低积炭速率连续重整催化剂的研发及工业应用

摘要

By means of adopting new promoters and preparation procedures to adjust the acidic and metallic active centers of CCR catalyst, a Low coke deposition and high selective PS-Ⅵ catalyst was developed by Research Institute of Petroleum Processing. Compared with the previous PS-V catalyst, PS-Ⅵ catalyst showed a 21% decrease in coke deposition, yet its yields of reformate and aromatics increased. Based on these experiences, by optimizing the interaction between promoters and Pt centers to further adjust the microstructure and the ratio of two kinds of Pt centers, PS-VI catalyst was obtained and commercialized. The application results showed that the coke deposition of PS-Ⅵ catalyst decreased by 36% as compared with reference catalyst, at the same time, the yields of reformate, aromatics and hydrogen increased significantly.%通过引入新助剂及采用新的制备技术,调控催化剂的活性中心,中国石化石油化工科学研究院成功开发了低积炭速率、高选择性的PS-Ⅵ型连续重整催化剂,催化剂积炭量比参比催化剂PS-V下降了21％,液体收率和芳烃产率均进一步提高.在此基础上,通过进一步优化助剂与Pt中心的相互作用,改进制备工艺流程,实现了对金属中心微观结构的调变及两种Pt中心比例的调控,开发了PS-Ⅶ型催化剂,并实现工业化.工业运转结果表明,与已有技术相比,PS-Ⅶ型催化剂积的炭量下降了36％,液体、芳烃和氢气产率均有大幅度提高.