인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Recently global warming caused by greenhouse gases has emerged as an important societal issue. In the long run, the era of hydrogen economy that produces and utilizes green-hydrogen from renewable energy sources will prevail the current fossil-fuel based energy system. Until the prevailing time of hydrogen economy, however, hydrogen should be at least blue-hydrogen in nature which requires removal of CO₂ in hydrogen generation steps. Blue hydrogen can 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 which
contains CO, CO₂ and hydrogen. Gasification is one of the most important technologies in the blue-hydrogen production process. In this study, petroleum coke in slurry phase was gasified in the 2 ton/day capacity test unit. Gasification results yielded carbon conversion of about 93% and cold gas efficiency of about 60%. Based on the pilot-scale test results, it was predicted that the cold gas efficiency of about 72% could be secured in the 10-times bigger 20 ton/day demonstration-scale gasification system. The prediction procedure based on the energy balance calculation for the scale-up design as well as on the simulation results at chemical equilibrium conditions was explained.
contains CO, CO₂ and hydrogen. Gasification is one of the most important technologies in the blue-hydrogen production process. In this study, petroleum coke in slurry phase was gasified in the 2 ton/day capacity test unit. Gasification results yielded carbon conversion of about 93% and cold gas efficiency of about 60%. Based on the pilot-scale test results, it was predicted that the cold gas efficiency of about 72% could be secured in the 10-times bigger 20 ton/day demonstration-scale gasification system. The prediction procedure based on the energy balance calculation for the scale-up design as well as on the simulation results at chemical equilibrium conditions was explained.
본문·목차
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