Role of iron contaminants in the pathway of ultra-stable Y zeolite degradation

Abstract

Fluid catalytic cracking (FCC) plays a vital industrial role globally. The factors influencing the stability of its zeolite Y in the presence of iron contaminants remain one of the most...

The Beneficial Role of Nano-Sized Fe3o4 Entrapped in Ultra-Stable Y Zeolite for the Complete Mineralization of Phenol by Heterogeneous Photo-Fenton Under Solar Light

“…Quantitative phase analysis showed the presence of a significant amount of amorphous phase on the sample, probably resulting from the dealumination process in agreement with the analyses reported by the authors (Liu et al, 2022;Shirvani et al, 2019).…”

“…In particular, the ultra-stable Y zeolite (USY) in its hydrogen form was selected for its high thermal stability to retain the zeolite porous architecture, crucial for the catalytic application. USY zeolite is wellknown from the sixties of the past century and its use is widespread as a catalyst for the cracking reaction of high molecular weight hydrocarbons, residual of the topping operations of oil (Liu et al, 2022). Its synthesis and dealumination procedure has been optimized for a long time, which results in its low cost (Breck and Smith, 1959;Neamt ¸ et al, 2004a).…”

Identification of coke species on Fe/USY catalysts used for recycling polyethylene into fuels

“…3a), indicative of the Fe 2 O 3 particles adhering to the crystal skeletons of the USY zeolite. 32 The surface of the spent Fe/USY catalyst is much rougher (Fig. 3b), primarily due to coke deposition.…”