洛阳分公司FDFCCⅢ生产运行分析.pdfVIP

摘 要 FDFCC-Ⅲ工艺技术是为实现生产低烯烃催化汽油、增产丙烯为 目的而研发的。该工艺以常规催化裂化工艺装置为基础，采用“双提 升管、双沉降器、双分馏塔”工艺及其专用设备，获得了国家多项专 利，具有自主知识产权，达到国际先进水平。 2008 年 6 月份洛阳石化二套催化装置 FDFCC 改造完成，在实际 工业运行过程中证明，该技术有较好的降低汽油中硫、烯烃的效果； 但生产中装置能耗偏高，在实际运行中，该装置增产丙烯的效果不理 想，而且装置运行过程中经历多次非计划停工，影响该技术在装置上 的正确评价。在蜡油加氢、焦化装置相继开工后，催化裂化装置进料 性质明显改善，此后，FDFCC 工艺的优势不再明显，为此，2010 年 11 月份，该工艺被停用。 本文总结了 FDFCC 技术正常投用的两年多时间里的各种运行情 况，针对性地进行了生产运行、技术数据比对等各方面的分析，结合 全厂调和汽油、增加效益的大形势，对该工艺进行了全面客观的评价， 证明该技术的优势不可否认，所具有的不利特点均能够通过各种优化 措施进行弥补。 关键词：FDFCC- Ⅲ；技术改造；优化 Abstract FDFCC-Ⅲ technology is developed for producing the low-alkene catalytic gasoline and increasing the output of propylene. The technology which is based on the conventional catalysis cracking unit, adopts the design of dual-riser, dual-regenerator, and dual-dephlegmator and the special equipments. It is awarded multi-patents of the nation, has independent intellectual property and achieves the international advanced standard. In June, 2008, the transformation of FDFCC in FCC- Ⅱ unit SINOPEC Luoyang Company was finished. The technology had the good effect in reducing the composition of sulfur and alkene in gasoline. While it had not ideal result in improving the increasing of propylene in realistic production, and the unit experienced unplanned shutdown more than once after the transformation. All these influence the objective evaluation to the technology. The raw material quality of FCC- Ⅱ unit is improved obviously with the Wax Oil Hydrofining unit and Delay Coking unit put into work one after another, so the superiority of FDFCC is no longer distinct. The technology was stop used in November, 2010. The thesis summarizes all kinds of operation status in more than two years in which FDFCC technology was used normally, and analyses the technological data in operation. Combined with the trend of improving benefits in the compa