FCC catalyst and process
AssigneeAmoco Corporation
InventorMarvin R. Klotz
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Abstract
A process and catalyst are provided for the catalytic cracking of a hydrocarbon feedstock to catalytic cracking conversion products comprising the steps of contacting the hydrocarbon feedstock at catalytic cracking conditions with a catalytic cracking catalyst. The catalytic cracking catalyst is prepared by modifying a base catalyst comprising a crystalline molecular sieve and a binder by combining the base catalyst with an ion exchange solution comprising at least one trivalent cation, a trivalent cation complexing agent, and a hydroxide-producing component, wherein the ion exchange solution has a pH ranging from about 4 to about 8, and producing an ion exchanged catalyst and excess ion exchange solution. The modified catalyst is then separated from said excess ion exchange solution.
Claims20
A process for the catalytic cracking of a hydrocarbon feedstock to catalytic cracking conversion products comprising the steps of contacting said hydrocarbon feedstock at catalytic cracking conditions with a catalytic cracking catalyst, said catalytic cracking catalyst being prepared by a method comprising the steps of
- modifying a base catalyst comprising a crystalline molecular sieve and a binder by combining said base catalyst with an ion exchange solution comprising at least one trivalent cation, a trivalent cation complexing agent, and a hydroxide-producing component, wherein said ion exchange solution has a pH ranging from about 4 to about 8, and producing an ion exchanged catalyst and excess ion exchange solution;
- and
- separating said modified catalyst from said excess ion exchange solution.
A catalytic cracking catalyst comprising a crystalline molecular sieve and a binder wherein said catalyst has been modified by nondestructive trivalent cation ion exchange comprising the steps of
- modifying a base catalyst comprising a crystalline molecular sieve and a binder by combining said base catalyst with an ion exchange solution comprising at least one trivalent cation, a trivalent cation complexing agent, and a hydroxide-producing component, wherein said ion exchange solution has a pH ranging from about 4 to about 8, and producing an ion exchanged catalyst and excess ion exchange solution;
- and
- separating said modified catalyst from said excess ion exchange solution.
Dependencies are inferred from the claim text.