Catalytic methanation of CO2 in biogas: experimental results from a reactor at full scale

Literature Information

Publication Date 2019-11-28
DOI 10.1039/C9RE00351G
Impact Factor 4.239
Authors

Christian Dannesboe, John Bøgild Hansen, Ib Johannsen


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Abstract

In a future energy scenario without fossil fuels carbon from renewable biomass will be a limited resource. Full carbon utilization through catalytic methanation of CO2 in biogas appears to be a low hanging fruit. However, concerns on catalyst cost and wear, elaborate reactor cooling requirements and significant costs related to post-treatment are reported from theoretical studies and early demonstration plants. In this study, we show how a full scale methanation reactor can be operated under favourable process conditions for 1000 hours without complications. We find that operating the reactor at a sub-stoichiometric ratio of 3.9 is optimal in order to deliver pipeline quality gas. The temperature profile shows how start and stop can be performed within minutes, and the combined studies presented are a breakthrough in direct catalytic upgrading of biogas ready for industrial scale implementation.

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Source Journal

Reaction Chemistry & Engineering

Reaction Chemistry & Engineering
CiteScore: 0
Self-citation Rate: 8.8%
Articles per Year: 284

Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.

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