologies, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
| | - Mikhail Yu. Mashkin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Institute of Ecotechnologies, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
| | - Mikhail Yu. Kostin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
| | | | | | | | - Petr V. Pribytkov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
| | - Olga P. Tkachenko
- N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
| | - Igor V. Mishin
- N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
| | - Leonid M. Kustov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Institute of Ecotechnologies, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
| | - Alexander L. Kustov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
- Institute of Ecotechnologies, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
- N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia
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Correlation of Rh Particle Size with CO Chemisorption: Effect on the Catalytic Oxidation of MTBE. JOURNAL OF COMPOSITES SCIENCE 2019. [DOI: 10.3390/jcs3030081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study was conducted to identify the correlation between the CO chemisorption (linear interaction and gem dicarbonyl) and the specific size of rhodium particles, and further to determine the influence of this relationship on the catalytic oxidation reaction of methyl tert-butyl ether (MTBE). During the synthesis, first, TiO2 was developed by the sol-gel method under acidic conditions. Second, Rh was deposited (1 wt %) by the incipient wetness impregnation method. Later, with the aim of controlling the particle size, the Rh/TiO2 materials were crystallized at different reduction conditions during 3 h heat treatment. The results obtained by TEM micrographs indicated that the average particle size varies between 1.0 and 8.1 nm, depending on the conditions of heat treatment. From the histogram analysis of each TEM micrograph, two correlations were made: (i) the gem-dicarbonyl interaction was typical of Rh particles ≤ 1.5 nm, and (ii) a linear interaction, bridged interaction and dentate interaction were observed in particles ≥ 1.6 nm. The gem-dicarbonyl interaction (particle size ≤ 1.5 nm) was the most active in the oxidation reaction of MTBE.
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Sánchez‐Trinidad C, del Angel G, Torres‐Torres G, Cervantes‐Uribe A, Pavón AAS, Guerra‐Que Z, Arévalo‐Pérez JC, Tzompantzi‐Morales FJ. Effect of the CuAl 2O 4 and CuAlO 2 Phases in Catalytic Wet Air Oxidation of ETBE and TAME using CuO/γ-Al 2O 3 catalysts. ChemistryOpen 2019; 8:1143-1150. [PMID: 31467831 PMCID: PMC6712404 DOI: 10.1002/open.201900080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 07/20/2019] [Indexed: 11/13/2022] Open
Abstract
This paper studies Cu/Al2O3 catalysts, synthesized in two ways: copper deposit in the synthesis of alumina (sol gel) and incipient impregnation stabilized at 400 °C. The materials were characterized by X-ray diffraction studies, nitrogen physisorption, temperature programmed reduction of H2, dehydration of isopropanol, scanning electronic microscopy, transmission electronic microscopy, which were evaluated in the liquid phase oxidation reaction of ethyl tert-butyl ether and tert-amyl methyl ether. The formation of CuAl2O4 and CuAlO2 in the samples synthesized by sol gel, led to a modification of the texture, thus resulting in an expansion of the specific area of the materials. CuAl2O4 and CuAlO2 have been identified by DRX from a content of 10 % Copper, the first showed the highest intensity with this technique. In the same way, these species favor the presence of Lewis acid sites; this is reflected in the materials with (Di-isopropyl Ether) DIPE of 96.7 % and 91.1 % for the samples SAlCu5 and SAlCu15 respectively. The catalytic activity of the materials prepared by sol gel is in the function of the number of surface acid sites, the smaller particle size of the Cu and the surface of the contact, in the case of the ETBE meanwhile for TAME the activity was based mainly on the strength of the present acid sites. With impregnated materials, the activity is attributed to the smaller particle size of the Cu and the greater strength of the surface acid sites in the solid. The formation of spinel species inhibits the leaching phenomenon in the reaction milieu.
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Affiliation(s)
- Cecilia Sánchez‐Trinidad
- Universidad Juárez Autónoma de Tabasco, Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación AmbientalCentro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), DACBKm. 1 carretera Cunduacán-Jalpa de Méndez AP. 24C.P. 86690Cunduacán TabascoMéxico
| | - Gloria del Angel
- Universidad Autónoma Metropolitana-Unidad IztapalapaDepartamento de Química, Área de CatálisisAv. San Rafael Atlixco 186C.P. 09340; A. P. 55–534México D.F.México
| | - Gilberto Torres‐Torres
- Universidad Juárez Autónoma de Tabasco, Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación AmbientalCentro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), DACBKm. 1 carretera Cunduacán-Jalpa de Méndez AP. 24C.P. 86690Cunduacán TabascoMéxico
| | - Adrián Cervantes‐Uribe
- Universidad Juárez Autónoma de Tabasco, Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación AmbientalCentro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), DACBKm. 1 carretera Cunduacán-Jalpa de Méndez AP. 24C.P. 86690Cunduacán TabascoMéxico
| | - A. Abiu Silahua Pavón
- Universidad Juárez Autónoma de Tabasco, Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación AmbientalCentro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), DACBKm. 1 carretera Cunduacán-Jalpa de Méndez AP. 24C.P. 86690Cunduacán TabascoMéxico
| | - Zenaida Guerra‐Que
- Universidad Juárez Autónoma de Tabasco, Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación AmbientalCentro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), DACBKm. 1 carretera Cunduacán-Jalpa de Méndez AP. 24C.P. 86690Cunduacán TabascoMéxico
