Integrated process for the conversion of crude to olefins
AssigneeUop LLC
InventorsStanley S. Carp, David Banks, Alan K. Bedell, Gregory Funk, Keith Allen Couch, Stanley Joseph Frey, Cora Wang Ploentham
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Abstract
A process for producing light olefins comprising thermal cracking. Hydrocracked streams are thermally cracked in a steam cracker to produce light olefins. A pyrolysis gas stream is separated into a light stream and a heavy stream. A light stream is separated into an aromatic naphtha stream and a non-aromatic naphtha stream. The aromatics can be saturated and thermally cracked. The integrated process may be employed to obtain olefin products of high value from a crude stream.
Claims19
A process for producing light olefins and aromatics comprising:
- thermally cracking a cracking feed stream to provide a cracked stream;
- separating a pyrolysis gas stream from said cracked stream;
- separating said pyrolysis gas stream into a light stream and a heavy stream;
- and
- separating said light stream into a non-aromatic naphtha stream and an aromatic naphtha stream;
- and
- separating said non-aromatic naphtha stream into a normal paraffins stream and a non-normal paraffins stream.
A process for producing light olefins and aromatics comprising:
- hydrocracking a distillate stream from a crude distillation unit to produce a hydrocracked stream;
- thermally cracking said hydrocracked stream to provide a pyrolysis gas stream;
- separating said pyrolysis gas stream into a non-aromatic naphtha stream and an aromatic naphtha stream;
- and
- separating said non-aromatic naphtha stream into a normal paraffins stream and a non-normal paraffins stream.
A process for producing light olefins and aromatics comprising:
- thermally cracking a cracking feed stream to provide a cracked stream;
- separating a pyrolysis gas stream from said cracked stream;
- reforming a naphtha stream to produce a reformed aromatics stream;
- separating said pyrolysis gas stream and said reformed aromatics stream into a non-aromatic naphtha stream and an aromatic naphtha stream;
- and
- separating said non-aromatic naphtha stream into a normal paraffins stream and a non-normal paraffins stream.
Dependencies are inferred from the claim text.