中文摘要：

环流技术在生物工程、废水处理、有机化工、煤直接液化等领域得到了较多的研究和应用,这些研究多集中于气-液、液-固及气-液-固体系。近年来,环流技术的研究延伸到了气-固体系,应用范围也拓展到了石油炼制领域。本文重点概述了气-固环流技术在石油炼制领域中催化裂化装置的粗旋快分、汽提器、外取热器、降烯烃反应器及石油焦燃烧器等装备中的研究与应用进展,同时也对气-液环流技术在渣油悬浮床加氢、气-液-固环流技术在水合物法分离炼厂气中氢气技术上的研究与应用情况进行了综述。

英文摘要：

Loop flow technology has been widely studied and used in the fields of bioengineering,wastewater treatment,organic chemical,direct coal liquefaction,etc.,but existing research mostly focuses on gas-liquid,liquid-solid and gas-liquid-solid system.In the recent years,not only the research of loop flow technology has developed to gas-solid system,but also the application has entered to the field of petroleum processing.This paper mainly summarizes the processes in research and industry application of gas-solid loop flow technology in rough cyclone separation,stripper,heat exchanger,olefin reduction reactor,combustor for petroleum coke and so on of FCCU.Furthermore,the studies and applications of gas-liquid loop flow technology in heavy oil suspending bed hydrogenation and gas-liquid-solid loop flow technology in separating hydrogen from refinery gas by hydration are reviewed.