提高连续重整装置芳烃产率的措施及优化建议

Measuresand Optimization Suggestions to Improve Aromatics Yield in Catalytic Reforming Unit

连续重整装置是以石脑油为原料,在催化剂的作用下,生产高辛烷值汽油组分和芳烃的重要手段,同时还为加氢装置提供大量的廉价氢源,是非常重要的装置。重整装置的芳烃产率即为重整生成油液收与芳含的乘积,是评价连续重整装置运行状况的重要指标。在满足产品质量要求的条件下,通过不断优化,重整装置2017年芳烃产率平均为65.31%,较2016年芳烃产率平均61.99%提高65.31%-61.99%=3.32%,效果明显。但是,仍然存在预分馏塔分离精度不够和重整加热炉负荷不足等瓶颈问题,重整装置芳烃产率仍然有进一步提升的空间。

Catalytic reforming unit is an important means of producing high octane gasoline components and aromatics with naphtha as raw material, and provides cheap hydrogen source for hydrogenation unit, which is a very important unit. The aromatics yield variation was introduced as the important index to evaluate the running condition of the catalytic reforming reaction. Under the condition of meeting the require- ments of product quality, the total aromatics yield of reformer in 2017 is 3.32% higher than that in 2016, but there is still room for further improvement.