Strictly-controlled operating temperature, lower space velocity, atmospheric pressure and necessary pre-treatment of the feed oil containing much BNC would help lengthen the service cycle.

• 在实际生产中，通过严格控制温度变化，采用低空速及常压，对含碱性氮化物较多的原料进行必要的预处理可以最大限度地延长催化剂运转周期。