- Instituto Tecnológico de VillahermosaDepartamento de Ing. Química-Bioquímica-AmbientalKm. 3.5 Carretera Villahermosa-Frontera, Cd. IndustrialC.P. 86010Villahermosa, TabascoMéxico
| | - Juan Carlos Arévalo‐Pérez
- Universidad Juárez Autónoma de Tabasco, Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación AmbientalCentro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), DACBKm. 1 carretera Cunduacán-Jalpa de Méndez AP. 24C.P. 86690Cunduacán TabascoMéxico
| | - Fancisco J. Tzompantzi‐Morales
- Universidad Autónoma Metropolitana-Unidad IztapalapaDepartamento de Química, Área de CatálisisAv. San Rafael Atlixco 186C.P. 09340; A. P. 55–534México D.F.México
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Kumari M, Saroha AK. Performance of various catalysts on treatment of refractory pollutants in industrial wastewater by catalytic wet air oxidation: A review. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 228:169-188. [PMID: 30218904 DOI: 10.1016/j.jenvman.2018.09.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Revised: 08/29/2018] [Accepted: 09/01/2018] [Indexed: 06/19/2023]
Abstract
The tremendous increase of industrialization and urbanization worldwide causes the depletion of natural resources such as water and air which urges the necessity to follow the environmental sustainability across the globe. This requires eco-friendly and economical technologies for depollution of wastewater and gases or zero emission approach. Therefore, in this context the treatment and reuse of wastewater is an environmental friendly approach due to shortage of fresh water. Catalytic wet air oxidation (CWAO) is a promising technology for the treatment of toxic and non-biodegradable organic pollutants in the wastewater generated from various industries. Various heterogeneous catalysts have been extensively used for treatment of various model pollutants such as phenols, carboxylic acids, nitrogenous compounds and different types of industrial effluents. The present review focuses on the literature published on the performances of various noble and non-noble metal catalysts for the treatment of various pollutants by CWAO. Reports on biodegradability enhancement of industrial wastewater containing toxic contaminants by CWAO are reviewed. Detailed discussion is made on catalyst deactivation and their mitigation study and also on the various factors which affects the CWAO reaction.
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Affiliation(s)
- Manjari Kumari
- Department of Chemical Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
| | - Anil K Saroha
- Department of Chemical Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India
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Torres-Torres G, Cuauhtémoc-López I, Espinosa de Los Monteros A, Frías-Márquez DM, Arévalo Pérez JC, Del Angel G. Water remediation contaminated with MTBE using a catalytic oxidation process in batch reactor: influence of the cerium loading on the activity and CO 2 selectivity. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 78:1509-1516. [PMID: 30427791 DOI: 10.2166/wst.2018.430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Destruction of methyl tert-butyl ether (MTBE) in liquid phase and in a batch reactor was studied using ruthenium catalysts over alumina support, modified with different cerium loadings. Ce loading increment causes an increase in the particle size from 1.26 nm to 2.3 nm, enhancing the MTBE oxidation (at 150 °C), and the selectivity toward CO2. The high catalytic activity of Ru/ACe10 is attributed to the species Ce4+-O2--M that could favor the oxygen transfer between the catalyst surface and the adsorbed species by a redox mechanism. Thus, CeOx plays an important role in both enhancing the affinity between MTBE and catalyst during MTBE adsorption and promoting the catalytic activity for MTBE oxidation.
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Affiliation(s)
- G Torres-Torres
- Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación Ambiental, Universidad Juárez Autónoma de Tabasco, Centro de Investigación de Ciencia y Tecnología Aplicada (CICTAT), DACB, Km.1 carretera Cunduacán-Jalpa de Méndez, C.P. 86690, Cunduacán, Tabasco, México E-mail:
| | - I Cuauhtémoc-López
- Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación Ambiental, Universidad Juárez Autónoma de Tabasco, Centro de Investigación de Ciencia y Tecnología Aplicada (CICTAT), DACB, Km.1 carretera Cunduacán-Jalpa de Méndez, C.P. 86690, Cunduacán, Tabasco, México E-mail:
| | - A Espinosa de Los Monteros
- Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación Ambiental, Universidad Juárez Autónoma de Tabasco, Centro de Investigación de Ciencia y Tecnología Aplicada (CICTAT), DACB, Km.1 carretera Cunduacán-Jalpa de Méndez, C.P. 86690, Cunduacán, Tabasco, México E-mail:
| | - Dora Ma Frías-Márquez
- Centro de Investigación de Ciencia y Tecnología Aplicada (CICTAT), DAIA, Laboratorio de Nanotecnología y Catálisis Ambiental, Universidad Juárez Autónoma de Tabasco, Km.1 carretera Cunduacán-Jalpa de Méndez, C.P. 86690, Cunduacán, Tabasco, México
| | - J C Arévalo Pérez
- Laboratorio de Nanomateriales Catalíticos Aplicados al Desarrollo de Fuentes de Energía y Remediación Ambiental, Universidad Juárez Autónoma de Tabasco, Centro de Investigación de Ciencia y Tecnología Aplicada (CICTAT), DACB, Km.1 carretera Cunduacán-Jalpa de Méndez, C.P. 86690, Cunduacán, Tabasco, México E-mail:
| | - G Del Angel
- CBI, Laboratorio de Catálisis, Universidad Autónoma Metropolitana-I, Av. San Rafael Atlixco 186, Col. Vicentina, C.P. 09340, México, DF, México
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Study of catalytic activity and product selectivity of M/Al2O3-CeO2 (M = Pt-Ru, Ru, and Pt) in catalytic wet air oxidation of methylamine. CHINESE JOURNAL OF CATALYSIS 2014. [DOI: 10.1016/s1872-2067(14)60091-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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