Aluminum Open Cell Foams as Efficient Supports for Carbon Dioxide Methanation Catalysts: Pilot-Scale Reaction Results

作者：Frey Myriam; Bengaouer Alain; Geffraye Genevieve; Edouard David; Roger Anne Cecile

来源：Energy Technology, 2017, 5(11): 2078-2085.

DOI：10.1002/ente.201700188

<jats:title>Abstract</jats:title><jats:p>To control the highly exothermal nature of carbon dioxide methanation (Δ<jats:sub>R</jats:sub><jats:italic>H</jats:italic>=−165 kJ mol<jats:sup>−1</jats:sup>), a reactor capable of efficiently evacuating the heat generated is essential. A pilot‐scale (≈75 cm<jats:sup>3</jats:sup>) structured bed filled with an aluminum open cell foam (OCF) was chosen for the many advantages of this kind of reactor (high surface/volume ratio, low pressure drop, intensification of mass and heat transfer). A coating procedure for aluminum OCF was first developed. Different catalytic test conditions allowed a low temperature increase with a maximal value of 25 °C, as well as the influence of reaction temperature, pressure and flow rate on the axial temperature profile along the bed, to be shown. Finally, a comparison of the data collected herein for a powder fixed bed shows that the methane productivity obtained is similar to that obtained for the same catalyst in the powder form, but a much lower temperature increase due to the reaction and a lower pressure drop where clearly observed when using the aluminum OCF‐supported catalyst.</jats:p>

• 出版日期2017-11
• 单位中国地震局