PRT-C/PRT-D重整催化剂长周期运转应用实践

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

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500 kt/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。

The industrial application of semi-regenerative reforming catalyst PRT-C/PRT-D developed by SINOPEC Research Institute of Petroleum Processing in a 500 kt/a catalytic reforming unit of Dushanzi Petrochemical Company of PetroChina was introduced.After 1263 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 1474 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.