The reactor and regenerator system of FCCU in the Refinery of Tianjin Petrochemical Company was revamped by using the lastest patented technique VDS system of UOP. Problems concerning operation and safety of the unit were solved.

• 天津石油化工公司炼油厂采用UOP公司最新专利技术VDS系统对催化裂化装置反应再生系统进行了改造，解决了装置目前存在的生产和安全问题。