Methanol to Gasoline Conversion over CuO / ZSM-5 Catalyst Synthesized  and Influence of Water on Conversion

Kianfar, Ehsan; Salimi, Mahmoud; Koohestani, Behnam

doi:10.37256/fce.122020499

Cited by 39 publications

(8 citation statements)

References 25 publications

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“…As the results show, further 10 Advances in Materials Science and Engineering increase in Ce and Zr loading reduces the yield of ethylene and propylene. is can be attributed to the increase in the amount of Ce and Zr oxides on the catalyst surface and the blocking of the catalyst cavities, preventing penetration of naphtha molecules into the catalyst cavities and preventing thermal catalytic cracking of Naphtha reactions [111][112][113][114][115].…”

Section: Results Of Ermal Catalytic Cracking Of Naphtha Catalyst Sapo-34mentioning

confidence: 99%

Investigation of Effective Parameters Ce and Zr in the Synthesis of H-ZSM-5 and SAPO-34 on the Production of Light Olefins from Naphtha

Aldeen

Mahmoud

Majdi³

et al. 2022

Advances in Materials Science and Engineering

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In this paper, Ce and Zr modified commercial SAPO-34 and H-ZSM-5 catalysts were synthesized via a wet impregnation method and used as catalysts for the production of light olefins from naphtha. The synthesized catalysts were characterized using SEM, TGA, XRD, BET, and NH3-TPD. Thermal catalytic cracking of parent catalysts (SAPO-34 and H-ZSM-5) and modified catalysts with Ce and Zr on the production of light olefins from naphtha has been studied. The effects of different loading of Ce (2–8 wt.%), Zr (2–5 wt.%), and different temperatures on the yield of ethylene and propylene were also investigated. The yield of ethylene and propylene improved by 21.78 wt% and 23.8 wt%, respectively, over 2% Ce and 2% Zr on SAPO-34 catalyst. This is due to the higher acid sites on the surface of modified catalysts. It was found that H-ZSM-5 with 2% Zr loading has the highest yield of light olefins (40.4%) at 650°C in comparison with unmodified parent catalysts, while Ce loading has less effect on the olefin yield compared to Zr loading. Finally, simultaneous loading of Ce and Zr showed no effect on the light olefin yield owing to the significant decline of acid sites.

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Section: Results Of Ermal Catalytic Cracking Of Naphtha Catalyst Sapo-34mentioning

confidence: 99%

Investigation of Effective Parameters Ce and Zr in the Synthesis of H-ZSM-5 and SAPO-34 on the Production of Light Olefins from Naphtha

Aldeen

Mahmoud

Majdi³

et al. 2022

Advances in Materials Science and Engineering

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“…In conventional lithium-ion batteries, the cathode electrode is made from a type of carbon powder, such as carbon black or activated carbon under various names such as Super P and Ketjenblack, which is used with a binder to bind the powder particles and the catalyst to increase speed [126][127][128][129][130][131]. Nanotechnology can be effective in removing the binder and using a method other than mechanical mixing [132][133][134][135][136][137].…”

Section: Nanotechnology and Batteries With Organic Electrolytementioning

confidence: 99%

A Review of High-Energy Density Lithium-Air Battery Technology: Investigating the Effect of Oxides and Nanocatalysts

Suryatna

Raya

Thangavelu

et al. 2022

Journal of Chemistry

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In vehicles that require a lot of electricity, such as electric vehicles, it is necessary to use high-energy batteries. Among the developed batteries, the lithium-ion battery has shown better performance. This battery has an energy density of 10 equal to that of a lithium-ion battery and uses air oxygen as the active material of the cathode and anode like a lithium-ion battery made of lithium metal. The cathode used in these batteries must have special properties such as strong catalytic activity and high conductivity, and nanotechnology has greatly helped to improve the materials used in the cathode of lithium-air batteries. The importance of proper catalyst distribution and the relationship between the oxide product and the catalyst and the indirect effect of the ORR catalyst on the OER reaction is not present in the fuel cell. The maximum capacity of lithium-air battery theory using graphene under optimal electron conduction conditions and the experimental maximum obtained for graphene by optimizing the structure geometry, examples of structural engineering using carbon fiber and carbon nanotubes in cathode fabrication with the ability to perform the reaction properly while providing space for lithium oxide placement, are examined. This article describes the mechanism of this battery, and its components are examined. The challenges of using this battery and the application of nanotechnology to solve these challenges are also discussed.

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“…e sol-gel method can be used in the production of composite or nanocomposite materials [95][96][97]. For this purpose, continuous porosity at the nanoscale is used as a place for loading secondary materials [98][99][100].…”

Section: Introductionmentioning

confidence: 99%

Nanomaterial by Sol‐Gel Method: Synthesis and Application

Bokov

Jalil

Chupradit

et al. 2021

Advances in Materials Science and Engineering

626

159

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The sol-gel process is a more chemical method (wet chemical method) for the synthesis of various nanostructures, especially metal oxide nanoparticles. In this method, the molecular precursor (usually metal alkoxide) is dissolved in water or alcohol and converted to gel by heating and stirring by hydrolysis/alcoholysis. Since the gel obtained from the hydrolysis/alcoholysis process is wet or damp, it should be dried using appropriate methods depending on the desired properties and application of the gel. For example, if it is an alcoholic solution, the drying process is done by burning alcohol. After the drying stage, the produced gels are powdered and then calcined. The sol-gel method is a cost-effective method and due to the low reaction temperature there is good control over the chemical composition of the products. The sol-gel method can be used in the process of making ceramics as a molding material and can be used as an intermediate between thin films of metal oxides in various applications. The materials obtained from the sol-gel method are used in various optical, electronic, energy, surface engineering, biosensors, and pharmaceutical and separation technologies (such as chromatography). The sol-gel method is a conventional and industrial method for the synthesis of nanoparticles with different chemical composition. The basis of the sol-gel method is the production of a homogeneous sol from the precursors and its conversion into a gel. The solvent in the gel is then removed from the gel structure and the remaining gel is dried. The properties of the dried gel depend significantly on the drying method. In other words, the “removing solvent method” is selected according to the application in which the gel will be used. Dried gels in various ways are used in industries such as surface coating, building insulation, and the production of special clothing. It is worth mentioning that, by grinding the gel by special mills, it is possible to achieve nanoparticles.

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Methanol to Gasoline Conversion over CuO / ZSM-5 Catalyst Synthesized and Influence of Water on Conversion

Cited by 39 publications

References 25 publications

Investigation of Effective Parameters Ce and Zr in the Synthesis of H-ZSM-5 and SAPO-34 on the Production of Light Olefins from Naphtha

Investigation of Effective Parameters Ce and Zr in the Synthesis of H-ZSM-5 and SAPO-34 on the Production of Light Olefins from Naphtha

A Review of High-Energy Density Lithium-Air Battery Technology: Investigating the Effect of Oxides and Nanocatalysts

Nanomaterial by Sol‐Gel Method: Synthesis and Application

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