Abstract:The co-coking of hydrotreated decant oil (DO)/coal blends using a large laboratory-scale delayed coker was studied. DO was hydrotreated at several levels of severity for use in the co-coking work. Increasing the hydrotreatment severity increased the levels of hydrodesulfurization (from 50.6 to 99.0%) and hydrodenitrogenation (from 7.7 to 88.7%). Hydrotreatment resulted in increased amounts of paraffins, saturated cyclics, alkylbenzenes, two-ring aromatics, and hydroaromatics but decreased the amount of three-r… Show more
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