Zeolite/LDH Composites as Additives for Light Olefin Production by Catalytic Cracking of Heavy Oil Fractions.

ABSTRACT: Among the possible strategies for the enhancement of light olefin production in the catalytic cracking of heavy oils, the use of functional additives has proven to be an effective approach. Herein, we present a composite material (Z5-LDH) derived from medium-pore zeolite ZSM-5 (Z5) and layered double hydroxide (LDH)-based mixed oxides as a potential additive for catalytic cracking of heavy oils. This material shows enhanced selectivity to light olefins within the gaseous C3-C4 fraction. The Z5-LDH composite features a core-shell structure, with the zeolite forming the core, which is surrounded by an LDH shell. It exhibits reduced Brønsted acidity compared to pure ZSM-5 and surface basicity provided by the basic oxides formed upon calcination of the LDH. The catalytic performance of the com

SUBMITTER: Rodaum C 

PROVIDER: S-EPMC12691186 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature