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New zeolite Al-COE-4: reaching highly shape-selective catalytic performance through interlayer expansion.

Bilge Yilmaz¹, Ulrich Müller, Mathias Feyen

¹BASF Corporation, Iselin, NJ 08830, USA. bilge.yilmaz@basf.com

Chemical Communications (Cambridge, England)

|October 25, 2012

Summary

Researchers developed new zeolite catalysts, Al-COE-3 and Al-COE-4, from a ferrierite-type aluminosilicate. The Al-COE-4 catalyst exhibits exceptional shape-selectivity and high activity for hydroisomerization, a novel achievement via interlayer expansion.

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Area of Science:

Materials Science
Catalysis
Nanotechnology

Background:

Ferrierite-type layered aluminosilicates are known for their catalytic properties.
Interlayer expansion is a potential strategy to modify zeolite structures and enhance performance.
Developing novel catalysts for hydroconversion processes remains a key area of research.

Purpose of the Study:

To synthesize and characterize new zeolite catalysts derived from Al-RUB-36.
To investigate the hydroconversion activity and selectivity of the novel catalysts.
To demonstrate shape-selectivity achieved through interlayer expansion of aluminosilicates.

Main Methods:

Synthesis of ferrierite-type layered aluminosilicate Al-RUB-36.
Interlayer expansion of Al-RUB-36 to create Al-COE-3 and Al-COE-4 catalysts.
Decane hydroconversion testing to evaluate catalytic performance.

Main Results:

Successful preparation of Al-RUB-36 and its expanded forms, Al-COE-3 and Al-COE-4.
Al-COE-4 demonstrated high activity and shape-selectivity in decane hydroconversion.
Unprecedented isomerization yield achieved with the Al-COE-4 catalyst.

Conclusions:

The interlayer expansion of ferrierite-type aluminosilicates is an effective method to create novel zeolite catalysts.
Al-COE-4 shows significant potential as a highly active and shape-selective hydroisomerization catalyst.
This study presents the first report of achieving shape-selectivity through interlayer expansion in zeolites.