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노선아,윤진한,길상인,이정규,김한석 한국청정기술학회 2018 청정기술 Vol.24 No.4
Oil shale is the sedimentary rock containing kerogen, which is one of the abundant unconventional fuel. In the pyrolysis process, oil, gas and coke are produced from the decomposition of oil shale. In this study, TGA and the continuous pyrolysis of oil shale have been investigated for the clean conversion of oil shale. Effects of reaction temperature and residence time on the pyrolysis conversion and oil production rate have been determined. Conversion of oil shale increases with increasing the reaction temperature and residence time. Optimum conditions for oil production were reaction temperature of 450 ~ 500 ℃ at the residence time of 30 min. Oil shale은 kerogen을 함유한 퇴적암으로 대표적인 비재래 에너지자원으로 알려져 있다. 열분해 공정을 통하여 oil shale이분해되면 oil, gas 및 coke를 생성하게 된다. 본 연구에서는 oil shale의 청정 전환기술을 개발하기 위하여 oil shale의 TGA 및연속 열분해 연구를 수행하였다. Oil shale의 열분해 전환율에 대한 반응 온도 및 체류시간의 영향을 살펴보고 oil의 생성율을 살펴보았다. Oil shale의 열분해 전환율은 온도와 체류시간에 따라 증가하였으며 450 ~ 500 ℃, 체류시간 30 min의 조건에서 최대 oil 생산 수율을 나타내었다.
G발표장 : 유동층3 ; G-51 : SO2 adsorption characteristics on paper sludge ash
노선아,김상돈 한국화학공학회 2007 화학공학의이론과응용 Vol.10 No.1
Paper sludge ash is produced from paper sludge combustors. In the paper mill sludge, the large amounts of the coating filler, limestone (CaCO3) were added in the pulp tank during the paper manufacturing process. Therefore, CaO content in paper sludge is commonly up to around 30%. The major objectives of the present study are to determine the kinetics of desulfurization of paper sludge ash in a thermobalance reactor (0.055 m i.d. × 1.0 m high). The effects of sulfation temperature (750°C - 900°C) and partial pressure of SO3 (3000ppm - 10000ppm) on sulfation reaction rate have been determined in a thermobalance reactor. From the Arrhenius plot, the activation energy and the pre-exponential factor are determined based on the volumetric reaction and shirinking core model. The activation energy and pre-exponential factor are found to be 51.80 kJ/mol and 5.91 l/min, respectively.
순산소 가스화 반응장에서 CO<sub>2</sub> 전환 메커니즘 연구
노선아,윤진한,길상인,이정규,민태진,Roh, Seon Ah,Yun, Jin Han,Keel, Sang In,Lee, Jung Kyu,Min, Tai Jin 대한기계학회 2015 대한기계학회 논문집. Transactions of the KSME. C, 산업기술과 혁신 Vol.3 No.4
저급 에너지인 폐기물로부터 고부가 합성가스를 생산하고 온실가스 저감 연구를 동시에 수행하기 위하여 $1000-1400^{\circ}C$의 고온에서 순산소 가스화 연구를 수행하였다. 폐기물 시료로는 RPF (Refused Plastic Fuel)를 이용하였으며 실험 장치로는 열중량 분석기와 0.5 ton/day의 pilot plant 가스화 시스템을 이용하였다. 열중량 분석기에서는 이산화탄소에 의한 RPF 촤(char)의 가스화 실험을 수행하여 온도에 따른 중량 변화를 고찰하고 Boudouard reaction에 의해 일산화탄소가 생성되는 것을 확인하였다. 또한, 0.5 ton/day pilot plant system에서 RPF의 순산소 가스화를 통하여 고농도의 수소를 함유한 합성가스를 생산하였다. 생산된 합성가스는 수송용 연료 생산과 화학제품 생산에 가능한 수소와 일산화 탄소의 비율을 나타내었다. Oxy gasification was performed for the production of high quality syngas from the waste. $CO_2$ was used as reactant with $O_2$ for $CO_2$ gasification and greenhouse gas reduction. Therefore, gasification was performed at high temperature of $1000-1400^{\circ}C$. RPF was gasified in the thermobalance and 0.5 ton/day pilot plant gasifier. Weight variation with temperature and CO production by Boudouard reaction were studied for $CO_2$ gasification of RPF in thermobalance reactor. Syngas of high $H_2$ concentration was produced from oxy gasification in 0.5 ton/day pilot system, which showed appropriate $H_2$/CO ratio for the production of transport fuel and chemical products.