PRT-C/PRT-D重整催化剂长周期运转应用实践

介绍了中国石化石油化工科学研究院开发的半再生催化重整（简称重整）催化剂PRT-C/PRT-D在中国石油独山子石化公司500kt/a重整装置的工业应用情况。采用PRT-C/PRT-D催化剂的第一周期经过1263 d长周期运转后，在重整原料芳烃潜含量52.30%、体积空速1.04 h-1及床层平均温度452.9 ℃的反应条件下，稳定汽油收率达到87.12%，芳烃产率为57.93%，反应器的总压降只有44.9 kPa。PRT-C/PRT-D催化剂首次器外再生后在第二周期运转1474 d，在重整原料芳烃潜含量49.40%、床层平均温度461.6 ℃、体积空速1.38 h-1的反应条件下，重整稳定汽油收率达到91.00%，芳烃产率为59.33%，反应器的总压降只有53.1 kPa。表明催化剂具有良好的再生性能，且具有较好的活性、选择性和稳定性。

PRACTICE OF LONG-TERM OPERATION OF PRT-C/PRT-D REFORMING CATALYST

The industrial application of semi-regenerative reforming catalyst PRT-C/PRT-D developed by SINOPEC Research Institute of Petroleum Processing in a 500kt/a catalytic reforming unit of Dushanzi Petrochemical Company of PetroChina was introduced. After 1 263 days long-term operation in the first cycle of PRT-C/PRT-D, using the feed with aromatics potential content of 52.30%, under the reaction conditions of space velocity of 1.04 h-1 and a weighted average bed temperature of 452.9 ℃, the stable gasoline yield was 87.12%, the aromatics yield was 57.93%, and the total pressure drop of the reactor was only 44.9 kPa. After the first off-site regeneration, the PRT-C/PRT-D catalyst had been operated for 1 474 d in the second cycle. Using the feed with aromatics potential content of 49.40%, under the reaction conditions of a weighted average bed temperature of 461.6 ℃ and a space velocity of 1.38 h-1, the yield of gasoline was 91.00%, the aromatics yield was 59.33%, and the total pressure drop of the reactor was only 53.1 kPa. The catalyst showed good regeneration performance, good activity, selectivity and stability.