Complexities in fcc catalyst
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This document outlines the key developments in fluid catalytic cracking (FCC) catalyst technology from the 1940s to 2000. Early catalysts used natural clays for cracking but were replaced by high alumina catalysts in the 1950s and zeolite-based catalysts incorporating Y zeolites in the 1960s which improved octane yields. Additives were later introduced to control coke production, promote desired reactions, and reduce sulfur in outputs.
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Complexities in fcc catalyst
- 1. Increasing Complexities in FCC Catalyst 1915 19701950 19601940 1980 1990 2000 First catalytic cracking AlCl3 First commercial FCC, natural clay High alumina catalyst Y zeolite based catalysts CO promoter Nickel passivation (Sb) USY zeolite Octane additive Nickel passivation (Bi) Sox additive BCA,, Resid FCC