全加氢型炼厂重油加工延迟焦化装置的设计

Design of delay coking unit for heavy oil processing of hydrogenated refinery

以按照100%俄罗斯原油设计的某炼厂为例,在设计工况的基础上测算了掺炼不同比例沙中油时,渣油加氢脱硫和催化裂化装置进料性质的变化情况。经测算,建设1套100万t/a的延迟焦化装置,当掺炼沙中油达到60%时,有利于关键装置长周期稳定运行,且使净利润由256.66元/t提高到282.26元/t。

In hydrogenated refinery designed on the basis of Russian crude oil ,the content of sulfur,carbon, Ni and V in vacuum residence hydrodesulfurization （VRDS） feed and the catalytic cracking （FCC） feed increase along with the increase of the proportion of Saudi Arabia＇ s crude oil in the Russian crude oil. When establishing a 1 000 000 t/a delay coking unit and the portion of Saudi Arabia＇ s crude oil is 60% , it is not only beneficial to the long-term reliable running but also improves the net margin from ￥ 256. 66 to ￥ 282. 26 per ton crude oil.