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Received July 14, 2015
Accepted August 21, 2015
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NaBH4 가수분해 반응에 의한 무인항공기용 PEMFC 수소공급
Hydrogen Supply to PEMFC for Unmanned Aero Vehicles Using Hydrolysis Reaction of NaBH4
순천대학교 화학공학과, 57922 전남 순천시 중앙로 235 1(주)CNL Energy, 57922 전남 순천시 중앙로 235 2(주)ETIS, 10122 경기도 김포시 고촌읍 황색로45번길 97
Department of Chemical Engineering, Sunchon National University, 235, Jungang-ro, Suncheon, Jeonnam, 57922, Korea 1CNL Energy Co, 235, Jungang-ro, Suncheon, Jeonnam, 57922, Korea 2ETIS Co, 97, Hwangsaek-ro 45beon-gil, Gochon-eup, Gimpo, Gyeonggi, 10122, Korea
parkkp@sunchon.ac.kr
Korean Chemical Engineering Research, February 2016, 54(1), 11-15(5), 10.9713/kcer.2016.54.1.11 Epub 12 February 2016
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Abstract
무인항공기가 장시간 비행하기 위해서는 배터리보다 고분자전해질 연료전지(PEMFC)가 적합하다. 본 연구에서는 PEMFC에 수소를 공급하는 NaBH4가수분해 반응 시스템에 대해 연구하였다. NaBH4가수분해 반응 시스템의 무게를 감소시키기 위해 수소수율 향상, 응축수 회수, 안정적인 수율 유지 등에 대해 실험하였다. 반응기 압력제어를 함으로써 수소 수율을 3.4% 향상시켰다. 수소를 공랭하여 PEMFC 스택에 공급하는 과정에서 발생하는 응축수를 NaBH4 저장조에 회수하였다. 이 과정에서 응축수가 NaBH4분말을 용해시켜 보충됨으로써 14%의 무게 감량효과가 있었다. 2.0 L/min의 속도로 수소를 발생시킬 때 Co-P-B촉매 2.0 g을 사용해서 10시간동안 96% 수소수율로 NaBH4가수분해 반응 시스템을 안정적으로 구동하였다.
Proton Exchange Membrane Fuel Cells (PEMFC) instead of batteries is appropriate for long time flight of unmanned aero vehicles (UAV). In this work, NaBH4 hydrolysis system supplying hydrogen to PEMFC was studied. In order to decrease weight of NaBH4 hydrolysis system, enhancement of hydrogen yield, recovery of condensing water and maintenance of stable hydrogen yield were studied. The hydrogen yield of 3.4% was increased by controlling of hydrogen pressure in hydrolysis reactor. Condensing water formed during air cooling of hydrogen was recovered into storage tank of NaBH4 solution. In this process the condensing water dissolved NaBH4 powder and then addition of NaBH4 solution decreased system weight of 14%. NaBH4 hydrolysis system was stably operated with hydrogen yield of 96% by 2.0g Co-P-B catalyst for 10 hours at 2.0L/min hydrogen evolution rate.
Keywords
References
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Bradley TH, Moffitt BA, Mavris DN, Parekh DE, J. Power Sources, 171(2), 793 (2007)
Liu BH, Li ZP, J. Power Sources, 187(2), 527 (2009)
Fernandes R, Patel N, Miotello A, Filippi M, J. Mol. Catal. A-Chem., 298(1-2), 1 (2009)
Fernandes R, Patel N, Miotello A, Jaiswal R, Kothari DC, Int. J. Hydrog. Energy, 36(21), 13379 (2011)
Fernandes R, Patel N, Miotello A, Appl. Catal. B: Environ., 92(1-2), 68 (2009)
Fernandes R, Patel N, Miotello A, Int. J. Hydrog. Energy, 34(7), 2893 (2009)
Moon GY, Lee SS, Yang GR, Song KH, Korean J. Chem. Eng., 27(2), 474 (2010)
Demirci UB, Garin F, J. Alloy. Compd., 463, 107 (2008)
Ye W, Zhang HM, Xu DY, Ma L, Yi BL, J. Power Sources, 164(2), 544 (2007)
Hwang BC, Cho AR, Sin SJ, Choi DK, Nam SW, Park KP, Korean Chem. Eng. Res., 20(4) (2012)
Hwang B, Jo A, Sin S, Choi D, Nam S, Park K, Korean Chem. Eng. Res., 51(1), 35 (2013)
