Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.8
3.9
Journals
Catalysts
Special Issues
Nickel-Based Catalysts for Hydrocarbon Fuel Reforming
share announcement

Nickel-Based Catalysts for Hydrocarbon Fuel Reforming

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

Deadline for manuscript submissions: closed (15 March 2021) | Viewed by 7756

Special Issue Editors

Dr. Dmitry Pashchenko

E-Mail Website
Guest Editor
Heat Power Department, Samara State Technical University, Molodogvardeiskaya Str. 244, 443100 Samara, Russia
Interests: thermochemical waste heat recuperation; hydrocarbon fuel reforming; CFD-modeling; thermodynamic analysis; combustion
Dr. Maxim Nikitin

E-Mail Website
Guest Editor
Institute of Architecture and Civil Engineering, Samara State Technical University, 443001 Samara, Russia
Interests: heat-power; numerical modeling; heat and mass transfer; OpenFOAM; methane reforming

Special Issue Information

Dear Colleagues,

Nickel-based catalysts are widely used in various industries. The processes of reforming hydrocarbons, in particular natural gas, are the main method of hydrogen and synthesis gas production. In addition, nickel-based catalysts are widely used in thermochemical waste-heat recuperation systems due to their low cost and high efficiency. Despite significant advances in the development of nickel-based catalysts, there is great potential for increasing their efficiency. For example, increasing the resistance to carbon formation is an urgent task in the development of new catalysts, and the development in material science makes it possible to obtain new catalyst carriers. An important place in the development of catalysts is occupied by a comprehensive study of not only the processes of catalysis but also flow dynamics, heat, and mass transfer.

The aim of this Special Issue is to cover promising recent research and novel trends in the field of nickel-based catalysts for various chemical processes, including hydrocarbon reforming. The development of nickel-based catalysts involves many aspects of materials science, including synthesis, reactivity, mechanical properties, flow stability and contact mechanics, as well as gas–solid reaction engineering. Studies offering material design would also be of great interest. Moreover, flow dynamics and heat and mass transfer processes are interesting for the development of new nickel-based catalysts; these topics also can be discussed in this Special Issue.

Dr. Dmitry Pashchenko
Dr. Maxim Nikitin
Guest Editors

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 2700 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

  • methane reforming
  • catalyst
  • packed bed
  • syngas production
  • nickel catalyst
  • CFD-modeling

Published Papers (3 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

17 pages, 6504 KiB  
Article
Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming
by Patrizia Frontera, Angela Malara, Anastasia Macario, Mariachiara Miceli, Lucio Bonaccorsi, Marta Boaro, Alfonsina Pappacena, Alessandro Trovarelli and Pier Luigi Antonucci
Catalysts 2023, 13(1), 165; https://doi.org/10.3390/catal13010165 - 10 Jan 2023
Cited by 1 | Viewed by 1276
Abstract
In the present work, the catalytic behavior of nickel-based catalysts supported on ceria/zirconia, undoped and doped with lanthanum and neodymium (3.5Ni/Ce0.8La0.5Nd0.2Zr0.13O2−x), was investigated under different reactions: steam reforming, partial oxidation and autothermal reforming [...] Read more.
In the present work, the catalytic behavior of nickel-based catalysts supported on ceria/zirconia, undoped and doped with lanthanum and neodymium (3.5Ni/Ce0.8La0.5Nd0.2Zr0.13O2−x), was investigated under different reactions: steam reforming, partial oxidation and autothermal reforming of different fuels (methane, biogas, and propane). The catalytic properties of these catalysts were evaluated at a temperature of 800 °C, under atmospheric pressure, at GSHV = 120,000 h−1, using steam/carbon and oxygen/carbon ratio, respectively, of S/C = 2.5 and O/C = 0.5 and, in the case of autothermal conditions, with the addition of H2S (100 ppm) as a contaminant. Depending on the tested fuel, ATR, SR, and POX reactions over doped and undoped catalysts showed different results. In particular, the doped catalyst, due to neodymium and lanthanum doping, better distributed nickel species on the catalyst surface, promoting a higher concentration of defect groups and oxygen vacancies. This resulted in improved catalytic performance and resistance to deactivation. Endurance catalytic test also confirmed the beneficial effect of the doped catalysts. Full article
(This article belongs to the Special Issue Nickel-Based Catalysts for Hydrocarbon Fuel Reforming)
►▼ Show Figures

