高积炭连续重整催化剂器内再生实践

高积炭连续重整催化剂由于碳含量远远超过再生系统正常运行所允许的水平，正常的器内连续再生会导致催化剂载体晶相破坏及内构件损坏。以某连续重整装置异常停工导致催化剂碳含量异常增加为例，在重整反应系统未进料的情况下，通过严格控制再生烧焦区入口温度、入口氧含量、催化剂循环量等参数，在再生器内依次通过固定床烧焦、移动床连续烧焦模式，实现了降低装置内催化剂碳含量的目的，然后通过反应进料并提高反应温度增加积炭的方式满足再生系统运行的条件，最终实现了催化剂正常再生，使催化剂活性得到完全恢复，成为国内首例高积炭连续重整催化剂器内再生的成功案例。

IN-SITU REGENERATION OF HIGH COKE DEPOSIT CONTINUOUS REFORMING CATALYST

Because the carbon content of high coke deposit continuous reforming catalyst is far beyond the level allowed by the normal operation of the regeneration system, the normal continuous regeneration in the reactor will lead to the destruction of catalyst support crystal phase and the damage of reactor internals.Taking the abnormal increase of carbon content caused by abnormal shutdown of a CCR unit as an example, under the condition of no feed into the reforming reaction system, through strictly controlling the parameters such as inlet temperature, inlet oxygen content and catalyst circulation rate in the regenerator, the coke burning in fixed bed and continuous coke burning in moving bed were adopted in the regenerator to reduce the catalyst carbon content in the unit. Then, the normal regeneration of catalyst was realized and the activity of catalyst was fully recovered. It became the first successful case of in-situ regeneration of high coke deposit continuous reforming catalyst in China.