Direct Reduction in Greenhouse Gases by Continuous Dry (CO 2 ) Reforming of Methane over Ni-Containing SHS Catalysts

Galina Xanthopoulou, Savvas Varitis, Manapkhan Zhumabek, Konstantinos Karanasios, George Vekinis, Svetlana A. Tungatarova and Tolkyn S. Baizhumanova
Additional contact information
Galina Xanthopoulou: Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310 Athens, Greece
Savvas Varitis: Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310 Athens, Greece
Manapkhan Zhumabek: D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev Str., Almaty 050010, Kazakhstan
Konstantinos Karanasios: Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310 Athens, Greece
George Vekinis: Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310 Athens, Greece
Svetlana A. Tungatarova: D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev Str., Almaty 050010, Kazakhstan
Tolkyn S. Baizhumanova: D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev Str., Almaty 050010, Kazakhstan

Energies, 2021, vol. 14, issue 19, 1-13

Abstract: The world of energy is on the cusp of profound transformation. Hydrogen or hydrogen-containing fuel mixtures in the form of synthesis gas, as carriers of clean energy, will be in the short term among the most efficient solutions to pressing environmental problems, reducing the amount of greenhouse gases as well as pollution of cities and dependence on oil-based fuels. Carbon dioxide conversion of methane is the most promising method for the production of synthesis gas due to the simultaneous consumption of two greenhouse gases and, accordingly, a successful solution to environmental problems. Ni/Mn-based catalysts have been prepared by self-propagating high-temperature synthesis (SHS) for this process. The samples were characterized by X-ray diffraction, scanning electron microscopy, and nitrogen porosimetry. The effects of the catalysts’ composition on activity, selectivity, and product yield were investigated. The influence of the content of Ni, Mn on the behavior of catalysts has been established. Comparison of spinels with different component ratios showed that they have a defective structure. Non-stoichiometric spinels with highly defective catalyst structures were obtained due to very high heating and cooling rates during SHS. They work as active sites, which underlies the high activity of the catalysts.

Keywords: biogas; synthesis gas; hydrogen; reforming (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/19/6078/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/19/6078/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:19:p:6078-:d:641951

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().