Metal on rare earth modified silica alumina as hydrocarbon conve

Details Metal on rare earth modified silica alumina as hydrocarbon conve Metal on rare earth modified silica alumina as hydrocarbon conve

1992-08-20

1993-09-28

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208111, 208120, 208138, 585407, 585417, 585419, 585750, 585739, 585751, C10G 4538, C10G 4562, C10G 4568, C07C 513

Patent

active

052484092

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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