Supported Catalysts for CO2 Methanation: A ReviewReportar como inadecuado


Supported Catalysts for CO2 Methanation: A Review


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1

Civil Engineering, Energy, Environmental and Materials Department, University Mediterranea of Reggio Calabria, 89134 Reggio Calabria, Italy

2

Consorzio Interuniversitario per la Scienza e la Tecnologia dei Materiali—INSTM, 50121 Firenze, Italy

3

EnvironmentalandChemical Engineering Department, University of Calabria, 87036 Rende, Italy

4

Consiglio Nazionale delle Ricerche—Istituto di Tecnologie Avanzate per l’Energia -Nicola Giordano-, IT-98126 Messina, Italy





*

Author to whom correspondence should be addressed.



Academic Editors: Benoît Louis, Qiang Wang and Marcelo Maciel Pereira

Abstract CO2 methanation is a well-known reaction that is of interest as a capture and storage CCS process and as a renewable energy storage system based on a power-to-gas conversion process by substitute or synthetic natural gas SNG production. Integrating water electrolysis and CO2 methanation is a highly effective way to store energy produced by renewables sources. The conversion of electricity into methane takes place via two steps: hydrogen is produced by electrolysis and converted to methane by CO2 methanation. The effectiveness and efficiency of power-to-gas plants strongly depend on the CO2 methanation process. For this reason, research on CO2 methanation has intensified over the last 10 years. The rise of active, selective, and stable catalysts is the core of the CO2 methanation process. Novel, heterogeneous catalysts have been tested and tuned such that the CO2 methanation process increases their productivity. The present work aims to give a critical overview of CO2 methanation catalyst production and research carried out in the last 50 years. The fundamentals of reaction mechanism, catalyst deactivation, and catalyst promoters, as well as a discussion of current and future developments in CO2 methanation, are also included. View Full-Text

Keywords: carbon dioxide; methane; metal catalysts; hydrogenation; power-to-gas carbon dioxide; methane; metal catalysts; hydrogenation; power-to-gas





Autor: Patrizia Frontera 1,2, Anastasia Macario 3,* , Marco Ferraro 4 and PierLuigi Antonucci 1

Fuente: http://mdpi.com/



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