US 2026/0098216 A1 · RED MUD CATALYST FOR DEEP DEHALOGENATION OF PLASTIC DERIVED OIL AND PROCESSES USING THE SAME

Abstract

Processes for decontaminating a plastic derived oil include contacting a plastic derived oil stream containing halogen-containing compounds with a decontamination catalyst at a reaction temperature of 350-450° C. to produce a decontaminated plastic derived oil and a used decontamination catalyst. The decontamination catalyst includes from 5-40 wt. % red mud particles, from 20-60 wt. % matrix material, and from 10-30 wt. % binder, per unit weight of the decontamination catalyst. Contacting the plastic derived oil stream with the decontamination catalyst at the reaction conditions causes halogen-containing compounds to react to form hydrocarbons and hydrogen halides, which further react with the red mud particles to produce metal halides on surfaces of the red mud particles. The decontaminated plastic derived oil has a concentration of the halogen-containing compounds less than a concentration of the halogen-containing compounds in the plastic derived oil stream.

Claims20

Dependent claims

A process comprising contacting a plastic derived oil stream with a decontamination catalyst in a fluidized bed reactor at a reaction temperature of from 350° C. to 450° C. to produce a decontaminated plastic derived oil and a used decontamination catalyst, where:

the plastic derived oil stream comprises halogen-containing compounds;
the decontamination catalyst comprises from 5 wt. % to 40 wt. % red mud particles, from 20 wt. % to 60 wt. % matrix material, and from 10 wt. % to 30 wt. % binder, based on the total weight of the decontamination catalyst;
the contacting the plastic derived oil stream with the decontamination catalyst at reaction conditions causes at least a portion of the halogen-containing compounds to react to form hydrocarbons and hydrogen halides, where the hydrogen halides further react with the red mud particles to produce metal halides on surfaces of the red mud particles;
and
the decontaminated plastic derived oil has a concentration of the halogen-containing compounds less than a concentration of the halogen-containing compounds in the plastic derived oil stream.

2 more elements

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

a fluidized bed reactor containing a decontamination catalyst, where:
the decontamination catalyst comprises from 5 wt. % to 40 wt. % red mud particles, from 20 wt. % to 60 wt. % matrix material, and from 10 wt. % to 30 wt. % binder, based on the total weight of the decontamination catalyst;
and
the fluidized bed reactor is configured to contact a plastic derived oil stream with the decontamination catalyst to produce decontaminated plastic derived oil;
a fluid-solid separation unit disposed at an outlet end of the fluidized bed reactor, the fluid-solid separation unit configured to separate the decontaminated plastic derived oil from a used decontamination catalyst;
a catalyst regenerator disposed downstream of the fluid-solid separation unit, the catalyst regenerator configured to regenerate the used decontamination catalyst to produce a regenerated decontamination catalyst, where the catalyst regenerator is in fluid communication with the fluidized bed reactor to pass the regenerated decontamination catalyst back to the fluidized bed reactor.

3 more elements

Dependencies are inferred from the claim text.

Red mud catalyst for deep dehalogenation of plastic derived oil and processes using the same

Life of this patent

Red mud catalyst for deep dehalogenation of plastic derived oil and processes using the same

Life of this patent

Abstract

Claims20