Gasoline sulfur reduction additives - model component study

摘要

ZnAl2O4, MgAl2O4, and CuAl2O4 spinel based additives were characterized and evaluated in micro activity test unit at the fluid catalytic cracking unit conditions along with base equilibrium FCC catalyst at 10 weight percent concentration by using once through hydrocracker unit bottom feed (base feed) and the base feed spiked with thiophene model component. The sulfur shifting in liquid products such as light cycle naphtha, heavy cycle naphtha, light cycle oil and clarified oil were studied. Each additive was studied for their hydrogen transfer, aromatization, alkylation functionalities and preferential sulfur components cracking /removal.