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Catalysts
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Advances in Catalytic Dry Reforming of Methane
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Advances in Catalytic Dry Reforming of Methane

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Industrial Catalysis".

Deadline for manuscript submissions: 14 February 2025 | Viewed by 2079

Special Issue Editor

Dr. Ahmed A. Ibrahim

E-Mail Website
Guest Editor
Chemical Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
Interests: catalysis; methane reforming; hydrogen production

Special Issue Information

Dear Colleagues,

This is a Special Issue on the catalytic dry reforming of methane (CDRM), which is a chemical process that converts methane and carbon dioxide into synthesis gas, a mixture of carbon monoxide and hydrogen. Methane and carbon dioxide are two greenhouse gases that can be used as feedstocks in this reaction to better manage their energy content and reduce emissions, which makes the process appealing. Additionally, CDRM can be applied to biogases, allowing the production of renewable hydrogen, or, by further converting syngas, to manufacture renewable methanol or Fischer-Tropsch-based diesel or aviation fuels. A catalyst, such as nickel, cobalt, or noble metal, is usually used in the process to speed up the reaction. Alumina, zirconia, and ceria are just a few of the materials on which these catalysts can be supported. CDRM requires a high temperature, typically above 700 °C, due to the endothermic nature of the reaction. One of the many benefits of CDRM is its capacity to generate synthesis gas with the appropriate H2/CO ratio, which may be applied to the manufacturing of chemicals, fuels, and power, among other things. Challenges including coke formation and catalyst deactivation; however, this can shorten the effectiveness and lifespan of CDRM procedures. Research is still being carried out to overcome these problems and create CDRM systems that are more sustainable and effective. We invite researchers to explore and advance the field of catalytic dry reforming of methane (CDRM) by investigating novel catalyst materials, optimising reaction conditions, addressing coke formation and deactivation, and integrating CDRM with renewable energy sources such as biogases.

Dr. Ahmed A. Ibrahim
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • catalytic dry reforming of methane
  • synthesis gas
  • hydrogen production
  • supported catalysts
  • coke formation
  • catalyst deactivation
  • renewable fuels
  • Fischer-Tropsch synthesis
  • biogas

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Published Papers (2 papers)

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Research

15 pages, 5385 KiB  
Article
The Synergistic Effect of Pore Architect and Reducibility in Ceria-Promoted Ni Molecular Sieve for Methane Dry Reforming
by Norah Alwadai, Abdulaziz A. M. Abahussain, Vijay Kumar Shrivastava, Salma A. Al-Zahrani, Anis H. Fakeeha, Naif Alarifi, Mohammed O. Bayazed, Khaled M. Banabdwin, Rawesh Kumar and Ahmed Al-Fatesh
Catalysts 2024, 14(12), 852; https://doi.org/10.3390/catal14120852 - 24 Nov 2024
Viewed by 818
Abstract
Methane and carbon dioxide, the primary contributors to global warming, are now at critical levels, threatening the extinction of numerous organisms on our planet. In this regard, dry reforming of methane reactions have gained considerable attention because of the conversion capacity of CH [...] Read more.
Methane and carbon dioxide, the primary contributors to global warming, are now at critical levels, threatening the extinction of numerous organisms on our planet. In this regard, dry reforming of methane reactions have gained considerable attention because of the conversion capacity of CH4 and CO2 into synthetic/energy-important syngas (H2 and CO). Herein, a molecular sieve (CBV3024E; SiO2/Al2O3 = 30) with ZSM-8-type pore architect, is utilized as the support for the active site of Ni and Ce promoters. Catalysts are characterized by surface area and porosity, X-ray diffraction study, Raman and infrared spectroscopy, thermogravimetry analysis, and temperature-programmed reduction/desorption techniques. A total of 2 wt.% ceria is added over 5Ni/CBV3024E to induce the optimum connectivity of aluminum in the silicate framework. NiO residing in these porous cages are mostly under “prominent interaction with support” which is reduced easily into metallic Ni as the active sites for DRM reactions. The active sites over 5Ni2Ce/CBV3024E remain stable during the DRM reaction and achieve ~58% H2 yield after 300 min TOS at 42,000 mL/(gcat.h) GHSV and ~70% H2 yield after 20 h at 26,000 mL/(gcat.h) GHSV. The high activity after a longer time stream justifies using CBV3024E molecular sieves as the support and ceria as the promoter for Ni-based catalyst towards the DRM reaction. Full article
(This article belongs to the Special Issue Advances in Catalytic Dry Reforming of Methane)
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17 pages, 4225 KiB  
Article
Impact of Ga, Sr, and Ce on Ni/DSZ95 Catalyst for Methane Partial Oxidation in Hydrogen Production
by Salma A. Al-Zahrani, Omer Bellahwel, Ahmed Aidid Ibrahim, Mohammed F. Alotibi, Najat Masood, Sahar Y. Rajeh, Ahmed Al Otaibi, Hessah Difallah A. Al-Enazy and Ahmed S. Al-Fatesh
Catalysts 2024, 14(12), 851; https://doi.org/10.3390/catal14120851 - 24 Nov 2024
Viewed by 1004
Abstract
The greenhouse gas CH4 is more potent than CO2, although both these gases are solely responsible for global warming. The efficient catalytic conversion of CH4 into hydrogen-rich syngas, which also demonstrates economic viability, can deplete the concentration of CH4 [...] Read more.
The greenhouse gas CH4 is more potent than CO2, although both these gases are solely responsible for global warming. The efficient catalytic conversion of CH4 into hydrogen-rich syngas, which also demonstrates economic viability, can deplete the concentration of CH4. This study examines the partial oxidation of methane (POM) prepared by the wetness impregnation process using 5% Ni supported over DSZ95 (93.3% ZrO2 + 6.7% Sc2O3) and promoted with 1% Ga (gallium), 1% Sr (strontium), and 1% Ce (cerium). These catalysts are characterized by surface area porosity, X-ray diffraction, FT-Infrared spectroscopy, Raman infrared spectroscopy, temperature programmed reduction, CO2 temperature-programmed techniques, desorption techniques, thermogravimetry, and transmission electron microscopy. The characterization results demonstrate that Ni is appropriate for the POM because of its crystalline structure, improved metal support contact, and increased thermal stability with Sr, Ce, and Ga promoters. The synthesized catalyst 5Ni+1Ga-DSZ95 maintained stability for 240 min on stream during the POM at 700 °C. Adding a 1% Ga promoter and active metal Ni to the DSZ95 improved the CH4 conversion from 70.00% to 75.90% and raised the H2 yield from 69.21% to 74.80%, while maintaining the reactants’ stoichiometric ratio of (CH4:O2 = 2:1). The 5Ni+1Ga-DSZ95 catalyst is superior to the other catalysts, given its rich catalyst surface, strong metal support interaction, high surface area and low amount of carbon deposit. The high H2/CO ratio (>2.6) and H2 yield close to 75% indicate that 5Ni+1Ga-DSZ95 is a potent industrial catalyst for hydrogen-rich syngas production through partial oxidation of methane. Full article
(This article belongs to the Special Issue Advances in Catalytic Dry Reforming of Methane)
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