when 20% of coker gatch was blended in FCC feed, the light oil yield of the treated feed was 1.77 percentage points higher than that of untreated feed.

• 掺炼20%25经脱氮处理的焦化蜡油与掺炼20%25未脱氮焦化蜡油相比，轻质油收率提高1.；77个百分点。