Exploratory study on upgrading 1-butene using spent FCC catalyst/additive under simulated conditions of FCCU’s stripper Original Research Article

A novel method for upgrading n-butene into more useful propylene, iso-butene, iso-butane even gasoline using spent fluid catalytic cracking (FCC) catalysts/additives in the stripper part of fluid catalytic cracking unit (FCCU) has been proposed. The simulative tests were carried out on a widely used MAT equipment, using 1-butene as feed. High temperature and low space velocity favor the formation of propylene, iso-butene and iso-butane. The presence of MFI additives promotes propylene and iso-butene but suppresses iso-butane formation.