Chemistry Letters
Online ISSN : 1348-0715
Print ISSN : 0366-7022
ISSN-L : 0366-7022
Letter
Auto-methanation Performance of Structured Ni-type Catalyst for CO2 Transformation
Choji FukuharaSakhon RatchahatAsuka KamiyamaMasao SudohRyo Watanabe
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2019 Volume 48 Issue 5 Pages 441-444

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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.

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© 2019 The Chemical Society of Japan
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