Process and apparatus for chemically treating a carbon-containing feedstock
AssigneeBraskem America, Inc.
InventorsVibin Vargheese, Nicholas Wang, Graham Gregorich
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Abstract
This disclosure relates to a process for chemically treating a carbon-containing feedstock (e.g., a polymer-based feedstock) comprising contacting (e.g., by a hydrocracking reaction) the carbon-containing feedstock and a hydrogen stream in the presence of a hydrocracking catalyst, at an elevated temperature, to produce an alkane-containing product stream. The catalyst comprises at least one transition metal or transition metal oxide and does not contain an acid site. This disclosure also relates to an alkane-containing mixture obtained by the process described herein and a system/apparatus for carrying out the processes described herein.
Claims31
A process for chemically treating a carbon-containing feedstock, the process comprising:
- contacting the carbon-containing feedstock and a hydrogen stream in the presence of a hydrocracking catalyst, at an elevated temperature, to produce an alkane-containing product stream;
- wherein:
- the hydrocracking catalyst comprises at least one transition metal or transition metal oxide, and
- the hydrocracking catalyst does not contain an acid site.
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A process for depolymerizing a polymer-based feedstock, comprising:
- reacting a polymer-based feedstock with a hydrogen stream in the presence of a hydrocracking catalyst, at an elevated temperature, in a one-step, hydrocracking reaction, to depolymerize the polymer-based feedstock and form an alkane-containing product stream,
- wherein:
- the hydrocracking catalyst comprises at least one transition metal or transition metal oxide, and
- the hydrocracking catalyst does not contain an acid site.
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7-9. (canceled)
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17-18. (canceled)
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25-26. (canceled)
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A system for chemically treating a carbon-containing feedstock, the system comprising:
- a reactor receiving the carbon-containing feedstock, a hydrogen stream, and at least one hydrocracking catalyst, wherein the reactor is configured to provide an elevated temperature and to convert the carbon-containing feedstock into an alkane-containing product stream,
- wherein:
- the hydrocracking catalyst comprises at least one transition metal or transition metal oxide, and
- the hydrocracking catalyst does not contain an acid site.
33-40. (canceled)
42-45. (canceled)
Dependencies are inferred from the claim text.