Zeolite Y alkylation catalysts
AssigneeChevron Oronite Company LLC
InventorsThomas Harris, Curt Campbell, Paul Marcantonio, Pierre Tequi, Jean-Louis Le Coent
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Abstract
The present invention is directed to a zeolite Y catalyst having a controlled macropore structure. The present invention is also directed to a zeolite Y catalyst composite and a process for preparing the catalyst composite. The catalyst composite exhibits reduced deactivation rates during the alkylation process, thereby increasing the life of the catalyst. The present invention is also directed to processes for the preparation of carbonated, overbased aromatic sulfonates, which processes comprise alkylation, carbonation of aromatic hydrocarbons with one or more olefins.
Claims30
1-43. (canceled)
An alkylated aromatic composition prepared by the process comprising contacting at least one aromatic hydrocarbon with at least one olefin under alkylation conditions in the presence of a catalyst having a macropore structure comprising zeolite Y Wherein the peak macropore diameter, measured by ASTM Test No. D 4284-03, is less than about 2000 angstroms and the cumulative pore volume of the catalyst at pore diameters less than or equal to about 500 angstroms, measured by ASTM Test No. D 4284-03, is less than or equal to about 0.30 milliliters per gram.
An alkylated aromatic composition prepared by the process comprising contacting at least one aromatic hydrocarbon with at least one olefin under alkylation conditions in the presence of a catalyst composite, wherein the peak macropore diameter of the catalyst, measured by ASTM Test No. D 4284-03, is less than about 2000 angstroms and the cumulative pore volume of the catalyst at pore diameters less than or equal to about 500 angstroms, measured by ASTM Test No. D 4284-03, is less than or equal to about 0.30 milliliters per gram, and wherein the catalyst composite comprises:
- (a) a zeolite Y;
- and
- (b) a binder.
An alkylated aromatic composition prepared by the process comprising contacting at least one aromatic hydrocarbon with at least one olefin under alkylation conditions in the presence of a catalyst comprising zeolite Y, wherein the catalyst is in the form of a tablet.
Dependencies are inferred from the claim text.