Noble metal on rare earth modified silica alumina as hydrocarbon

Details Noble metal on rare earth modified silica alumina as hydrocarbon Noble metal on rare earth modified silica alumina as hydrocarbon

1992-02-27

1993-05-04

Dees, Carl F.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Silicon containing or process of making

502242, 502261, 502263, B01J 2112, B01J 2310

Patent

active

052082008

ABSTRACT:
Rare earth oxides, such as Nd.sub.2 O.sub.3 disperse onto the surface of SiO.sub.2 /Al.sub.2 O.sub.3 and act as weakly basic titrants. This lowers the acidity of SiO.sub.2 /Al.sub.2 O.sub.3 to close to that of chlorided alumina, as shown by model compound reaction tests. This support also disperses a noble metal such as Pt much better than undoped SiO.sub.2 /Al.sub.2 O.sub.3 and similar to chlorided alumina. Platinum on the rare earth modified silica alumina can function as a hydrocarbon conversion catalyst in reactions where Pt/chlorided Al.sub.2 O.sub.3 is used, such as in reforming, and isomerization, especially wax isomerization.

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