Catalytic Applications of Hierarchical Zeolites for Cleaner Technologies

3 Catalytic Applications of Hierarchical Zeolites for Cleaner Technologies 

The remarkable and singular properties shown by hierarchical zeolites have brought about potential catalytic applications for these materials in numerous reactions, especially those wherein steric or diffusion limitations are encountered. Table 8.3 summarizes the literature dealing with the application of hierarchical zeolites in a variety of reactions (oil refining and petrochemical reactions, and fine chemicals reactions). 

In addition to the above-mentioned applications, environmental catalysis is another field where hierarchical zeolites may have great potential. Among the investigated reactions, the following can be highlighted  

Cracking of gas oil MSU-MFI Increased conversions over mesoporous MSU-MFI (relative to ZSM-5), accompanied by higher yields of gaseous products (LPG), gasoline and light cycle oil (LCO), and lower amounts of coke. In addition, much more light olefins were also detected 1174] 

Hydrodesulfuration of gasoline and diesel fuels Pt, Pd, and Pt-Pd mesoporous ZSM-5 zeolite (total metal content of 0.5 wt%) Higher sulfur removal efficiency than metal/microporous zeolite or metal/y-Al203 1175] 

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