Oxide-metal catalysts for the reforming of gasolines Communication 4. Reforming of the 89.5?126� fraction of the gasoline of petroleums of the volga-urals group over a palladium catalyst treated with hydrogen sulfide

Abstract

1. An investigation was made of the conditions of the reforming of the 89.5–126° fraction of gasoline from Volga-Urals petroleums at 470–480°, at 20 atm, at v=1 hour−1, and at H2: HC=12.6 over palladized alumina (0.5% Pd-Al2O3) treated with HF and H2S. 2. Under these conditions the catalyst brings about dehydrogenation of cyclohexanes, dehydroisomerization of cyclopentanes, skeletal isomerization of paraffins, and desulfurization of the gasoline. 3. A catalyst consisting of 0.5% of Pd on A12O3 and given a preliminary treatment with hydrogen sulfide was found to be more stable toward organic sulfur compounds than palladium catalysts that had not been treated with hydrogen sulfide. 4. The individual-hydrocarbon compositions of the original fraction and the catalyzate were investigated by the combined method.