Hydrotreating of catalytic cracking gasoline by CDHydro /CDHDS technology

CDHydro /CDHDS technology developed by CDtech Company,US,was used to hydrotreat catalytic cracking( FCC) gasoline in a refinery of China. The technology combined the hydrodesulfurization and catalytic distillation processes in one column,and realized an ideal separation between light and heavy gasoline. The results showed that it presented a good desulfurization effect without significant loss of octane number. The mass fractions of sulfur in light and heavy gasoline were decreased to 5. 4 × 10-6and 38. 0 × 10-6respectively,and the volume fraction of olefin in heavy gasoline was decreased to 33%.