Methods and apparatuses for the isomerization and deisohexanizing of hydrocarbon feeds
AssigneeUop LLC
InventorsLaxmikant V. Bharuka, Heidi C. Fraser, David James Shecterle
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Abstract
Methods and apparatuses for the isomerization and deisohexanizing of a feed are provided. In a method for the isomerization of a feed in an isomerization zone to form an isomerized stream and the deisohexanizing of the isomerized stream in a deisohexanizer zone, heat is exchanged between the isomerization zone and the deisohexanizer zone to raise the temperature of the feed and to reduce the temperature of the deisohexanizer sidecut stream.
Claims20
A method for the isomerization of a feed in an isomerization zone to form an isomerized stream and the deisohexanizing of the isomerized stream in a deisohexanizer zone, the method comprising:
- exchanging heat between the isomerization zone and the deisohexanizer zone to raise the temperature of the feed.
A method for isomerization and deisohexanizing of a hydrocarbon feed comprising:
- isomerizing the hydrocarbon feed in a lead isomerization reactor to form a first isomerized stream;
- isomerizing the first isomerized stream in a lag isomerization reactor to form a second isomerized stream;
- deisohexanizing the second isomerized stream in a deisohexanizer;
- drawing a sidecut stream from the deisohexanizer;
- exchanging heat between the hydrocarbon feed and the sidecut stream from the deisohexanizer to raise the temperature of the hydrocarbon feed;
- exchanging heat between the hydrocarbon feed and the second isomerized stream after exchanging heat between the hydrocarbon feed and the sidecut stream;
- and
- exchanging heat between the hydrocarbon feed and the first isomerized stream after exchanging heat between the hydrocarbon feed and the second isomerized stream.
An apparatus for the isomerization and deisohexanizing of a hydrocarbon feed comprising:
- an isomerization zone including an isomerization unit configured to isomerize the hydrocarbon feed to form an isomerized stream;
- a deisohexanizer zone located downstream of the isomerization zone and configured to deisohexanize the isomerized stream;
- and
- a heat exchanger coupled between the isomerization zone and deisohexanizer zone and configured to transfer heat to the feed upstream of the isomerization unit.
Dependencies are inferred from the claim text.