Catalytic Cracking of Waste Tires using Nano‐ZSM‐5/MgAl‐LDO

Catalytic cracking is a promising approach to realize the resource utilization of waste tires. Herein, a new composite catalyst, nano‐ZSM‐5/MgAl‐LDO, is synthesized, and catalytic cracking of waste tires over the composite catalyst is explored. Experimental results indicate that nano‐ZSM‐5/MgAl‐LDO composite catalyst is characterized by high dispersion of nano‐ZSM‐5 on the surface of LDO, large Brunauer–Emmett–Teller‐specific surface area, large pore diameter and volume, and suitable acid and basic properties. Moreover, not only does the nano‐ZSM‐5/MgAl‐LDO composite catalyst increase the conversion rate (62.04%) and degradation rate (1.33 × 10 −3 s −1 ) of waste tires, but it also enhances the selectivity (33.32%) of light hydrocarbons in pyrolysis products, which was nearly 10% higher than that of thermal pyrolysis.