Figure 1

22 pages, 8343 KiB  
Article
Effect of the Ni/Al Ratio on the Performance of NiAl2O4 Spinel-Based Catalysts for Supercritical Methylcyclohexane Catalytic Cracking
by Kyoung Ho Song, Soon Kwan Jeong, Byung Hun Jeong, Kwan-Young Lee and Hak Joo Kim
Catalysts 2021, 11(3), 323; https://doi.org/10.3390/catal11030323 - 2 Mar 2021
Cited by 9 | Viewed by 3135
Abstract
Supercritical methylcyclohexane cracking of NiAl2O4 spinel-based catalysts with varying Ni/Al deficiencies was investigated. Thus, catalysts with Ni content of 10–50 wt.% were prepared by typical co-precipitation methods. The calcined, reduced, and spent catalysts were characterized by X-ray diffraction, O2 [...] Read more.
Supercritical methylcyclohexane cracking of NiAl2O4 spinel-based catalysts with varying Ni/Al deficiencies was investigated. Thus, catalysts with Ni content of 10–50 wt.% were prepared by typical co-precipitation methods. The calcined, reduced, and spent catalysts were characterized by X-ray diffraction, O2 temperature-programmed oxidation, NH3 temperature-programmed desorption, N2 physisorption, O2 chemisorption, scanning and transmission electron microscopy, and X-ray fluorescence. The performance and physicochemical properties of the reference stoichiometric Ni3Al7 catalyst differed significantly from those of the other catalysts. Indeed, the Ni-deficient Ni1Al9 catalyst led to the formation of large Ni particles (diameter: 20 nm) and abundant strong acid sites, without spinel structure formation, owing to the excess Al. These acted with sufficient environment and structure to form the coke precursor nickel carbide, resulting in a pressure drop within 17 min. On the other hand, the additional NiO linked to the NiAl2O4 spinel structure of the Al-deficient Ni5Al5 catalyst formed small crystals (10 nm), owing to the excess Ni, and displayed improved Ni dispersion. Thus, dehydrogenation proceeded effectively, thereby improving the resistance to coke formation. This catalytic behavior further demonstrated the remarkable activity and stability of this catalyst under mild conditions (450 °C and 4 Mpa). Full article
(This article belongs to the Special Issue Nickel-Based Catalysts for Hydrocarbon Fuel Reforming)
►▼ Show Figures

Graphical abstract

13 pages, 2518 KiB  
Article
The Effects of CeO2 and Co Doping on the Properties and the Performance of the Ni/Al2O3-MgO Catalyst for the Combined Steam and CO2 Reforming of Methane Using Ultra-Low Steam to Carbon Ratio
by Nichthima Dharmasaroja, Tanakorn Ratana, Sabaithip Tungkamani, Thana Sornchamni, David S. A. Simakov and Monrudee Phongaksorn
Catalysts 2020, 10(12), 1450; https://doi.org/10.3390/catal10121450 - 11 Dec 2020
Cited by 15 | Viewed by 2697
Abstract
In this paper, the 10 wt% Ni/Al2O3-MgO (10Ni/MA), 5 wt% Ni-5 wt% Ce/Al2O3-MgO (5Ni5Ce/MA), and 5 wt% Ni-5 wt% Co/Al2O3-MgO (5Ni5Co/MA) catalysts were prepared by an impregnation method. The effects of [...] Read more.
In this paper, the 10 wt% Ni/Al2O3-MgO (10Ni/MA), 5 wt% Ni-5 wt% Ce/Al2O3-MgO (5Ni5Ce/MA), and 5 wt% Ni-5 wt% Co/Al2O3-MgO (5Ni5Co/MA) catalysts were prepared by an impregnation method. The effects of CeO2 and Co doping on the physicochemical properties of the Ni/Al2O3-MgO catalyst were comprehensively studied by N2 adsorption-desorption, X-ray diffraction (XRD), transmission electron microscopy (TEM), H2 temperature programmed reduction (H2-TPR), CO2 temperature programmed reduction (CO2-TPD), and thermogravimetric analysis (TGA). The effects on catalytic performance for the combined steam and CO2 reforming of methane with the low steam-to-carbon ratio (S/C ratio) were evaluated at 620 °C under atmospheric pressure. The appearance of CeO2 and Co enhanced the oxygen species at the surface that decreased the coke deposits from 17% for the Ni/MA catalyst to 11–12% for the 5Ni5Ce/MA and 5Ni5Co/MA catalysts. The oxygen vacancies in the 5Ni5Ce/MA catalyst promoted water activation and dissociation, producing surface oxygen with a relatively high H2/CO ratio (1.6). With the relatively low H2/CO ratio (1.3), the oxygen species at the surface was enhanced by CO2 activation-dissociation via the redox potential in the 5Ni5Co/MA catalyst. The improvement of H2O and CO2 dissociative adsorption allowed the 5Ni5Ce/MA and 5Ni5Co/MA catalysts to resist the carbon formation, requiring only a low amount of steam to be added. Full article
(This article belongs to the Special Issue Nickel-Based Catalysts for Hydrocarbon Fuel Reforming)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-3
Back to TopTop