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http://dx.doi.org/10.9713/kcer.2021.59.4.481

Endothermic Properties of Liquid Fuel Decomposition Catalyst Using Metal Foam Support  

Mun, Jeongin (Department of Chemical Engineering, Kyonggi Universtiy)
Kim, Nari (Department of Chemical Engineering, Kyonggi Universtiy)
Jeong, Byunghun (Agency for Defense Development, 4th headquarters)
Jung, Jihoon (Department of Chemical Engineering, Kyonggi Universtiy)
Publication Information
Korean Chemical Engineering Research / v.59, no.4, 2021 , pp. 481-486 More about this Journal
Abstract
In a hypersonic vehicle to solve the heat problem generated during flight, a cooling technology is being developed which uses the endothermic effect that appears during the decomposition reaction of the mounted fuel. In this study, the decomposition reaction of n-dodecane fuel was performed using HZSM-5 as a catalyst, and the catalyst was coated on metal foam to maximize the endothermic effect of the catalytic decomposition reaction and suppress coke formation. The reactor was a stainless steel flow reactor with a outer diameter of 1.27 cm, and the reaction temperature was 550 ℃, the reaction pressure was 4 MPa, and the flow rate was 12 ml per minute. As a result of the catalytic decomposition reaction using a catalyst coated with HZSM-5 on the metal foam, the heat sink was 2887 kJ/kg as a maximum, the gas phase conversion rate was 34%, and the amount of coke produced on the metal foam decreased by about 56% as the catalyst was coated compared to the uncoated catalyst.
Keywords
Endothermic Fuel; Heat sink; Zeolite; Washcoating; Metal Foam; Flow Reactor;
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