초록 ▼

Cracking catalysts which yield higher octane gasoline than conventional cracking catalysts are made with large pore size zeolites such as zeolite Beta and zeolite ZSM-20 in the low sodium, H+form. These zeolites are mixed with a matrix which contains at least a binder and formed into catalyst partic

Cracking catalysts which yield higher octane gasoline than conventional cracking catalysts are made with large pore size zeolites such as zeolite Beta and zeolite ZSM-20 in the low sodium, H+form. These zeolites are mixed with a matrix which contains at least a binder and formed into catalyst particles. These catalysts are especially suitable to be used in fluid catalytic cracking.

대표청구항 ▼

A catalytic cracking catalyst comprising a primary, large pore high silica zeolite exchanged to a low soda level which is mixed in a matrix, said primary large pore zeolite being present in a catalytically effective amount for catalytic cracking and in an amount up to 80% by weight of the total mixt

A catalytic cracking catalyst comprising a primary, large pore high silica zeolite exchanged to a low soda level which is mixed in a matrix, said primary large pore zeolite being present in a catalytically effective amount for catalytic cracking and in an amount up to 80% by weight of the total mixture and where said primary large pore zeolite is not a Y-faujasite nor an X-faujasite. A cracking catalyst according to claim 1, wherein the primary, large pore zeolite is zeolite Beta, ZSM-20, or mixtures thereof. A cracking catalyst according to claim 1, wherein the catalyst further comprises a secondary zeolite in an amount of 1-30% by weight of the catalyst selected from the group consisting of X-faujasite, Y-faujasite, ferrierite, mordenite and mixtures thereof and wherein the amount of the primary, large pore zeolite is equal to or greater than the amount of the secondary zeolite.