分段加油是为了解决輕質油在高压加氢过程中結焦問題的一种措施,也是加氢精制工业上的一項創举。頁岩干餾瓦斯中回收之輕質油安定性較差,在预热过操中极易于結焦,在处理这种油时,往往由于热交換器系統的结焦及半液相反应筒上部,积存焦紛而产生差压,給生产带来了很多困难,甚至由于結焦严 Fractional fueling is a measure to solve the problem of coking in light pressure oil during high pressure hydrogenation and is also a pioneering work in the hydrofining industry. Light oil recovered from shale gas distillation is less stable and can be easily coked during preheating. During the treatment of this oil, coking and half-liquid phase reactors in the heat exchanger system often accumulate in the upper part, Confusion and pressure have brought a lot of difficulties to the production, even because of coking strict