The catalytic converter additive null flow catalytic cracking which makes the sulfur content in

摘要

This invention regards the new additive composition which makes the sulfur content of the catalytically cracked gasoline fraction decrease. As for the particular additive composition, the 1st metal of IVth family is taken in, the metal of IIth family includes the carrier which consists of the porous clay which impregnation is done. The 1st metal is zirconium, as for the 2nd metal it is desirable to be zinc. The sulfur content decrease additive was combined with the usual catalytic cracking catalyst which is fluidized hydrocarbon raw materials stock at the time of flow catalytic cracking processing in order to convert to the gasoline or other liquid product, it is used with form of the separated particle. Selective figure Figure 1