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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received April 16, 2021
Accepted June 15, 2021

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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메탈폼 지지체를 이용한 액체연료 분해반응 촉매의 흡열특성

Endothermic Properties of Liquid Fuel Decomposition Catalyst Using Metal Foam Support

문정인 김나리 정병훈¹ 정지훈^†

Jeongin Mun Nari Kim Byunghun Jeong¹ Jihoon Jung^†

경기대학교 화학공학과, 16227 경기도 수원시 이의동 산 94-6 ¹국방과학연구소 4본부, 34186 대전광역시 유성구 조치원길 462

Department of Chemical Engineering, Kyonggi Universtiy, 154-42, Gwanggyosan-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, 16227, Korea ¹4th headquarters, Agency for Defense Development, 462 Jochiwon-gil, Yuseong-gu, Daeieon, 34186, Korea

Korean Chemical Engineering Research, November 2021, 59(4), 481-486(6), 10.9713/kcer.2021.59.4.481 Epub 2 November 2021

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Abstract

극초음속 비행체의 비행 중에 발생되는 열 문제를 해결하기 위해 탑재된 연료의 분해반응 시 나타나는 흡열효과를 이용하는 냉각기술이 개발되고 있다. 본 연구에서는 HZSM-5를 촉매로 사용하여 n-dodecane 연료의 분해반응을 수행하였으며, 촉매 분해반응의 흡열효과를 극대화하고 코크생성을 억제하기 위해 촉매를 메탈폼에 코팅하였다. 반응기는 외경 1.27 cm의 스테인리스 스틸 흐름형 반응기를 사용하였다. HZSM-5를 메탈폼에 코팅한 촉매를 사용한 촉매 분해반응 결과 흡열량은 최대 2887 kJ/kg, 기상전환율은 34% 이었으며, 메탈폼의 코크생성량은 촉매를 코팅함에 따라 촉매를 코팅하지 않은 것에 비해 약 56% 감소하였다.

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 °C, 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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