减压蜡油单段一次通过加氢裂化装置分馏系统技术改造

减压蜡油单段一次通过加氢裂化装置(SSOT)是齐鲁石化公司胜利炼油厂从美国引进的大型加氢联合装置中的一组操作单元。该装置自开工以来存在航空煤油、柴油馏分切割重叠较大、尾油质量不稳定、分馏塔操作弹性小等问题。采用天津大学开发的一种新型浮阀和梯形浮阀对分馏塔进行了技术改造,收到了很好的效果。

Revamping of fractionator of single-stage once through hydrocracker

Single-stage once through hydrocracker(SSOT) for decompressed waxy oil is a set of operation unit in (large-sized) hydrogenation combination units which was introduced from America by Shengli Design Institute of Qilu Petrochemical Company.Since its first running,such problems exist in the units as larger superposition on distillate incision of aviation kerosene and diesel oil,unstable quality of tail fraction,smaller flexibility of operation and so on.So the units were revamped (by using) a new kind of float valve and trapeziform valves developed by Tianjin University,which achieved better economic (benefits.)