Deactivation and regeneration of a chlorinated alumina catalyst used in the skeletal isomerization of n-butenes

摘要

The skeletal isomerization of n-butenes over a chlorinate alumina catalyst has been studied, by operating under reaction-regeneration cycles in an isothermal fixed-bed integral reactor. The limiting values of the reaction and regeneration temperatures for avoiding irreversible Deactivation by loss of chlorine have been determined. Reversible deactivation by deposition of Coke, which is completely removable by combustion, is unavoidable.