Abstract: A 0.40 Mt/a jet fuel hydrogenation unit which was transformed from a 0.90 Mt/a catalytic cracking gasoline hydrodesulfurization unit, successfully started up in 2018. By adjusting the operating parameters, the suitable process conditions for jet fuel hydrogenation were obtained. The causes of corrosion and unstable flash point of jet fuel product were analyzed. The problems were effectively solved by reducing the feed temperature and top part temperature and pressure of stripper tower, and using nitrogen stripper at the bottom of tower.

Key words: jet fuel, hydrogenation, silver strip corrosion, flash point