DCC-plus工艺的工业应用及适应性分析

在DCC工艺技术基础上，中国石化石油化工科学研究院开发了增产丙烯、降低干气和焦炭产率的增强型催化裂解（DCC-plus）技术，第一套DCC-plus工业装置于2014年2月在中国海油东方石化有限公司建成并投产。为满足实际生产需要，对DCC-plus装置以及操作参数进行了适应性改进及调整，在原设计多产气体烯烃的DCC-plus装置上实现了多产汽油、柴油的加工方案，以陆丰/涠洲混合原油的常压渣油为原料，在缓和操作条件下，总液体产率达到82.23%、丙烯产率为8.07%，具有很好的产品结构灵活性。

ANALYSIS OF COMMERCIAL APPLICATION AND FLEXIBILITY OF DCC-PLUS PROCESS

On the basis of DCC technology, CNOOC Dongfang Petrochemical Co., Ltd. has adopted the DCC-plus technology developed by RIPP for increasing propylene yield and decreasing dry gas and coke yields since Feb. 2014. To meet the actual production requirements, adjustment and improvement are conducted on the original designed DCC-plus unit for olefin production to produce more gasoline and diesel. The commercial results indicate that the total liquid yield of DCC-plus unit reaches 82.23%, and the propylene yield is 8.07% under the moderate operation condition using atmosphere residue of the mixed Lufeng / Weizhou crude oil as feedstock, and the commercial performance shows that DCC-plus process has a good flexibility of product slate.