Methods and apparatuses for an integrated isomerization and platforming process
AssigneeUop LLC
InventorBryan K. Glover
Life of this patent
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Abstract
The present disclosure generally relates to methods and systems for reforming and isomerizing hydrocarbons. More particularly, the present disclosure relates to a novel combination of two traditionally separate reforming and isomerization reaction zones. A first hydrocarbon stream comprising C5-C6 hydrocarbons is isomerized in a first isomerization zone. A second hydrocarbon stream comprising C7+ hydrocarbons is reformed thus producing a C7 hydrocarbon stream and a C8 hydrocarbon stream. The reformed C7 stream is then isomerized in a second isomerization zone.
Claims20
A method for isomerizing and reforming hydrocarbons comprising:
- feeding a feed stream comprising C5+ hydrocarbons to a splitter to form a first hydrocarbon stream comprising mainly C5-C6 hydrocarbons and a second hydrocarbon stream comprising mainly C7+ hydrocarbons;
- feeding the first hydrocarbon stream comprising mainly C5-C6 hydrocarbons to a first isomerization reaction zone comprising a first isomerization catalyst to form a first isomerization reaction zone effluent stream;
- feeding the first isomerization reaction zone effluent stream to a deisohexanizer to form a deisohexanizer effluent stream comprising compounds boiling at a lower temperature than cyclohexane that is recycled to the first isomerization reaction zone;
- feeding the second hydrocarbon stream comprising mainly C7+ hydrocarbons to a reforming zone to form a reforming zone effluent stream;
- feeding the reforming zone effluent stream to a separator to form a first separated hydrocarbon stream comprising C7 hydrocarbons and a second separated hydrocarbon stream comprising C8+ hydrocarbons;
- and
- feeding the first separated hydrocarbon stream comprising C7 hydrocarbons to a second isomerization reaction zone comprising a second isomerization catalyst to form a second isomerization reaction zone effluent stream.
A method for isomerizing and reforming hydrocarbons comprising:
- feeding a feed stream comprising C5+ hydrocarbons to a splitter to form a first hydrocarbon stream comprising mainly C5-C6 hydrocarbons and a second hydrocarbon stream comprising mainly C7+ hydrocarbons;
- feeding the first hydrocarbon stream comprising mainly C5-C6 hydrocarbons to a first isomerization reaction zone comprising a first isomerization catalyst to form a first isomerization reaction zone effluent stream;
- feeding the second hydrocarbon stream comprising mainly C7+ hydrocarbons to a reforming zone to form a reforming zone effluent stream;
- feeding the reforming zone effluent stream to a separator to form a first separated hydrocarbon stream comprising C7 hydrocarbons and a second separated hydrocarbon stream comprising C8+ hydrocarbons;
- and
- feeding the first separated hydrocarbon stream comprising C7 hydrocarbons to a second isomerization reaction zone comprising a second isomerization catalyst to form a second isomerization reaction zone effluent stream;
- wherein the second isomerization reaction zone effluent stream is recycled and passed into the first isomerization reaction zone.
Dependencies are inferred from the claim text.