partial oxidation

carbons

ni mo

hydrogenation

steam reforming

carbon dioxide

dry reforming

reforming methane

hydrogen plasma

Journal of CO2 Utilization

Dry reforming of methane (DRM) promises to reduce greenhouse gas emission by converting CO 2 and CH 4 (produced e.g. in anaerobic digestion processes) into syngas with an almost equimolar H 2 /CO ratio suitable for use in Fischer–Tropsch (FT) synthesis for the production of varieties of high value chemicals and liquid fuels. Ni-based catalyst is the most viable catalyst to catalyse the reaction, but its use faces a great challenge due to its propensity to form and accumulate carbonaceous materials on its active surface. In this article, the mechanisms involved in the deactivation of Ni-based catalyst in DRM reaction by carbon deposition and other carbon-induced deactivation mechanisms, which understanding is vital for the improvement of the process, are reviewed. Based on a thorough assessment of literature, perspectives are given on ways to control and mitigate carbon deposition problems related to the use of Ni-based catalysts in DRM by means of manipulating reaction conditions and process parameters as well as through designing and developing highly active coke-resistant Ni-based catalysts. • Ni-based catalyst deactivation by coke formation in CO 2 dry reforming of CH 4 (DRM). • Coke deposition mechanisms on Ni-based catalyst in DRM. • Coke deposition mitigation strategy by manipulating reaction conditions and parameters. • Catalyst development aspects in suppressing coke in DRM.

Formation, control, and elimination of carbon on Ni-based catalyst during CO2 and CH4 conversion via dry reforming process: A review