关键词: 塔板, 传质, 压力降, 处理量, 效率, 述评

Abstract: The present status of tray technology is reviewed focusing on the principle and structure characteristics of the latest float valve tray, novel screen opening tray, stereo-jet tray, compounded tray and tray designed for specific feed system. As compared with the conventional types of tray, these novel trays exhibited lower pressure drop, lower entrainment, higher throughput, more flexible in operation and higher plate efficiency. Finally, the future research and development of various trays are discussed.

Key words: tray, mass transfer, pressure drop, throughput, efficiency, review