An additive to increase delayed coker yield has been prepared based on the mechanism of enhancing light oil yield and reducing the yields of coke and dry gas.

根据提高延迟焦化装置轻质油收率、降低焦炭和干气收率的作用机理，研制了一种延迟焦化增收剂。在实验室模拟延迟焦化装置上，对五种性质不同的原料渣油进行了空白和加剂试验。

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It has become a normal practice to estimate coker drum's service life by the extent of spheroidization of 20g steel in delayed coker operating at high temperatures.

在我国，一般通过研究高温状态下运行的延迟焦化装置焦炭塔20号锅炉钢的球化程度来评定焦炭塔的使用寿命，这已成为工程界常用的检测方法。

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Considering the high contents of olefins and nitrogen, the whole fraction of delayed coker distillates (including light and heavy naphtha, gas oil) must be hydrotreated.

延迟焦化馏出油(包括汽油、柴油及蜡油)的烯烃含量和氮含量高，必须进行加氢精制。

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