Practice and understanding of technical measures to reduce diesel to gasoline ratio in a refinery

The diesel to gasoline ratio is an important technical and economic index for oil refining enterprises. In recent years, the consumption of diesel slowed down, the consumption of gasoline increased, and the ratio of diesel to gasoline shows a downward trend with the slowdown of economic growth. In order to meet the market demand, a refinery combined with its own processing flow adopted technical measures such as optimizing the operation conditions of atmospheric and vacuum distillation unit, catalytic cracking unit and diesel oil hydrogenation unit, optimizing heavy diesel oil processing flow in atmospheric and vacuum distillation unit, applying new type catalytic cracking catalyst, conducting the MIP technical transformation of catalytic cracking unit and capacity expansion of alkylation unit, so that the diesel to gasoline ratio had decreased from 1.55 in 2015 to 1.34 in 2020, it effectively reduced the diesel output and played a positive role in improving the economic benefits of the refinery.