Z-700A is used in refineries and petrochemical complexes where the isomerization of pentane and hexane is required to produce a high-octane gasoline blending component.  Performance tests of Z-700A have demonstrated its resilience to sulphur poisoning and successful recovery from such incidents. Z-700A can be used in all reactor types utilised for this process: classical fixed bed reactors, radial flow reactors, etc.

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Athos-1 is a new pentane/hexane isomerization catalyst based on Shell Hysomer Process catalyst technology that builds on the commercially proven benefits of the Shell Catalysts & Technologies paraffin isomerization catalyst Z-700A.  Athos-1 offers significant operational and commercial advantages compared with previous paraffin isomerization catalysts and has been specifically designed for the isomerization of pentane and hexane to high-octane-number branched-chain hydrocarbons.

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Zeolyst Athos-3 is a high activity low density paraffin isomerization catalyst.  The Athos-3 produces higher C5+ Octane at a lower reactor temperature compared to previous generation catalysts.  The Athos-3 catalyst can be utilized as part of a stacked bed system that can be tailored to provide the optimum combination of high activity and selectivity to produce improvements in Octane-yield gains.

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Catalytic dewaxing

Used to improve cold flow properties of diesel fuels and lube oils by selective hydroisomerization/ hydrocracking of normal and slightly branched paraffins.


Custom powders and catalysts

Zeolyst International has developed and produced custom zeolite products for a variety of companies in many application areas.

Hydrocracking catalysts

We provide a variety of zeolite cracking catalysts that provide an excellent balance between the desired yield targets, product properties, and long life.