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Article Dans Une Revue Applied Catalysis A : General Année : 2023

Orientating the plasma-catalytic conversion of CO2 and CH4 toward liquid products by using a composite catalytic bed

Résumé

This work aims to bring a potential solution for improving the synthesis of liquid organic products directly from CO2 and CH4 by plasma catalysis under ambient conditions in terms of yield and selectivity. To do that, a composite-catalytic bed is set up in a dielectric barrier discharge reactor where iron, cobalt, SiO2, and HZSM-5 are associated through three different configurations. The results reveal that a cobalt-based mixed granular configuration exhibits excellent potential for synthesizing long-chain products (up to C8), while iron-based catalysts produce preferentially short-chain oxygenates: acetic acid (∼26%) or methanol (∼24%), with low energy cost depending on the ratio of reactants and the configuration. This work ultimately shows that the use of a composite-catalytic bed submitted to non-equilibrium electric discharges can offer new perspectives of improvement for directly synthesizing liquid products from CO2 and CH4 while manipulating the distribution of the products.
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Dates et versions

hal-03937070 , version 1 (13-01-2023)

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Di Li, Vandad-Julien Rohani, Aravind Parakkulam Ramaswamy, Mohamed Sennour, Frédéric Georgi, et al.. Orientating the plasma-catalytic conversion of CO2 and CH4 toward liquid products by using a composite catalytic bed. Applied Catalysis A : General, 2023, 650, pp.119015. ⟨10.1016/j.apcata.2022.119015⟩. ⟨hal-03937070⟩
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