Granular filter media of two dimension bin

• Main Authors: Ti-Chen Liu, 劉題銓
• Other Authors: Shu-San Hsiau
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/55180258844366710946

碩士 === 國立中央大學 === 能源工程研究所 === 98 === The gasification systems for power generation and the advanced coal-fired power plants have been developed in United States, Europe and Japan in recent years. High temperature syngas with dust particulates and fly ashes is generated during the gasification. In order to protect the gas turbine from particulates and to increase the efficiency of system, the dirty syngas should be cleaned before entering the gas turbine. This work continues in design of two-stage granular moving bed filter for syngas cleanup. The flow pattern and velocity field of granular filter media in 2D model of filter vessel are presented in this work. Jenike shear tester was used to measure flow properties of fine and coarse fliter media for design of mass flow of filter vessel. Attention was devoted to wall friction of filter media on stainless wall specimen. Detailed analysis of normal and shear forces in wall shear tests is part of this work. As filter media, the fine and coarse silica sands were tested. The particle size analysis shows that angle of wall friction decreases with increase of median d50 particle size.