Influence of feedstock characteristics on the enhanced production of propylene by ZSM-5 additives in the fluid catalytic cracking process

Abstract

The influence of feedstock properties on the enhanced
production of propylene by ZSM-5 additives was
evaluated for the RFCC unit (Residue Fluid Catalytic
Cracking) of Dung Quat Refinery using a FCC-SIM
simulation. The results showed that the ZSM-5 additive
produced a superior performance with the light and
paraffinic feedstock compared to the heavy, and aromatic
feedstock in terms of enhancing propylene production
at the lowest expense of gasoline. However, the later
feedstock gave gasoline with higher octane ratings by
using the ZSM-5 additive. Thus, based on the desired
products, the operator could choose suitable feedstocks
to maximise the ZSM-5 additive’s benefits.