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发表刊物：Particuology

刊物所在地：中国

关键字：Cyclone，Supercritical fluid–solid flow，Computational fluid dynamics

摘要：The utilization of hydrogen is gaining increasing attention due to its high heating value and environmentally friendly combustion product. The supercritical water circulating fluidized bed reactor is a promising and potentially clean technology that can generate hydrogen from coal gasification. Cyclone is a vital part of the reactor which can separate incomplete decomposition of pulverized coal particles from mixed working fluid. This paper aims to gain in-depth understanding of the cyclone separation mechanisms under supercritical fluid by computational fluid dynamics (CFD). Although the amount of supercritical carbon dioxide in mixed working fluid is minor, it obviously influences the flow fields and separation efficiency of a cyclone. The simulation results suggest that both the decreasing content of supercritical carbon dioxide and adding the extra dipleg cause the promoting performance of cyclones. Research findings could refine the design of supercritical fluid–solid cyclones.

论文类型：期刊论文

学科门类：工学

文献类型：J

卷号：62

页面范围：36-46

字数：6094

是否译文：否

发表时间：2022-03-01

收录刊物：SCI