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。
2
Steam thermal drive oil is the method in which high pressure steam with suitable dryness fraction is injected into heavyoil stratum.
注蒸汽稠油热采是指稠油开采时向稠油层注入适当干度的高压蒸汽进行原油采集。
3
The paper also points out, the ideal technology of petroleum naphthalene production is preparing 2,6 DMN from diesel fraction, a product of heavyoil contact cracking.