Year: 2025
Type: article
Abstract: The catalytic methanation reaction allows for the attainment of methane from carbon dioxide and hydrogen. This reaction is particularly interesting for the direct upgrading of biogas, which mainly contains methane and carbon dioxide, into biomethane. This work focused on the synthesis and evaluation of natural clay-supported nickel catalysts in the catalytic methanation reaction. Natural clay could be directly used as a low-cost catalyst support for the deposition of small nickel nanoparticles (1–15 nm) by the standard incipient wetness impregnation method. These catalysts showed high activity and excellent selectivity into methane and excellent catalytic stability (80% carbon dioxide conversion, nearly 100% methane selectivity at 500 °C, 1 bar, and WHSV = 17,940 mL·gcat−1·h−1 for 48 h on stream) and outperformed their counterparts prepared with an industrial alumina support as reference.
Source: Molecules
Authors: Alejandra Cue Gonzalez, Elsa Weiss-Hortala, Quoc Nghi Pham, Doan Pham Minh
Institutions: Centre National de la Recherche Scientifique, IMT Mines Albi, Centre de Recherche d'Albi en génie des Procédés, des SOlides Divisés, de l'Énergie et de l'Environnement, Université de Toulouse, Université Paris-Saclay, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Chulalongkorn University
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,258
OpenAlex ID: W4410236646