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Methanation of carbon dioxide and fluidization quality in a fluid bed reactor—the influence of a decrease in gas volume

✍ Scribed by Takami Kai; Shintaro Furusaki

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
478 KB
Volume
42
Category
Article
ISSN
0009-2509

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✦ Synopsis

A large decrease of fluidization quality was observed when methanation of carbon dioxide was carried out in a fluid-bed reactor even if the catalyst particles had the optimal properties for good fluidization. The cause of this phenomenon was explored by measuring pressure fluctuations, bubble frequency and extent of CO, conversions. The results indicated that the decrease of the fluidity was caused by a reduction in volume of reactant gases due to the reaction. The voidage in the emulsion phase is considered to be an important factor affecting the fluidity. The fluidization quality and contacting efficiency could be improved by such devices as baffle internals or two-stage spargers.

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