블루수소 생산을 위한 파일롯급 석유코크스 가스화 실험 및 실증급가스화 성능 예측 (Pilot-class Petroleum Coke Gasification Experiment and Performance Prediction of Demonstration-class Gasification for Blue Hydrogen Production)

서지정보

· 발행기관 : 한국에너지기후변화학회
· 수록지 정보 : 에너지기후변화학회지 / 18권 / 1호 / 21 ~ 36페이지
· 저자명 : 이진욱, 윤용승, 정석우, 이승종, 윤덕규, 이재용, 정우현, 정기진, 이지은, 류상오

초록

Recently global warming caused by greenhouse gases has emerged as an important societal issue. In thelong run, the era of hydrogen economy that produces and utilizes green-hydrogen from renewable energy sources willprevail the current fossil-fuel based energy system. Until the prevailing time of hydrogen economy, however, hydrogenshould be at least blue-hydrogen in nature which requires removal of CO2 in hydrogen generation steps. Blue hydrogencan be produced from low-grade fuels such as coal, petroleum coke and wastes with proper CO2 removal processes.
Converting low-grade fuels to hydrogen, it is essential to develop a gasification technology that produces syngas whichcontains CO, CO2 and hydrogen. Gasification is one of the most important technologies in the blue-hydrogen productionprocess. In this study, petroleum coke in slurry phase was gasified in the 2 ton/day capacity test unit. Gasification resultsyielded carbon conversion of about 93% and cold gas efficiency of about 60%. Based on the pilot-scale test results, it waspredicted that the cold gas efficiency of about 72% could be secured in the 10-times bigger 20 ton/day demonstrationscalegasification system. The prediction procedure based on the energy balance calculation for the scale-up design aswell as on the simulation results at chemical equilibrium conditions was explained.

영어초록

Recently global warming caused by greenhouse gases has emerged as an important societal issue. In thelong run, the era of hydrogen economy that produces and utilizes green-hydrogen from renewable energy sources willprevail the current fossil-fuel based energy system. Until the prevailing time of hydrogen economy, however, hydrogenshould be at least blue-hydrogen in nature which requires removal of CO2 in hydrogen generation steps. Blue hydrogencan be produced from low-grade fuels such as coal, petroleum coke and wastes with proper CO2 removal processes.
Converting low-grade fuels to hydrogen, it is essential to develop a gasification technology that produces syngas whichcontains CO, CO2 and hydrogen. Gasification is one of the most important technologies in the blue-hydrogen productionprocess. In this study, petroleum coke in slurry phase was gasified in the 2 ton/day capacity test unit. Gasification resultsyielded carbon conversion of about 93% and cold gas efficiency of about 60%. Based on the pilot-scale test results, it waspredicted that the cold gas efficiency of about 72% could be secured in the 10-times bigger 20 ton/day demonstrationscalegasification system. The prediction procedure based on the energy balance calculation for the scale-up design aswell as on the simulation results at chemical equilibrium conditions was explained.

참고자료

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