Dual reactor system for simultaneous decontamination and cracking of plastic derived oil to circular chemicals

A process for upgrading plastic derived oil, the process comprising:

• combining a decontamination catalyst with a first portion of a cracking catalyst to produce a mixed catalyst, wherein the cracking catalyst is different from the decontamination catalyst;
• contacting a plastic derived oil stream with the mixed catalyst in a first reactor, where the first reactor is a fluidized bed reactor and the contacting the plastic derived oil stream with the mixed catalyst at reaction conditions produces a first reactor effluent having reduced concentrations of halogen-containing compounds compared to the plastic derived oil stream;
• separating the first reactor effluent from the used mixed catalyst;
• separating the used mixed catalyst to produce a used decontamination catalyst and a used first portion of the cracking catalyst;
• contacting at least a portion of the first reactor effluent with a second portion of the cracking catalyst at cracking reaction conditions in the second reactor, where the contacting the at least a portion of the first reactor effluent with the second portion of the cracking catalyst at the reaction conditions in the second reactor catalytically cracks the portion of the first reactor effluent to produce a second reactor effluent comprising light olefins, naphtha range hydrocarbons, or combinations thereof;
• separating the second reactor effluent from the used cracking catalyst second portion of the cracking catalyst to produce a first used cracking catalyst used second portion of the cracking catalyst;
• regenerating the used decontamination catalyst in a decontamination catalyst regenerator to produce a regenerated decontamination catalyst;
• combining the used first portion of the cracking catalyst and the used second portion of the cracking catalyst to produce a used cracking catalyst;
• and
• regenerating the used cracking catalyst in a cracking catalyst regenerator separate from the decontamination catalyst regenerator to produce a regenerated cracking catalyst, where regenerating the used cracking catalyst in the cracking catalyst regenerator reduces exposure of the cracking catalyst to halogen-containing compounds produced during regeneration of the used decontamination catalyst;
• wherein the decontamination catalyst comprises a plurality of metal oxides, each of the metal oxides are randomly distributed throughout the decontamination catalyst, and the plurality of metal oxides are selected from the group consisting of Fe2O3, ZrO2, CeO2, Al2O3, TiO2, CaO, Na2O, MgO, and combinations thereof.