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Ronningen－petter公司开发的ReactogardⅢ型逆洗式过滤器，采用常压、减压残油及减压轻油的氢化脱硫，分解装置的输送过滤对于防止触媒床的闭塞及触媒劣化抑制起到很大作用。我国在1967年，在世界刚建成的UOP公司RCD工艺指导下，已经取得85台含有1400多根的运转好成绩。近年，随着输入原油性质变化，设备的运转条件趋向于残酷化。与此对应的完全自动化和维护迅速的ReactogardⅢ型逆洗式过滤器，可以把原油中的混入固体成分、金属成分及各种异物除去，脱硫、分解装置的运转效率提高。逆洗式过滤器的基本构想。
The Reactogard Type III backwash filter developed by Ronningen-Petter uses hydrogenation desulfurization of atmospheric, vacuum and reduced-pressure light oils. The transport filtration of the decomposition unit plays a significant role in preventing catalyst bed blockage and catalyst degradation effect. In 1967, under the guidance of RCD process of UOP Company just built in the world, China has obtained 85 excellent results with more than 1,400 engines. In recent years, with changes in the nature of imported crude oil, operating conditions of the equipment tend to be cruel. The fully automated and rapidly maintained Reactogard Type III backwash filter, corresponding to this, removes solid components, metal components and various foreign matter from the crude oil and improves the operating efficiency of desulfurization and decomposition units. The basic idea of the backwash filter.