화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 봄 (04/23 ~ 04/25, 창원컨벤션센터)
권호 20권 1호, p.1068
발표분야 환경
제목 Formation of Gas Hydrate from The Blast Furnace Gas of a Steel Mill for The Separation of CO2
초록 A concept of CO2 separation based on gas hydrate technology was suggested [1]. In this work, the hydrate formation phase equilibrium conditions were investigated for flue gases to separate CO2 using gas hydrate technology. The target gases include two mixed gases consisting of CO2 and N2 which are simplified flue gases, and blast furnace gas (BFG) (CO2 : CO : H2 : N2 = 20 : 23.8 : 3.5 : 52.7) which is a model composition of BFG emitted from POSCO. First, the phase equilibrium conditions of gas hydrate were measured for each gas. For the fast acquisition, the “continuous” quartz crystal microbalance (QCM) method was employed. Then the phase equilibrium conditions of gas hydrate were measured when the promoter was added with various concentrations. The studied promoters were tetrahydrofuran (THF), propylene oxide and 1,4-dioxane, which are all expected to form a structure Ⅱ hydrate. In addition, the crystal structure of gas hydrate was analyzed by XRD.
[1] Kang et al. Environ. Sci. Technol. 2000, 34, 4397
[2] Lee et al. Energy & Fuels 2012, 26, 767
저자 곽계훈1, 사정훈1, 김시환2, 이보람3, 이건홍1
소속 1포항공과대, 2포항산업과학(연), 3Colorado School of Mines
키워드 Gas hydrate; Gas separation; BFG(Blast Furnace Gas)
E-Mail ce20047@postech.ac.kr
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