Use of bifunctional Pt/Al2O3 catalysts in catalytic reforming units si
gnificantly improved production. During the past four decades the powe
r of such catalyst systems has been continuously increased by the intr
oduction of various catalyst modifications. Use of reforming catalysts
containing zeolites permits combination of shape selectivity with the
conventional reforming reaction. Here, the suitability of an erionite
containing catalyst for the reforming processes is demonstrated. Gaso
lines produced with zeolite catalysts are characterised by high values
of octane numbers and low content of carinogenic benzene.