Auto-methanation performance of structured Ni-type catalyst for CO2 transformation

Choji Fukuhara; Sakhon Ratchahat; Asuka Kamiyama; Masao Sudoh; Ryo Watanabe

doi:10.1246/cl.190025

Auto-methanation performance of structured Ni-type catalyst for CO₂ transformation

Choji Fukuhara, Sakhon Ratchahat, Asuka Kamiyama, Masao Sudoh, Ryo Watanabe

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The methanation performance of a Ni/CeO₂ structured catalyst having a spiral shape was investigated using a feed material gas containing 1-11 vol % oxygen. The spiral catalyst exhibited high methane yield for a high oxygen concentration (9-11 vol %) and fast feed flow rate even under an auto-methanation condition, which does not require external heating. Such high methane yield was continuously maintained for 60 hours or longer. Under the auto-methanation over the structured catalyst, the reaction field generated high thermal energy, which did not exceed the Tammann temperature of the nickel component, due to selective hydrogen combustion.

Original language	English
Pages (from-to)	441-444
Number of pages	4
Journal	Chemistry Letters
Volume	48
Issue number	5
DOIs	https://doi.org/10.1246/cl.190025
Publication status	Published - 2019 Jan 1
Externally published	Yes

Keywords

Auto-methanation
Carbon capture and utilization
Structured type catalyst

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.190025

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AU - Ratchahat, Sakhon

AU - Kamiyama, Asuka

AU - Sudoh, Masao

AU - Watanabe, Ryo

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N2 - The methanation performance of a Ni/CeO2 structured catalyst having a spiral shape was investigated using a feed material gas containing 1-11 vol % oxygen. The spiral catalyst exhibited high methane yield for a high oxygen concentration (9-11 vol %) and fast feed flow rate even under an auto-methanation condition, which does not require external heating. Such high methane yield was continuously maintained for 60 hours or longer. Under the auto-methanation over the structured catalyst, the reaction field generated high thermal energy, which did not exceed the Tammann temperature of the nickel component, due to selective hydrogen combustion.

AB - The methanation performance of a Ni/CeO2 structured catalyst having a spiral shape was investigated using a feed material gas containing 1-11 vol % oxygen. The spiral catalyst exhibited high methane yield for a high oxygen concentration (9-11 vol %) and fast feed flow rate even under an auto-methanation condition, which does not require external heating. Such high methane yield was continuously maintained for 60 hours or longer. Under the auto-methanation over the structured catalyst, the reaction field generated high thermal energy, which did not exceed the Tammann temperature of the nickel component, due to selective hydrogen combustion.

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