The catalytic pyrolysis performance of coker gas oil (CGO) and coupling with coker naphtha (CN) upgrading was investigated on a pilot plant riser unit under the process conditions of two-stage riser maximizing propylene (TMP) technology. Results showed that TMP technology displayed good a-daptability to process CGO feed. The conversion of total two stage reactions reached 87. 80%,the yield and selectivity of propylene was 18. 12% and 64. 87%.respectively; the yields of light oil and dry gas were 37. 19% and 4. 27% respectively. However,the enhanced octane number of CN could only be obtained with the coupling of CGO catalytic pyrolysis and CN upgrading,not for single CN upgrading,with a 25 % CN in the combined feedstock of CGO and CN, the RON of obtained gasoline could be more than 90.%以焦化蜡油(CGO)和焦化汽油(CN)为原料,利用两段提升管催化裂解多产丙烯技术(TMP),在提升管催化裂化中试装置上考察TMP工艺条件下CGO的催化裂解性能,以及CGO催化裂解与CN改质的耦合反应性能.结果表明:TMP工艺对于CGO具有良好的适应性,两段反应综合转化率为87.80％；丙烯收率达到18.12％,选择性为64.87％；轻质油收率为37.19％,而干气产率仅为4.27％；CN单股进料催化裂化改质对辛烷值改善效果不好,而CGO催化裂解联合CN改质时效果较好,CN回炼率为25％时,产品汽油辛烷值可达90以上.
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