Conversion of plastics to olefin and aromatic products

A method of producing olefins and aromatic compounds from a feedstock, the method comprising:

• contacting a plastic feedstock and a catalyst composition at a temperature of 550° C. or higher, the catalyst composition comprising a fluidized catalytic cracking (FCC) catalyst and a ZSM-5 zeolite catalyst, wherein the amount of ZSM-5 zeolite catalyst makes up at least 10 wt. % of the total weight of the FCC catalyst and the ZSM-5 zeolite catalyst, the FCC catalyst being a non-fresh FCC catalyst having from greater than 0 to 0.5% by weight of coke deposition and having a total surface area of from 100 m2/g to 400 m2/g, the feedstock and the catalyst composition being at a catalyst-to-feed ratio of from 6 or greater;
• and
• allowing at least a portion of the feedstock to be converted to at least one of olefins and aromatic compounds.

A method of producing olefins and aromatic compounds from a feedstock, the method comprising:

• contacting a plastic feedstock and a catalyst composition at a temperature of 550° C. or higher, the catalyst composition comprising a fluidized catalytic cracking (FCC) catalyst and a ZSM-5 zeolite catalyst, wherein the amount of ZSM-5 zeolite catalyst makes from 10 wt. % to 50 wt. % of the total weight of the FCC catalyst and the ZSM-5 zeolite catalyst, the FCC catalyst being a non-fresh FCC catalyst having from 0.2% to 0.5% by weight of coke deposition and having a total surface area of from 100 m2/g to 200 m2/g, the feedstock and the catalyst composition being at a catalyst-to-feed ratio of from 6 or greater;
• and
• allowing at least a portion of the feedstock to be converted to at least one of olefins and aromatic compounds.