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US 2010/0304956 A1Published application
Alkylation system including a catalyst regeneration zone, and a process relating thereto
AssigneeUop LLC
InventorRobert L. Mehlberg
Life of this patent
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Abstract
One exemplary embodiment can be an alkylation system including a catalyst regeneration zone. Generally, the catalyst regeneration zone includes first and second columns. The first column can provide an overhead stream having a catalyst and a first hydrocarbon, a side-stream having the catalyst and water, and a bottom stream having a second hydrocarbon. Typically, the second column receives the side-stream as a feed.
Claims21
An alkylation process, comprising:
- providing an overhead stream from a first column in a catalyst regeneration zone comprising a catalyst and a first hydrocarbon wherein said first overhead stream is substantially free of water;
- a side-stream from said first column comprising the catalyst and water;
- and
- a bottom stream from said first column comprising a second hydrocarbon;
- and
- receiving the side-stream as a feed in a second column in said catalyst regeneration zone.
3 more elements
(canceled)
A catalyst regeneration zone of an alkylation unit, comprising:
- A) a first column;
- and
- B) a second column containing a packing communicating with the first column, wherein the heat duty for the second column is supplied by a superheated hydrocarbon stream comprising isobutane.
A process for regenerating an alkylation catalyst, comprising:
- A) providing a mixture comprising the alkylation catalyst and water to a packed column wherein a reflux to the second column comprises a paraffin.
Dependencies are inferred from the claim text.