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고정층 반응기에서의 고온건식 탈황공정 모사에 관한 연구
신상백,윤여일,김성현 ( Sang Baek Shin,Yea Il Yoon,Sung Hyun Kim ) 한국화학공학회 1998 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.36 No.5
Zinc and iron-based sorbents were considered as prime candidate sorbents to remove H₂S in coal-derived gas. The performance of sorbents was tested at temperature range of 400-700℃, in a fixed-bed reactor using the simulated coal gas, Ten, the effective product-layer diffusion coefficient, D_e was estimated from the best-fittings of the experimental breakthrough curves and simulated breakthrough curves by the grain model and unreacted care model, respectively. These two models showed that the predicted and experimental breakthrough curves were in goad agreement. Apparent, activation energies and frequency factors were obtained for the product-layer diffusion coefficient of various sorbents by plotting in Arrhenius farm.
윤욱현(Wook-Hyun Youn),신상백(Sang-Baek Shin),류승협(Seung-Hyup Ryu),박영호(Young-Ho Park),이영철(Young-Chul Lee) 한국마린엔지니어링학회 2003 한국마린엔지니어링학회 학술대회 논문집 Vol.2003 No.-
The basic design procedures of the scoop system for cooling main condenser of a LNG carrier were reviewed. The application procedures of the experimental results from Hewins and Reilly as well as the verification method of the design for the scoop system were also studied, and the program which is able to perform the basic design calculations was developed. Using the developed program, the designs of the scoop system installed in the previous LNG carriers were examined. Through flow measurement of 137K LNG carrier sea trial and CFD of simulation, we verified scoop system design of LNG carrier. Finally, the developed program was applied to the design of new LNG carrier.
공정시스템 이동현상 화학공정안전 : 전산유체역학을 이용한 시멘트 킬른 버너의 해석
주지선(Ji Sun Ju),신상백(Sang Baek Shin),이현수(Hyun Soo Lee),이민우(Min Woo Lee),홍창식(Chang Shik Hong) 한국화학공학회 1999 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.37 No.6
In this study, analysis of burner flame for cement kiln is performed by using computational fluid dynamics(CFD). Flame shape, temperature distribution and NO_x/HCN formation are predicted to determine the performance of burners which P company designed. Type A burner has three concentric channels for swirl air, pulverized coal, and axial air in radial order. Type B burner has a special flame stabilizer at the center and channel for pulverized coal is relocated between flame stabilizer and swirl air. Velocity contours of both types show internal recirculation near burner tip, which stabilizes the flame and assists early ignition. Due to strong swirling action, type A burner has a little divergent flame. On the contrary, the flame of type B burner is relatively slim and long. Temperature distribution and NO_x concentration profiles show NO_x is intensively formed at the oxidizing atmosphere in the high temperature core of type A burner flame. However, in the type B burner, NO_x is formed at the outer flame where secondary air is supplied and NO_x formation in the high temperature core is reduced by reducing atmosphere. The methodology and results suggested in this study could be successfully applied to not only design of burners but also optimization of operational conditions.